Uploaded byKongsbreen
PPTX, PDF399 views

Energy transition

The document discusses the ongoing global transition away from fossil fuels toward renewable energy. It outlines the rise of solar, wind, and other renewable sources of energy as coal, oil, and nuclear power decline. Coal use is peaking in many countries as plants close due to regulations and competition from cheaper renewables and natural gas. Solar and wind power have experienced remarkable cost declines and are increasingly outcompeting fossil fuels in many places. The transition is being driven by falling prices, technological advances, concerns about pollution and climate change, and shrinking fossil fuel reserves that are harder and more expensive to access.

Embed presentation

Downloaded 19 times
Energy transition Our future is starting now !
Contents 1) Changing Direction 2) The Rise and Fall of Oil 3) Closing Coal Plants 4) Nuclear Power in Decline 5) The Solar Revolution 6) The Age of Wind 7) Tapping the Earth’s Heat 8) Hydropower: Past and Future 9) Accelerating the Transition
Glimpses of the Energy Transition • South Australia: Wind farms supply more electricity than coal plants • China: Water for 170 million households is heated by rooftop solar water heaters • United Kingdom: For several days in August 2014, wind electricity eclipsed that from coal • Spain: Wind is close to overtaking nuclear power as the leading source of electricity
Global Annual Energy Growth, 2008-2013 0 10 20 30 40 50 60 70 Percent EarthPolicyInstitute-www.earth-policy.org Source: EPI from BP, EIA, and REN21
Drivers • Economic: Cost of renewables falling • Technological: Advances in PV, batteries • Social: Growing opposition to coal and nuclear power • Geological: Remaining fossil fuels harder to access and more costly • Climatic: Carbon emissions destabilizing the climate, threatening civilization
Climate Disruption • Fossil fuel burning is increasing carbon dioxide (CO2) levels in the atmosphere, raising the earth’s temperature • Continued heavy fossil fuel reliance could raise the global temperature up to 6°C (nearly 11°F) by 2100 260 280 300 320 340 360 380 400 13.4 13.6 13.8 14.0 14.2 14.4 14.6 14.8 1880 1900 1920 1940 1960 1980 2000 AtmosphericCO2(ppm) Temperature(degreesCelsius) Source: NASA GISS; NOAA ESRL; Worldwatch Average Global Temperature and Atmospheric Carbon Dioxide Concentration, 1880-2014 Temperature CO2 Earth Policy Institute - www.earth-policy.org
2° Safety Limit • The international community agreed to limit warming to 2°C (3.6°F) to prevent dangerous climate change • Higher temperatures: – Melt ice sheets and glaciers – Raise sea level – Increase drought in some areas – Intensify rainfall in others – Cause more-destructive storms Photo Credit: Nomadic Lass (Flickr: Columbia Glacier)
Stranded Assets • To keep global warming to 2°C, most fossil fuels need to stay in the ground • Fossil energy companies will likely lose value • Related infrastructure may also become stranded – Power plants – Coal mines – Pipelines – Coal handling and storage facilities Photo credit: Emily Adams
THE RISE AND FALL OF OIL Photo Credit: U.S. Coast Guard
The Rise and Fall of Oil 0 10 20 30 40 50 60 70 80 90 100 1965 1975 1985 1995 2005 2015 MillionBarrelsDaily Source: BP World Oil Consumption, 1965-2013 EarthPolicyInstitute-www.earth-policy.org • Worldwide oil use continues to grow • But “easy oil” is getting tapped out • In some countries, like the United States and Japan, oil use has peaked and is on the decline
0 5 10 15 20 25 1965 1975 1985 1995 2005 2015 MillionBarrelsPerDay Source: EPI from EIA EarthPolicyInstitute-www.earth-policy.org Consumption Production U.S. Oil Use Down • U.S. #1 consumer • U.S. oil use fell 8.5% from 2005 to 2014 – People driving less – Better vehicle efficiency – Public transit expanding – Culture change: young people no longer prioritizing cars – Car sharing and bike sharing spreading U.S. Oil Consumption and Production, 1965-2014
Natural Gas: A Bridge to Nowhere • Horizontal drilling and hydraulic fracturing (“fracking”) have created a U.S. oil and gas boom • Methane leaks along the supply chain mean gas may be more climate disrupting than coal • Other concerns: wasted investment in short-term infrastructure; water and air pollution; earthquakes Photo Credit: Bilfinger SE/U.S. Department of Energy
CLOSING COAL PLANTS Photo Credit: National Renewable Energy Laboratory
World Electricity Profile, 2012 Coal 41% Natural Gas 23% Hydro 16% Nuclear 11% Oil 5% Wind 2% Biofuels and Waste 1.9% Solar 0.4% Geothermal 0.3% EarthPolicyInstitute-www.earth-policy.org Source: OECD
Coal: Last Century’s Dirty Fuel • Air pollution from coal-burning leads to heart and lung diseases, early death • Leading source of CO2 emissions • Coal-fired power plants require large amounts of water 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 1965 1975 1985 1995 2005 2015 MillionTonsOilEquivalent Source: BP World Coal Consumption, 1965-2013 EarthPolicyInstitute-www.earth-policy.org
Coal Plants Closing • Lower natural gas prices, air pollution regulations, and local campaigns are closing coal plants across the United States • Of the 523 U.S. coal-fired power plants, 188 have recently closed or plan to close • Australia, Canada, and many E.U. countries have also passed peak coal Coal Consumption in the United States, 1965-2014 0 100 200 300 400 500 600 700 1965 1975 1985 1995 2005 2015 MillionTonsOilEquivalent Source: EIA EarthPolicyInstitute-www.earth-policy.org
Peak Coal in China? • China’s coal use: – Exceeds the rest of the world combined – But fell in 2014 for the first time in recent history • Peak coal is near: – Air pollution concerns – Environmental regulations – Wind and solar booming – Improving efficiency – Slowing economic growth – U.S.-China climate agreement 0 200 400 600 800 1,000 1,200 1,400 1,600 1,800 2,000 1965 1975 1985 1995 2005 2015 MillionTonsOilEquivalent Source: BP; NBS Coal Consumption in China, 1965-2014 EarthPolicyInstitute-www.earth-policy.org
India Coal Use Growing • Indian government claims to be doubling down on coal, planning hundreds of new plants • How many will be built remains to be seen – Urban air pollution worse than in China – Local opposition to coal – Taxes on coal doubled, partly funding solar development – Solar costs undercut the grid in much of the country 0 50 100 150 200 250 300 350 1965 1975 1985 1995 2005 2015 MillionTonsOilEquivalent Source: BP Coal Consumption in India, 1965-2013 EarthPolicyInstitute-www.earth-policy.org
NUCLEAR POWER IN DECLINE Photo Credit: Sandia Science & Technology Park
Nuclear Power in Decline • Global nuclear generation peaked in 2006 • Peaked in France in 2005; United States in 2010 • Number of operating reactors dropped from high of 438 in 2002 to 390 as of end-2014 0 500 1,000 1,500 2,000 2,500 3,000 1970 1980 1990 2000 2010 2020 Terawatt-hours Source: EPI from BP, IAEA/Chabot World Electricity Generation from Nuclear Power Plants, 1970-2014 EarthPolicyInstitute-www.earth-policy.org
Costly from Cradle… • Unlike with wind and solar power, building new nuclear facilities has become more expensive over time • Construction delays and cost overruns are typical features of nuclear projects • Of 66 reactors under construction in mid-2014, 49 were behind schedule, including all 5 in the United States and 20 of 27 in China Photo Credit: Wikimedia Commons/ Tennessee Valley Authority
…to Grave • Costs rising for aging plants— operation, maintenance, fuel • Squeezed by cheap renewables and natural gas, 5 U.S. reactors have retired early since 2013 • Closing is costly: ~$4.4 billion for two California reactors; $130 billion for 4-reactor U.K. site with legacy of weapons-grade plutonium • Nuclear waste disposal problem remains unresolved Photo credit: Wikimedia Commons/awnisALAN
Fukushima Meltdown Hastens Decline • 2011 earthquake/tsunami crippled Fukushima plant, leaked radiation • All Japanese reactors eventually off-line; no nuclear generation since mid-2013, as of early 2015 • Germany, Switzerland, Belgium announced nuclear phase-outs • France cutting nuclear reliance from 75% of electricity to 50% by 2025 Data provided by: Mycle Schneider Consulting www.worldnuclearreport.org
Low-Carbon, Low-Risk Energy Building wind and solar power capacity is quicker and more affordable than building nuclear—without the financial, environmental, and health risks associated with atomic power Photo Credit: Wikimedia Commons/ILIOTEC Solar GmbH; Iberdrola Renewables Inc.
THE SOLAR REVOLUTION Photo Credit: Dennis Schroeder / NREL
The Solar Revolution • Solar PV converts sun’s energy into electricity • Fastest-growing electricity source worldwide • > 50% annual growth 2008–2013 • Can scale up from small rooftop systems to massive utility-scale arrays 0 20 40 60 80 100 120 140 2000 2005 2010 2015Terawatt-hours Source: BP EarthPolicyInstitute-www.earth-policy.org World Solar-Generated Electricity, 2000-2013
Solar Beating the Grid • In growing number of markets, solar-generated electricity now cheaper than grid average • U.S. utility-scale PV system costs down ~80% since 2009 • Globally, solar panels cost over $74/watt in 1972 • Mid-2014 price: below 70¢/watt • Innovation and policy drove remarkable price decline Image Credit: Lazard Levelized Cost of Energy for Utility-scale Solar PV Systems in the United States, 2009-2014
The Utility Death Spiral • Spread of rooftop PV threatening traditional utility business model – Customers with PV buy less electricity from utility – More PV electricity on grid drives down power prices – Utility forced to raise rates, more people go solar • RWE and E.ON, Germany’s two largest utilities, caught off- guard – Did not anticipate fast rise of solar and wind – Overinvested in fossil fuel and nuclear generation – Now reinventing themselves to survive in new energy landscape
0 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 2000 2005 2010 2015 Megawatts Source: EPI from BP, IEA-PVPS Germany Japan U.S. Italy EarthPolicyInstitute-www.earth-policy.org China Solar Goals Expanding • Chinese goal for 2020 was 20,000 MW of PV; then 50,000; now it’s 70,000 MW by 2017 • India was aiming for 22,000 MW by 2022; government indicates new target will be 100,000 MW Cumulative Installed Solar Photovoltaics Capacity in Leading Countries, 2000-2014
PV Improving Access to Electricity • For the 1.3 billion people without access to electricity, PV is cheaper than building centralized power systems • India: – Replacing polluting kerosene lamps with PV charging for CFL or LED lamps and a cell phone: 1) lowers monthly outlays, and 2) pays for itself in ~3 years • Bangladesh: – As of 2014, with World Bank help, over 70,000 solar home systems were being installed each month
Concentrating Solar Power • In CSP systems, mirrors concentrate sunlight to drive conventional steam turbines or engines • By mid-2014, world had 4,100 MW of CSP, mostly in Spain and the U.S. • Thermal storage in molten salts allows for generation after sundown Photo Credit: Sandia National Laboratories
Solar Water Heaters • Rooftop solar thermal collectors heat water directly • China dominates: enough installed rooftop systems to supply 170 million households • Used in some 85% of Israeli homes • Also popular in Europe (e.g. Germany and Austria) Photo Credit: www.davidlearnschinese.com
THE AGE OF WIND Photo Credit: Wikimedia Commons/Drenaline
The Age of Wind • Wind is abundant and widespread • Wind farms are easily scalable, and increasingly cheap • Nearly 370,000 MW installed in some 90 countries produce enough electricity to power 90 million U.S. homes 0 100 200 300 400 500 600 700 1985 1990 1995 2000 2005 2010 2015 Terawatt-hours Source: BP World Wind-Generated Electricity, 1985-2013 EarthPolicyInstitute-www.earth-policy.org
World Wind Leaderboard • In Spain, wind output now exceeds that from coal plants • India targeting at least 60,000 MW by 2022 • Offshore installations expanding; half the world’s capacity in the U.K • Development heating up in Latin America Cumulative Installed Wind Power Capacity in Leading Countries, 1995-2014 0 15,000 30,000 45,000 60,000 75,000 90,000 105,000 120,000 135,000 1980 1985 1990 1995 2000 2005 2010 2015 2020 Megawatts Source: EPI from GWEC, Worldwatch, CREIA, EWEA, BWEA United States Germany Spain China India EarthPolicyInstitute-www.earth-policy.org United Kingdom
Wind Overtakes Nuclear in China • Wind is now China’s #3 electricity source behind coal and hydro • Wind’s lead over nuclear will grow – Much quicker to build – No water constraints – Wind potential could meet current electricity demand 10 times over – Goal = 200 gigawatts of wind capacity by 2020 Wind- and Nuclear-generated Electricity in China, 1995-2014 0 20 40 60 80 100 120 140 160 180 1995 2000 2005 2010 2015 Terawatt-hours Source: EPI from BP, NEA, CNEA Nuclear Wind EarthPolicyInstitute-www.earth-policy.org
U.S. Wind Power • China has greater installed wind capacity, but U.S. wind farms generate more electricity • Nine states generate >12% of electricity from wind • In Iowa and South Dakota, the share exceeds 25% • If Texas were a country, it would rank sixth in installed wind power capacity 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 110,000 120,000 130,000 Megawatts Cumulative Installed Wind Power Capacity in Leading Countries and Texas, 2014 EarthPolicyInstitute-www.earth-policy.org Source: EPI from GWEC, AWEA
42.8 24.1 20.0 18.9 9.4 9.1 8.8 0 10 20 30 40 50 Denmark Portugal Spain Ireland United Kingdom Germany Romania Percent Source: Compiled by EPI from Energinet.dk; REN; REE; EirGrid; DECC; BDEW; Transelectrica EarthPolicyInstitute-www.earth-policy.org More Wind on the Grid • European countries dominate in the share of electricity generated from wind farms • Four German states get more than 50% of their electricity from wind • On some days wind power exceeds half of Ireland’s electricity generation Wind Share of Electricity Generation in Leading Countries, 2014
Wind-Powered Denmark • In 1970s, began using electricity taxes to pay for renewable energy R&D • Home to Vestas, world’s #1 wind turbine installer • Got 62% of its electricity from wind in January 2014 • For 2014 as a whole: 40% • By 2016, new wind farms will supply electricity at half the cost of new coal or gas plants • Goal is 50% wind by 2020 Photo Credit: Dirk Ingo Franke
TAPPING THE EARTH’S HEAT Photo credit: Wikimedia Commons/Gretar Ívarsson
Tapping the Earth’s Heat • Geothermal resources richest in areas with high tectonic activity • Some 40 countries with 860 million people could meet all their electricity needs with geothermal energy Image Credit: NOAA mod. USGS/Topinka
Iceland: Geothermal Powerhouse • Space heating: – In 1970, over 50% came from burning oil, 43% from geothermal – Today geothermal heat covers close to 90% • Other direct uses: – Swimming/bathing, fish farming, greenhouse heating, snow melting • Electricity: – 29% of electricity from geothermal, more than any other country – Cheap electricity from geothermal and hydropower allowed Iceland to become a leading aluminum producer Photo Credit: Wikimedia Commons/Bloody-libu
Geothermal Energy – Direct Use • In China, geothermal district heating rose 5-fold in last decade • Japan has 2,000 spas, 5,000 bathhouses, and 15,000 hotels using nature’s hot water • Ball State University in Indiana expects geothermal heating and cooling to save the school 33,000 tons of coal and $2 million per year 0 2,000 4,000 6,000 8,000 China Turkey Iceland Japan India Italy United States Hungary New Zealand Brazil Megawatts Installed Direct-Use Geothermal Capacity in Leading Countries, 2014 EarthPolicyInstitute-www.earth-policy.org Source: EPI from Lund
Geothermal Power • Philippines’ goal is 3,300 MW by 2030 • Indonesia’s target is 10,000 MW by 2025 • Japan has enough geothermal power potential to meet over half its electricity needs • Enhanced Geothermal Systems technology could lead to some 500,000 MW of geothermal power in the United States 0 1,000 2,000 3,000 4,000 United States Philippines Indonesia Italy New Zealand Mexico Iceland Japan Kenya Turkey Costa Rica El Salvador Nicaragua Megawatts Source: BP EarthPolicyInstitute-www.earth-policy.org Geothermal Electricity-Generating Capacity in Leading Countries, 2013
Photo credit: Grand Coulee, Farwestern / Gregg M. Erickson via Wikimedia Commons HYDROPOWER: PAST AND FUTURE
Hydropower Worldwide • Used in 150 countries • Supplies 16% of the world’s electricity • Global capacity of 1 million MW • Of the world’s 45,000 large dams, 8,600 generate electricity • Pumped storage 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 1965 1975 1985 1995 2005 2015 Terawatt-hours Source: BP, IEA EarthPolicyInstitute-www.earth-policy.org World Hydroelectric Generation, 1965-2013
• Industrialized country rivers near dam saturation • Lower-income countries still expanding hydro • Race is on to develop remaining hydropower frontiers, including the powerful Congo River and rivers originating in the Himalayas 0 200 400 600 800 1,000 China Canada Brazil United States Russia India Norway Venezuela Japan France Terawatt-hours Source: BP EarthPolicyInstitute-www.earth-policy.org Hydropower Development Hydroelectric Generation in Leading Countries, 2013
Large Hydropower: a Mixed Picture Pros • Abundant energy resource • Renewable • Dams can provide flood control • Can provide irrigation water • Can provide continuous baseload power or quickly ramp on or off Cons • Flooding displaces people, plants, and animals • Weakens river resilience • Traps sediment, shrinking downstream lakes and wetlands • Impedes the movement of fish and other creatures • Reservoirs emit climate- disrupting methane gas • Power distribution required • Expensive: typically >2x original cost estimate, per Oxford study • Long build time; opportunity cost
Three Gorges Dam • Location: Yangtze River, China • Online in 2003, complete in 2012 • Height: 600 feet • Capacity: 22,500 MW • Annual output: 83 million megawatt-hours – Equivalent to 45 million tons of coal, 12 nuclear reactors • Flooded 244 square miles and displaced 1.4 million people • Total cost could reach $88 billion Photo Credit: Le Grand Portage derivative work: Rehman via Wikimedia Commons
Hydropower in the United States • Supplies 7% of all electricity generation, 51% of renewable generation • Most in Pacific Northwest • Fewer than 3% of the 80,000 U.S. dams generate electricity • Over the last quarter century, nearly 900 U.S. dams have been removed • Powering unequipped dams could ramp up generation Photo credit: Clubber Lang via Flickr
ACCELERATING THE TRANSITION Photo Credit: iStockPhoto / Joe Gough
Saving Energy Saves Money • Investing in efficiency is less costly than building new generating capacity • Efficiency measures by 11 industrial countries since the 1970s saved $740 billion in avoided energy costs in 2011 alone • A systemic switch from incandescent bulbs to efficient lighting solutions worldwide could allow closure of some 270 coal-fired power plants • Japan’s Top Runner Program is a model for ratcheting up efficiency standards on lighting, electronics, vehicles, and more
Policy Matters • Artificially cheap fossil fuels still heavily subsidized • Renewable feed-in tariffs, tax credits, and energy mandates help level playing field • Unpredictable policy environment has led to boom-bust cycle in U.S. wind industry Net Annual Installed Wind Power Capacity Additions in the United States, 1998-2014 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 1998 2001 2004 2007 2010 2013 Megawatts Source: EPI from Worldwatch, DOE, AWEA Production Tax Credit Lapses EarthPolicyInstitute-www.earth-policy.org
Putting a Price on Carbon • Can supercharge the transition by systematically pricing carbon to better reflect fossil fuels’ true social and environmental costs • Cap-and-Trade – Regulators set a limit on emissions and polluters can either reduce their emissions or buy permits on the carbon market – EU had first international Emissions Trading System (ETS) • Carbon Tax – Tax levied on each ton of carbon dioxide emitted – Far simpler than cap-and-trade – Potentially revenue-neutral – can be offset by reductions in income taxes
Carbon Pricing in Action Image Credit: World Bank
Carbon Tax Successes • Ireland: set carbon tax on natural gas and oil consumption in 2010; by 2013, emissions had fallen some 6% while economy grew • British Columbia: set economy-wide carbon tax in 2008; per person consumption of gasoline and other petroleum products fell 15%, three times the national average, while economic growth has kept pace
Fossil Fuel Divestment • Campaign is encouraging divestment from coal, oil, and natural gas companies • Rockefeller Brothers Fund’s original resources came from Standard Oil; now ditching all fossil fuel related holdings • Others divesting from all fossils incl.: Guardian Media Group; Syracuse University • Coal focus: World’s largest sovereign wealth fund (Norway); Stanford University Photo Credit: 350.org
Green Power Purchasing • > 600 entities generate or purchase enough renewable electricity to meet 100% of their needs in U.S.—including Intel, Kohl’s, Staples, Unilever • Google aiming for 100% renewable electricity – Buys staggering amount of wind-generated electricity – Turning abandoned California oil and gas field into an 82-MW solar farm Image Credit: SunEdison
Renewables Make Business Sense • Apple’s 25-year, $850 million solar power purchase agreement with First Solar to supply CA operations • Large investment institutions like Morgan Stanley and Goldman Sachs channeling tens of billions of dollars into renewable energy “It’s a business decision. The renewable energy we buy meets or beats prices from the grid.” – Walmart CEO Bill Simon, 2014 • Walmart has 260 PV systems on its U.S. buildings, aiming for 400 more by 2018 Photo Credit: Walmart/Flickr
Billionaires Betting Big on Renewables Photo Credit: Todd Spink • Warren Buffett – $15 billion invested in solar and wind by early 2014 – “There’s another $15 billion ready to go.” • Ted Turner – With utility Southern Power, acquired 7 solar PV farms totaling ~300 MW • Philip Anschutz – Will soon have a massive 3,000 MW wind farm under construction in Wyoming to supply CA, NV, AZ
New Energy Economy • Each country can take advantage of its unique mix of renewable resources • Developing countries may bypass the electric grid and jump straight to distributed solar Photo Credit: Flickr/SELF
The Future of Energy • Unlike fossil fuels, energy from the wind and the sun – is clean – is inexhaustible – the costs are falling fast – the fuel is free Photo Credit: MrRenewables via. Wikimedia Commons
Energy Independence • Rooftop solar panels power homes and recharge car batteries, delivering a degree of personal energy independence not known for generations • The old energy economy was tightly controlled by those who held fossil fuel deposits; the new energy economy is much more democratic • Results we can live with: Cleaner air, cleaner water, and a more stable climate

More Related Content

PPTX
Biomass
bySainadhReddySyamalaA
 
PPTX
biomass presentation
bymahmoud elgharabawi
 
PPT
Energy conservation
byJyotsna Narang
 
PPTX
Biomass
bySalwa Elsayed
 
PDF
Biodiesel 2
byKhawar Nehal khawar.nehal@atrc.net.pk
 
PPTX
Renewable energy
byKaya Kaya
 
PDF
Biomass conversion for energy
byH Janardan Prabhu
 
PPTX
Pyrolysis of waste plastics into fuels
byAdnanAzmat
 
Biomass
bySainadhReddySyamalaA
 
biomass presentation
bymahmoud elgharabawi
 
Energy conservation
byJyotsna Narang
 
Biomass
bySalwa Elsayed
 
Biodiesel 2
byKhawar Nehal khawar.nehal@atrc.net.pk
 
Renewable energy
byKaya Kaya
 
Biomass conversion for energy
byH Janardan Prabhu
 
Pyrolysis of waste plastics into fuels
byAdnanAzmat
 

What's hot

PDF
Hydrothermal Liquefaction
byMerrick & Company
 
PPTX
Hydrogen fuel & its sustainable development
bySridhar Sibi
 
DOC
ENERGY CONSERVATION report By EE-63
byDinesh Kumar
 
PPTX
Waste Plastic to Oil Conversion
byAjjay Kumar Gupta
 
PPT
Geothermal Energy
byPadarabinda Parida
 
PPTX
biomass energy
byDivy Kumar Gupta
 
PPTX
Hydrogen: The Future Fuel
byMahmud Hasan
 
PPTX
Green hydrogen technology.pptx
byHemchandMore1
 
DOCX
Plastic waste into fuel using pyrolysis process
byAglaia Connect
 
PPTX
National energy policy ppt
byghildiyal8811
 
PPTX
MSW to Energy - Ravi Kant
byRavi Kant
 
PDF
Pyrolysis renewable energy resources
byDrBilalAhmadZafarAmi
 
PPTX
Renewable-Energy-PP.pptx
byBeuun1
 
PPSX
Energy from biomass
byruma11
 
PPTX
Renewable energy
byMd. Towhidur Rahman
 
PPT
Wind Resource Assessment
bymtingle
 
PPT
Renewable And Non Renewable Sources Of Energy
byoneworld.abhiraj
 
PDF
Biodiesel
byKhawar Nehal khawar.nehal@atrc.net.pk
 
PPT
Biomass energy
bySmk Xlr
 
PPTX
Renewable energy biomass energy
byjay shah
 
Hydrothermal Liquefaction
byMerrick & Company
 
Hydrogen fuel & its sustainable development
bySridhar Sibi
 
ENERGY CONSERVATION report By EE-63
byDinesh Kumar
 
Waste Plastic to Oil Conversion
byAjjay Kumar Gupta
 
Geothermal Energy
byPadarabinda Parida
 
biomass energy
byDivy Kumar Gupta
 
Hydrogen: The Future Fuel
byMahmud Hasan
 
Green hydrogen technology.pptx
byHemchandMore1
 
Plastic waste into fuel using pyrolysis process
byAglaia Connect
 
National energy policy ppt
byghildiyal8811
 
MSW to Energy - Ravi Kant
byRavi Kant
 
Pyrolysis renewable energy resources
byDrBilalAhmadZafarAmi
 
Renewable-Energy-PP.pptx
byBeuun1
 
Energy from biomass
byruma11
 
Renewable energy
byMd. Towhidur Rahman
 
Wind Resource Assessment
bymtingle
 
Renewable And Non Renewable Sources Of Energy
byoneworld.abhiraj
 
Biodiesel
byKhawar Nehal khawar.nehal@atrc.net.pk
 
Biomass energy
bySmk Xlr
 
Renewable energy biomass energy
byjay shah
 

Similar to Energy transition

PPTX
Summary Presentation for The Great Transition: Shifting from Fossil Fuels to ...
byEarth Policy Institute
 
PPTX
The great global energy transition - a report from the front lines as of 31st...
byJeremy Leggett
 
PPTX
A Green New Deal 2018 - energy and jobs in the UK
byJeremy Leggett
 
PPTX
Next steps for the renewable energy industry in the UK: The case of solar
byJeremy Leggett
 
PDF
The Unscientific Fantasy: 100% Renewables
byKarl Pauls
 
PDF
Cleantech Today and The Future
byCascadia Capital
 
PDF
Coalatlas2015
byDr. Karsten Berg
 
PPTX
The Race of Our Lives: A summary of Jeremy Grantham’s seminal note to investo...
byJeremy Leggett
 
PPT
Chris Llewellyn Smith-Can future energy needs be met sustainability?
byFundación Ramón Areces
 
PDF
Rearch on solar panel
byAhmad Syed
 
PDF
IEEE PVSC presentation: Solar PV’s pivotal role in the great global energy tr...
bySolar Molar
 
PPTX
M6A1 Group Project - Alternative Energy Final - 20190616
byChristopherGibson31
 
PPTX
M6A1 Group Project - Alternative Energy - 20190616
byChristopherGibson31
 
PPT
Solar Revolution
byemiliethomas
 
PPT
Sustainable energy for the world
byFundación Ramón Areces
 
PDF
Energy Survey Future Use
byDavid Tennant
 
PPTX
Investment on the global energy transition: a report from the front lines as ...
byJeremy Leggett
 
PDF
USC - John Bryan Energy Storage v2
byJohn Bryan
 
PDF
Investment Case for Solar Energy
bymacsolar77
 
PDF
How Renewables are Winning - Report
byRenewable Choice Energy
 
Summary Presentation for The Great Transition: Shifting from Fossil Fuels to ...
byEarth Policy Institute
 
The great global energy transition - a report from the front lines as of 31st...
byJeremy Leggett
 
A Green New Deal 2018 - energy and jobs in the UK
byJeremy Leggett
 
Next steps for the renewable energy industry in the UK: The case of solar
byJeremy Leggett
 
The Unscientific Fantasy: 100% Renewables
byKarl Pauls
 
Cleantech Today and The Future
byCascadia Capital
 
Coalatlas2015
byDr. Karsten Berg
 
The Race of Our Lives: A summary of Jeremy Grantham’s seminal note to investo...
byJeremy Leggett
 
Chris Llewellyn Smith-Can future energy needs be met sustainability?
byFundación Ramón Areces
 
Rearch on solar panel
byAhmad Syed
 
IEEE PVSC presentation: Solar PV’s pivotal role in the great global energy tr...
bySolar Molar
 
M6A1 Group Project - Alternative Energy Final - 20190616
byChristopherGibson31
 
M6A1 Group Project - Alternative Energy - 20190616
byChristopherGibson31
 
Solar Revolution
byemiliethomas
 
Sustainable energy for the world
byFundación Ramón Areces
 
Energy Survey Future Use
byDavid Tennant
 
Investment on the global energy transition: a report from the front lines as ...
byJeremy Leggett
 
USC - John Bryan Energy Storage v2
byJohn Bryan
 
Investment Case for Solar Energy
bymacsolar77
 
How Renewables are Winning - Report
byRenewable Choice Energy
 

Recently uploaded

PPT
Climate change effects and malaria outbreak.ppt
bysansg312
 
PDF
Environmental Impact Assessment (EIA) Training Guide.pdf
byBaderddineIssam
 
PPTX
Save Water, save life, Water Conservationpptx
byDhurgaKarthi
 
PPTX
Biodiversity- Andaman-nicobar-islands-and-lakshadweep.pptx
byyoshitpandey
 
PPTX
Presentation_2_for_the_Climate_Change.pptx
byLavanyaRanvee1
 
PPTX
PLANT SEEDLINGS: Cox's Bazar Native Species.pptx
byAzrirnAzfar
 
PDF
Emergence of Zero Budget Natural Farming in Himachal Pradesh: Prospects and C...
byAgriculture Journal IJOEAR
 
PDF
Anthony "Tony" Mattei - Passionate About Protecting Ecosystems
byAnthony "Tony" Mattei
 
PDF
Environmental Hygiene Practices | Excellence Foundation for South Sudan
byExcellence Foundation for South Sudan
 
Climate change effects and malaria outbreak.ppt
bysansg312
 
Environmental Impact Assessment (EIA) Training Guide.pdf
byBaderddineIssam
 
Save Water, save life, Water Conservationpptx
byDhurgaKarthi
 
Biodiversity- Andaman-nicobar-islands-and-lakshadweep.pptx
byyoshitpandey
 
Presentation_2_for_the_Climate_Change.pptx
byLavanyaRanvee1
 
PLANT SEEDLINGS: Cox's Bazar Native Species.pptx
byAzrirnAzfar
 
Emergence of Zero Budget Natural Farming in Himachal Pradesh: Prospects and C...
byAgriculture Journal IJOEAR
 
Anthony "Tony" Mattei - Passionate About Protecting Ecosystems
byAnthony "Tony" Mattei
 
Environmental Hygiene Practices | Excellence Foundation for South Sudan
byExcellence Foundation for South Sudan
 

Energy transition

  • 1.
  • 2.
    Contents 1) Changing Direction 2)The Rise and Fall of Oil 3) Closing Coal Plants 4) Nuclear Power in Decline 5) The Solar Revolution 6) The Age of Wind 7) Tapping the Earth’s Heat 8) Hydropower: Past and Future 9) Accelerating the Transition
  • 3.
    Glimpses of theEnergy Transition • South Australia: Wind farms supply more electricity than coal plants • China: Water for 170 million households is heated by rooftop solar water heaters • United Kingdom: For several days in August 2014, wind electricity eclipsed that from coal • Spain: Wind is close to overtaking nuclear power as the leading source of electricity
  • 4.
    Global Annual EnergyGrowth, 2008-2013 0 10 20 30 40 50 60 70 Percent EarthPolicyInstitute-www.earth-policy.org Source: EPI from BP, EIA, and REN21
  • 5.
    Drivers • Economic: Costof renewables falling • Technological: Advances in PV, batteries • Social: Growing opposition to coal and nuclear power • Geological: Remaining fossil fuels harder to access and more costly • Climatic: Carbon emissions destabilizing the climate, threatening civilization
  • 6.
    Climate Disruption • Fossilfuel burning is increasing carbon dioxide (CO2) levels in the atmosphere, raising the earth’s temperature • Continued heavy fossil fuel reliance could raise the global temperature up to 6°C (nearly 11°F) by 2100 260 280 300 320 340 360 380 400 13.4 13.6 13.8 14.0 14.2 14.4 14.6 14.8 1880 1900 1920 1940 1960 1980 2000 AtmosphericCO2(ppm) Temperature(degreesCelsius) Source: NASA GISS; NOAA ESRL; Worldwatch Average Global Temperature and Atmospheric Carbon Dioxide Concentration, 1880-2014 Temperature CO2 Earth Policy Institute - www.earth-policy.org
  • 7.
    2° Safety Limit •The international community agreed to limit warming to 2°C (3.6°F) to prevent dangerous climate change • Higher temperatures: – Melt ice sheets and glaciers – Raise sea level – Increase drought in some areas – Intensify rainfall in others – Cause more-destructive storms Photo Credit: Nomadic Lass (Flickr: Columbia Glacier)
  • 8.
    Stranded Assets • Tokeep global warming to 2°C, most fossil fuels need to stay in the ground • Fossil energy companies will likely lose value • Related infrastructure may also become stranded – Power plants – Coal mines – Pipelines – Coal handling and storage facilities Photo credit: Emily Adams
  • 9.
    THE RISE ANDFALL OF OIL Photo Credit: U.S. Coast Guard
  • 10.
    The Rise andFall of Oil 0 10 20 30 40 50 60 70 80 90 100 1965 1975 1985 1995 2005 2015 MillionBarrelsDaily Source: BP World Oil Consumption, 1965-2013 EarthPolicyInstitute-www.earth-policy.org • Worldwide oil use continues to grow • But “easy oil” is getting tapped out • In some countries, like the United States and Japan, oil use has peaked and is on the decline
  • 11.
    0 5 10 15 20 25 1965 1975 19851995 2005 2015 MillionBarrelsPerDay Source: EPI from EIA EarthPolicyInstitute-www.earth-policy.org Consumption Production U.S. Oil Use Down • U.S. #1 consumer • U.S. oil use fell 8.5% from 2005 to 2014 – People driving less – Better vehicle efficiency – Public transit expanding – Culture change: young people no longer prioritizing cars – Car sharing and bike sharing spreading U.S. Oil Consumption and Production, 1965-2014
  • 12.
    Natural Gas: ABridge to Nowhere • Horizontal drilling and hydraulic fracturing (“fracking”) have created a U.S. oil and gas boom • Methane leaks along the supply chain mean gas may be more climate disrupting than coal • Other concerns: wasted investment in short-term infrastructure; water and air pollution; earthquakes Photo Credit: Bilfinger SE/U.S. Department of Energy
  • 13.
    CLOSING COAL PLANTS PhotoCredit: National Renewable Energy Laboratory
  • 14.
    World Electricity Profile,2012 Coal 41% Natural Gas 23% Hydro 16% Nuclear 11% Oil 5% Wind 2% Biofuels and Waste 1.9% Solar 0.4% Geothermal 0.3% EarthPolicyInstitute-www.earth-policy.org Source: OECD
  • 15.
    Coal: Last Century’sDirty Fuel • Air pollution from coal-burning leads to heart and lung diseases, early death • Leading source of CO2 emissions • Coal-fired power plants require large amounts of water 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 1965 1975 1985 1995 2005 2015 MillionTonsOilEquivalent Source: BP World Coal Consumption, 1965-2013 EarthPolicyInstitute-www.earth-policy.org
  • 16.
    Coal Plants Closing •Lower natural gas prices, air pollution regulations, and local campaigns are closing coal plants across the United States • Of the 523 U.S. coal-fired power plants, 188 have recently closed or plan to close • Australia, Canada, and many E.U. countries have also passed peak coal Coal Consumption in the United States, 1965-2014 0 100 200 300 400 500 600 700 1965 1975 1985 1995 2005 2015 MillionTonsOilEquivalent Source: EIA EarthPolicyInstitute-www.earth-policy.org
  • 17.
    Peak Coal inChina? • China’s coal use: – Exceeds the rest of the world combined – But fell in 2014 for the first time in recent history • Peak coal is near: – Air pollution concerns – Environmental regulations – Wind and solar booming – Improving efficiency – Slowing economic growth – U.S.-China climate agreement 0 200 400 600 800 1,000 1,200 1,400 1,600 1,800 2,000 1965 1975 1985 1995 2005 2015 MillionTonsOilEquivalent Source: BP; NBS Coal Consumption in China, 1965-2014 EarthPolicyInstitute-www.earth-policy.org
  • 18.
    India Coal UseGrowing • Indian government claims to be doubling down on coal, planning hundreds of new plants • How many will be built remains to be seen – Urban air pollution worse than in China – Local opposition to coal – Taxes on coal doubled, partly funding solar development – Solar costs undercut the grid in much of the country 0 50 100 150 200 250 300 350 1965 1975 1985 1995 2005 2015 MillionTonsOilEquivalent Source: BP Coal Consumption in India, 1965-2013 EarthPolicyInstitute-www.earth-policy.org
  • 19.
    NUCLEAR POWER IN DECLINE PhotoCredit: Sandia Science & Technology Park
  • 20.
    Nuclear Power inDecline • Global nuclear generation peaked in 2006 • Peaked in France in 2005; United States in 2010 • Number of operating reactors dropped from high of 438 in 2002 to 390 as of end-2014 0 500 1,000 1,500 2,000 2,500 3,000 1970 1980 1990 2000 2010 2020 Terawatt-hours Source: EPI from BP, IAEA/Chabot World Electricity Generation from Nuclear Power Plants, 1970-2014 EarthPolicyInstitute-www.earth-policy.org
  • 21.
    Costly from Cradle… •Unlike with wind and solar power, building new nuclear facilities has become more expensive over time • Construction delays and cost overruns are typical features of nuclear projects • Of 66 reactors under construction in mid-2014, 49 were behind schedule, including all 5 in the United States and 20 of 27 in China Photo Credit: Wikimedia Commons/ Tennessee Valley Authority
  • 22.
    …to Grave • Costsrising for aging plants— operation, maintenance, fuel • Squeezed by cheap renewables and natural gas, 5 U.S. reactors have retired early since 2013 • Closing is costly: ~$4.4 billion for two California reactors; $130 billion for 4-reactor U.K. site with legacy of weapons-grade plutonium • Nuclear waste disposal problem remains unresolved Photo credit: Wikimedia Commons/awnisALAN
  • 23.
    Fukushima Meltdown HastensDecline • 2011 earthquake/tsunami crippled Fukushima plant, leaked radiation • All Japanese reactors eventually off-line; no nuclear generation since mid-2013, as of early 2015 • Germany, Switzerland, Belgium announced nuclear phase-outs • France cutting nuclear reliance from 75% of electricity to 50% by 2025 Data provided by: Mycle Schneider Consulting www.worldnuclearreport.org
  • 24.
    Low-Carbon, Low-Risk Energy Buildingwind and solar power capacity is quicker and more affordable than building nuclear—without the financial, environmental, and health risks associated with atomic power Photo Credit: Wikimedia Commons/ILIOTEC Solar GmbH; Iberdrola Renewables Inc.
  • 25.
    THE SOLAR REVOLUTION PhotoCredit: Dennis Schroeder / NREL
  • 26.
    The Solar Revolution •Solar PV converts sun’s energy into electricity • Fastest-growing electricity source worldwide • > 50% annual growth 2008–2013 • Can scale up from small rooftop systems to massive utility-scale arrays 0 20 40 60 80 100 120 140 2000 2005 2010 2015Terawatt-hours Source: BP EarthPolicyInstitute-www.earth-policy.org World Solar-Generated Electricity, 2000-2013
  • 27.
    Solar Beating theGrid • In growing number of markets, solar-generated electricity now cheaper than grid average • U.S. utility-scale PV system costs down ~80% since 2009 • Globally, solar panels cost over $74/watt in 1972 • Mid-2014 price: below 70¢/watt • Innovation and policy drove remarkable price decline Image Credit: Lazard Levelized Cost of Energy for Utility-scale Solar PV Systems in the United States, 2009-2014
  • 28.
    The Utility DeathSpiral • Spread of rooftop PV threatening traditional utility business model – Customers with PV buy less electricity from utility – More PV electricity on grid drives down power prices – Utility forced to raise rates, more people go solar • RWE and E.ON, Germany’s two largest utilities, caught off- guard – Did not anticipate fast rise of solar and wind – Overinvested in fossil fuel and nuclear generation – Now reinventing themselves to survive in new energy landscape
  • 29.
    0 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 2000 2005 20102015 Megawatts Source: EPI from BP, IEA-PVPS Germany Japan U.S. Italy EarthPolicyInstitute-www.earth-policy.org China Solar Goals Expanding • Chinese goal for 2020 was 20,000 MW of PV; then 50,000; now it’s 70,000 MW by 2017 • India was aiming for 22,000 MW by 2022; government indicates new target will be 100,000 MW Cumulative Installed Solar Photovoltaics Capacity in Leading Countries, 2000-2014
  • 30.
    PV Improving Accessto Electricity • For the 1.3 billion people without access to electricity, PV is cheaper than building centralized power systems • India: – Replacing polluting kerosene lamps with PV charging for CFL or LED lamps and a cell phone: 1) lowers monthly outlays, and 2) pays for itself in ~3 years • Bangladesh: – As of 2014, with World Bank help, over 70,000 solar home systems were being installed each month
  • 31.
    Concentrating Solar Power •In CSP systems, mirrors concentrate sunlight to drive conventional steam turbines or engines • By mid-2014, world had 4,100 MW of CSP, mostly in Spain and the U.S. • Thermal storage in molten salts allows for generation after sundown Photo Credit: Sandia National Laboratories
  • 32.
    Solar Water Heaters •Rooftop solar thermal collectors heat water directly • China dominates: enough installed rooftop systems to supply 170 million households • Used in some 85% of Israeli homes • Also popular in Europe (e.g. Germany and Austria) Photo Credit: www.davidlearnschinese.com
  • 33.
    THE AGE OFWIND Photo Credit: Wikimedia Commons/Drenaline
  • 34.
    The Age ofWind • Wind is abundant and widespread • Wind farms are easily scalable, and increasingly cheap • Nearly 370,000 MW installed in some 90 countries produce enough electricity to power 90 million U.S. homes 0 100 200 300 400 500 600 700 1985 1990 1995 2000 2005 2010 2015 Terawatt-hours Source: BP World Wind-Generated Electricity, 1985-2013 EarthPolicyInstitute-www.earth-policy.org
  • 35.
    World Wind Leaderboard •In Spain, wind output now exceeds that from coal plants • India targeting at least 60,000 MW by 2022 • Offshore installations expanding; half the world’s capacity in the U.K • Development heating up in Latin America Cumulative Installed Wind Power Capacity in Leading Countries, 1995-2014 0 15,000 30,000 45,000 60,000 75,000 90,000 105,000 120,000 135,000 1980 1985 1990 1995 2000 2005 2010 2015 2020 Megawatts Source: EPI from GWEC, Worldwatch, CREIA, EWEA, BWEA United States Germany Spain China India EarthPolicyInstitute-www.earth-policy.org United Kingdom
  • 36.
    Wind Overtakes Nuclearin China • Wind is now China’s #3 electricity source behind coal and hydro • Wind’s lead over nuclear will grow – Much quicker to build – No water constraints – Wind potential could meet current electricity demand 10 times over – Goal = 200 gigawatts of wind capacity by 2020 Wind- and Nuclear-generated Electricity in China, 1995-2014 0 20 40 60 80 100 120 140 160 180 1995 2000 2005 2010 2015 Terawatt-hours Source: EPI from BP, NEA, CNEA Nuclear Wind EarthPolicyInstitute-www.earth-policy.org
  • 37.
    U.S. Wind Power •China has greater installed wind capacity, but U.S. wind farms generate more electricity • Nine states generate >12% of electricity from wind • In Iowa and South Dakota, the share exceeds 25% • If Texas were a country, it would rank sixth in installed wind power capacity 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 110,000 120,000 130,000 Megawatts Cumulative Installed Wind Power Capacity in Leading Countries and Texas, 2014 EarthPolicyInstitute-www.earth-policy.org Source: EPI from GWEC, AWEA
  • 38.
    42.8 24.1 20.0 18.9 9.4 9.1 8.8 0 10 2030 40 50 Denmark Portugal Spain Ireland United Kingdom Germany Romania Percent Source: Compiled by EPI from Energinet.dk; REN; REE; EirGrid; DECC; BDEW; Transelectrica EarthPolicyInstitute-www.earth-policy.org More Wind on the Grid • European countries dominate in the share of electricity generated from wind farms • Four German states get more than 50% of their electricity from wind • On some days wind power exceeds half of Ireland’s electricity generation Wind Share of Electricity Generation in Leading Countries, 2014
  • 39.
    Wind-Powered Denmark • In1970s, began using electricity taxes to pay for renewable energy R&D • Home to Vestas, world’s #1 wind turbine installer • Got 62% of its electricity from wind in January 2014 • For 2014 as a whole: 40% • By 2016, new wind farms will supply electricity at half the cost of new coal or gas plants • Goal is 50% wind by 2020 Photo Credit: Dirk Ingo Franke
  • 40.
    TAPPING THE EARTH’S HEAT Photocredit: Wikimedia Commons/Gretar Ívarsson
  • 41.
    Tapping the Earth’sHeat • Geothermal resources richest in areas with high tectonic activity • Some 40 countries with 860 million people could meet all their electricity needs with geothermal energy Image Credit: NOAA mod. USGS/Topinka
  • 42.
    Iceland: Geothermal Powerhouse •Space heating: – In 1970, over 50% came from burning oil, 43% from geothermal – Today geothermal heat covers close to 90% • Other direct uses: – Swimming/bathing, fish farming, greenhouse heating, snow melting • Electricity: – 29% of electricity from geothermal, more than any other country – Cheap electricity from geothermal and hydropower allowed Iceland to become a leading aluminum producer Photo Credit: Wikimedia Commons/Bloody-libu
  • 43.
    Geothermal Energy –Direct Use • In China, geothermal district heating rose 5-fold in last decade • Japan has 2,000 spas, 5,000 bathhouses, and 15,000 hotels using nature’s hot water • Ball State University in Indiana expects geothermal heating and cooling to save the school 33,000 tons of coal and $2 million per year 0 2,000 4,000 6,000 8,000 China Turkey Iceland Japan India Italy United States Hungary New Zealand Brazil Megawatts Installed Direct-Use Geothermal Capacity in Leading Countries, 2014 EarthPolicyInstitute-www.earth-policy.org Source: EPI from Lund
  • 44.
    Geothermal Power • Philippines’goal is 3,300 MW by 2030 • Indonesia’s target is 10,000 MW by 2025 • Japan has enough geothermal power potential to meet over half its electricity needs • Enhanced Geothermal Systems technology could lead to some 500,000 MW of geothermal power in the United States 0 1,000 2,000 3,000 4,000 United States Philippines Indonesia Italy New Zealand Mexico Iceland Japan Kenya Turkey Costa Rica El Salvador Nicaragua Megawatts Source: BP EarthPolicyInstitute-www.earth-policy.org Geothermal Electricity-Generating Capacity in Leading Countries, 2013
  • 45.
    Photo credit: GrandCoulee, Farwestern / Gregg M. Erickson via Wikimedia Commons HYDROPOWER: PAST AND FUTURE
  • 46.
    Hydropower Worldwide • Usedin 150 countries • Supplies 16% of the world’s electricity • Global capacity of 1 million MW • Of the world’s 45,000 large dams, 8,600 generate electricity • Pumped storage 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 1965 1975 1985 1995 2005 2015 Terawatt-hours Source: BP, IEA EarthPolicyInstitute-www.earth-policy.org World Hydroelectric Generation, 1965-2013
  • 47.
    • Industrialized country riversnear dam saturation • Lower-income countries still expanding hydro • Race is on to develop remaining hydropower frontiers, including the powerful Congo River and rivers originating in the Himalayas 0 200 400 600 800 1,000 China Canada Brazil United States Russia India Norway Venezuela Japan France Terawatt-hours Source: BP EarthPolicyInstitute-www.earth-policy.org Hydropower Development Hydroelectric Generation in Leading Countries, 2013
  • 48.
    Large Hydropower: aMixed Picture Pros • Abundant energy resource • Renewable • Dams can provide flood control • Can provide irrigation water • Can provide continuous baseload power or quickly ramp on or off Cons • Flooding displaces people, plants, and animals • Weakens river resilience • Traps sediment, shrinking downstream lakes and wetlands • Impedes the movement of fish and other creatures • Reservoirs emit climate- disrupting methane gas • Power distribution required • Expensive: typically >2x original cost estimate, per Oxford study • Long build time; opportunity cost
  • 49.
    Three Gorges Dam •Location: Yangtze River, China • Online in 2003, complete in 2012 • Height: 600 feet • Capacity: 22,500 MW • Annual output: 83 million megawatt-hours – Equivalent to 45 million tons of coal, 12 nuclear reactors • Flooded 244 square miles and displaced 1.4 million people • Total cost could reach $88 billion Photo Credit: Le Grand Portage derivative work: Rehman via Wikimedia Commons
  • 50.
    Hydropower in theUnited States • Supplies 7% of all electricity generation, 51% of renewable generation • Most in Pacific Northwest • Fewer than 3% of the 80,000 U.S. dams generate electricity • Over the last quarter century, nearly 900 U.S. dams have been removed • Powering unequipped dams could ramp up generation Photo credit: Clubber Lang via Flickr
  • 51.
  • 52.
    Saving Energy SavesMoney • Investing in efficiency is less costly than building new generating capacity • Efficiency measures by 11 industrial countries since the 1970s saved $740 billion in avoided energy costs in 2011 alone • A systemic switch from incandescent bulbs to efficient lighting solutions worldwide could allow closure of some 270 coal-fired power plants • Japan’s Top Runner Program is a model for ratcheting up efficiency standards on lighting, electronics, vehicles, and more
  • 53.
    Policy Matters • Artificiallycheap fossil fuels still heavily subsidized • Renewable feed-in tariffs, tax credits, and energy mandates help level playing field • Unpredictable policy environment has led to boom-bust cycle in U.S. wind industry Net Annual Installed Wind Power Capacity Additions in the United States, 1998-2014 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 1998 2001 2004 2007 2010 2013 Megawatts Source: EPI from Worldwatch, DOE, AWEA Production Tax Credit Lapses EarthPolicyInstitute-www.earth-policy.org
  • 54.
    Putting a Priceon Carbon • Can supercharge the transition by systematically pricing carbon to better reflect fossil fuels’ true social and environmental costs • Cap-and-Trade – Regulators set a limit on emissions and polluters can either reduce their emissions or buy permits on the carbon market – EU had first international Emissions Trading System (ETS) • Carbon Tax – Tax levied on each ton of carbon dioxide emitted – Far simpler than cap-and-trade – Potentially revenue-neutral – can be offset by reductions in income taxes
  • 55.
    Carbon Pricing inAction Image Credit: World Bank
  • 56.
    Carbon Tax Successes •Ireland: set carbon tax on natural gas and oil consumption in 2010; by 2013, emissions had fallen some 6% while economy grew • British Columbia: set economy-wide carbon tax in 2008; per person consumption of gasoline and other petroleum products fell 15%, three times the national average, while economic growth has kept pace
  • 57.
    Fossil Fuel Divestment •Campaign is encouraging divestment from coal, oil, and natural gas companies • Rockefeller Brothers Fund’s original resources came from Standard Oil; now ditching all fossil fuel related holdings • Others divesting from all fossils incl.: Guardian Media Group; Syracuse University • Coal focus: World’s largest sovereign wealth fund (Norway); Stanford University Photo Credit: 350.org
  • 58.
    Green Power Purchasing •> 600 entities generate or purchase enough renewable electricity to meet 100% of their needs in U.S.—including Intel, Kohl’s, Staples, Unilever • Google aiming for 100% renewable electricity – Buys staggering amount of wind-generated electricity – Turning abandoned California oil and gas field into an 82-MW solar farm Image Credit: SunEdison
  • 59.
    Renewables Make BusinessSense • Apple’s 25-year, $850 million solar power purchase agreement with First Solar to supply CA operations • Large investment institutions like Morgan Stanley and Goldman Sachs channeling tens of billions of dollars into renewable energy “It’s a business decision. The renewable energy we buy meets or beats prices from the grid.” – Walmart CEO Bill Simon, 2014 • Walmart has 260 PV systems on its U.S. buildings, aiming for 400 more by 2018 Photo Credit: Walmart/Flickr
  • 60.
    Billionaires Betting Bigon Renewables Photo Credit: Todd Spink • Warren Buffett – $15 billion invested in solar and wind by early 2014 – “There’s another $15 billion ready to go.” • Ted Turner – With utility Southern Power, acquired 7 solar PV farms totaling ~300 MW • Philip Anschutz – Will soon have a massive 3,000 MW wind farm under construction in Wyoming to supply CA, NV, AZ
  • 61.
    New Energy Economy •Each country can take advantage of its unique mix of renewable resources • Developing countries may bypass the electric grid and jump straight to distributed solar Photo Credit: Flickr/SELF
  • 62.
    The Future ofEnergy • Unlike fossil fuels, energy from the wind and the sun – is clean – is inexhaustible – the costs are falling fast – the fuel is free Photo Credit: MrRenewables via. Wikimedia Commons
  • 63.
    Energy Independence • Rooftopsolar panels power homes and recharge car batteries, delivering a degree of personal energy independence not known for generations • The old energy economy was tightly controlled by those who held fossil fuel deposits; the new energy economy is much more democratic • Results we can live with: Cleaner air, cleaner water, and a more stable climate