CCS355 Neural Network & Deep Learning UNIT III notes and Question bank .pdf
Solar energy
1. India’s Renewables Investment in 2016 = Cost Of11 Coal-Fired Power Plants
A week after US President Donald Trump accused India–falsely,as Factchecker reported on June 2, 2017–of being free
to add as many coal-fired power plants that it wanted, a new global report has recognised India’s effort to increase the
role of renewables in its energy mix.
India now accounts for 5% of the world’s renewable-energy capacity, and the country invested a record $9.7 billion
(Rs 64,990 crore)–the cost of building 11 new coal-fired plants of 1,000 MW capacity–in renewable energy
installations during 2016,according tothe Renewables Global Status Report 2017, released on June 7,2017.
CALCULATING THE COST OF COAL-FIRED POWER PLANTS
It costs roughly Rs 6 crore per megawatt (MW) to build a 1,000 MW coal-fired power plant, according to this 2012 report by the
Central Electricity Regulatory Commission.*
So, here is our calculation:
Total investments in renewables by India in 2016: Rs 64,990 crore ($9.7 billion)
Cost per MW: Rs 6 crore
Cost of 1,000 MW coal fired plant: 6 x 1000 = Rs 6,000 crore
Coal fired plants that can be built= Rs 64,990 crore/Rs 6,000 crore= 10.83 (rounded off to 11)**.
*The report used December 2011 as a base period and included costs for steam generator/boiler island, turbine generator island,
associated auxiliaries, transformers, switchgears, cables, cable facilities, grounding & lighting packages, control & instrumentation,
balance of plant including cooling tower, water system, coal handling plant, ash handling plant, fuel oil unloading & storage,
mechanical miscellaneous package, switchyard, chimney and emergency diesel generator set.
**Calculations are approximate and are not adjusted to account for cost escalations since 2011.
2. India also ranked fifth globally in direct use of geothermal capacity and sixth in generation of electricity from
biomass, and the renewables sector now employ s 620,000 Indians, said the report, released by REN 21, an
internationalnon-profit working on renewableenergy.
Howev er,India is currently falling behindon its ambitious plan toincrease renewable capacity.
In April 2016, Piyush Goyal, the power and renewable energy minister, reiterated that India’s solar power targets–100
GW by 2022–were achievable, according to this government press release, but an IndiaSpend analysis on January 7,
2017, shows that this expansion is challenged by weakinfrastructure and a lackof cheapfinancing.
To achieve its targets, India must add 130.76 GW of renewable energy over the next six years, an average of 21.7 GW
per y ear or, three times the capacity it added in 2016.
China leads the world in renewables, India no. 5
China leads the world with 28% of global renewable-power capacity, followed by the US, Germany, Japan and India.
The data do not include hydropower because it remains the largest component of renewables capacity and can mast
dev elopments in other renewables technologies.
Of a total renewable power capacity of 2017 Gigawatts (GW) globally, India accounted for 94 GW (5%) in 2016, the
report said. In 2015-16, 5.6% of India’s power-generation came from renewables, according to data presented in the
Rajy a Sabha, Parliament’s lower house,on November 28,2016.
In 2016-17, India’s estimated peak electricity demand of 165.2 GWwas lower than its installed capacity of ov er 300
GW. Coal-fired capacity of ov er 180 GW alone was higher than the peak demand, but the country continues to face
acute power shortages due to coal supply problems, transmission and distribution losses and poor health of power
utilities, IndiaSpend reported on April29,2017.
India has set a target of 175 GW of renewable energy by 2022. Renewables, nuclear and large hydroelectric power
plants–will account for more than half (56.5%) of India’s installed power capacity over the next decade (to 2027),
according to a draft of the third National Electricity Plan (NEP3) released in December 2016, IndiaSpend reported on
April 19,2017.
Source: Renewables Global Status Report, 2017
India has world’s seventh-largest solarphotovoltaic, fourth-largest wind power capacity
In solar photov oltaic (PV), India ranked fourth globally for additions and seventh for total capacity of 9.1 GW, the
REN 21 report said.
Tamil Nadu accounted for nearly 1.6 GW, more than any other state, followed by Rajasthan (1.3 GW) and Gujarat (1.1
GW). The report observed that demand for large-scale solar projects in India has been driven by rapidly falling prices
combined with policy support nationally and in severalsince 2014.
At an auction in Rajasthan recently, power companies Phelan Energy and Avaada Power each offered to charge Rs
2.62 per kilowatt-hour (kWh) of electricity generated from solar panels, which is 40% lower than 2015’s lowest
pricing of Rs 4.34 rupees per kWh, as the Guardian reported on May 10, 2017. The cost of coal fired electricity per
KWh ranges from Rs 0.87 toRs 5.29, IndiaSpend reported on May 29,2015.
“India’s rooftop solar market has expanded significantly in recent years but accounted for only about 10% of the
country’s solar PV capacity at the end of 2016 and financial, regulatory and logistical challenges have hindered
growth, and India remains a long way from its rooftop target of 40 GW by 2022,” saidthe report.
In wind power, with a capacity of 28.7 GW in 2016, India ranked fourth in terms of new installations and total
capacity. However, this increase was attributed to a rush to take advantage of incentives that were set to decline or
expire in early 2017,the REN 21 report noted.
Solar and wind energy projects in India are expected to attract investments of $20 billion each year until 2018 -
1 9,according to the Indian Renewable Energy Development Agency, IndiaSpend reported on March 4,2016.
3. India’s renewable energy employs 0.62 million, fourth-largest inthe world
Globally, the renewable energy sector employed 9.8 million people in 2016, of which India accounted for 0.62 million
(6.3%), equivalent tothepopulation of Sikkim andfourth-highest among all countries.
Of these 0.62 million jobs, 0.24 million were in hydropower, followed by solar PV (0.12 million) and biogas (0.085
million). Renewable energy jobs are expected to employ ov er a million Indians by 2022, IndiaSpend reported on May
22, 2015.
NOTE: Figures for 2016
Source: Renewables Global Status Report, 2017
Investments in renewable energy remain stable
Renewable energy investments in India increased by 1%, from $9.6 billion (Rs 64,320 crore) in 2015 to $9.7 billion
(Rs 64,990 crore). As much as $5.5 billion (Rs 36,850 crore) was invested in new solar -power capacity, and $3.7
billion (Rs 24,790 crore) was invested in wind power during 2016. The rest $ 0.5 billion(Rs 3350 crore) were invested
in other technologies.
India needs $100 billion in asset financing for renewable energy over the next six years, according to this report from
Bloomberg New Energy Finance (BNEF),a London-based energy consultancy.
Source: Renewables Global Status Report, 2017
Apart from China, India was the only Asian country with concentrated solar thermal power installations under
construction by the end of 2016,the report said.
[Source:http://www.indiaspend.com/cover-story/indias-renewables-investment-in-2016-cost-of-11-
coal-fired-power-plants-60251 ]