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A recent study done by NREL in cooperation with both utilities and vendors shows the impact that a higher penetration on wind generation can have on the operation of the gridThe upper left is a typical dispatch curve with no windThe other charts show 10%, 20% and 30% wind penetrationYou can see the huge impact this can have on the operation of base load resources such as coal shown by the grey area.
Steven hauser presentation
A Smarter Grid: Building GRID 3.0<br />Marine Energy and Smart Grid Technology Workshop<br />May 10-11, 2010<br />Steve Hauser<br />VP, Grid Integration<br />[President Emeritus, <br />The GridWise Alliance]<br />
2<br />Electricity System In the News Today<br />"this is the future of the utility."<br />"For the first time in the grid's 100-year history, consumers can understand exactly how much energy they are using and can participate in cost-saving programs,"<br />“You’re going to have more devices hooked up to the grid,” <br />“You have to make sure with these additional connecting points that they’re secure.”<br />
Highly differentiated energy services </li></li></ul><li>5<br />The Grid is Smart when…<br /> … your teenage daughter, who snuck out last night with the PHEV, plugged it in to recharge this morning and pressed “override” on your “smart charger” – paying $1.00 per kWh for daytime electricity. <br /> …luckily, your rooftop PV is providing most of the energy to recharge, and the extra battery in your garage is working overtime to provide regulation services to the utility at a premium rate…resulting in an overall net-zero cost to you.<br />...providing value to the local utility<br />…providing value to the consumer<br />…providing value to the local economy<br />…providing value to the environment<br />
General infrastructure</li></li></ul><li>Source: Semi-Conductor Technologies: The Potential to Revolutionize U.S. Energy Productivity – Rpt E094<br />ACEEE Study on EE Potential<br />Scenarios of US Electricity Growth<br />
Operational Efficiency<br /><ul><li>Automating processes and systems
High RE Penetration Impacts on Operation<br />Western Wind and Solar Integration Study<br />
Accommodating RE Variability<br />8MW connected to substation<br />High Variability due to clouds<br /> Xcel Energy – Alamosa System<br />
Our Vision of a 21st Century Grid<br />A 21st Century Grid must substantially increase the use of existing production assets<br /> Over 1,000 GW of production assets serve our national power needs, but many of these expensive assets are used only a few times each year. Some are almost never used. We must plan, design, build and operate a system that is much more effective at using these assets.<br />A 21st Century Grid must readily accommodate new generation, transmission, distribution and consumer technologies<br /> Our ever evolving digital society is already placing unique and difficult demands on our grid. Growing environmental concerns will drive a diversity of cleaner sources of power. These and unanticipated future needs demand that we plan, design, build and operate a “plug and play” grid that maximizes flexibility, extensibility and adaptability.<br />A 21st Century Grid must actively identify and extract energy efficiency throughout the system<br /> Maximizing energy efficiency from generation to load is critical in meeting our carbon reduction goals. We must plan, design, build and operate a grid that will proactively “mine” carbon throughout, targeting both static and dynamic changes to the system.<br />A 21st Century Grid must be operated in a highly efficient and highly automated manner.<br /> As the grid rapidly increases in complexity, we must plan, design, build and operate a system that is much more automated; sensing changes, responding and adjusting in near real time—eventually becoming an adaptive self-healing system. <br />A 21st Century Grid must be able to highly differentiate the reliability requirements of consumers<br /> Our future, increasingly digital, economy will require higher levels of reliability and power quality. The cost of providing this service will be prohibitive if applied universally. We must plan, design, build and operate a grid that provides for variation in the quality of power while creating a grid that is absolute in providing for critical loads.<br />