The Midwest ISO models future transmission capacity needs. As part of this effort, it needs 20-year load forecasts that account for demand response (DR) and energy efficiency (EE) activities in the Midwest ISO region and for the Eastern Interconnection. In the past, the Midwest ISO assumed a reduction in sales and peak of 1% per year to approximate savings from DR and EE programs. In light of all the DR and EE activity taking place across the nation, Midwest ISO initiated this study to develop better and defensible estimates of EE and DR for their forecast.
This study develops estimates of DR and EE savings using program information obtained from utilities within the Midwest ISO region. The study uses this information to develop projections of DR and EE savings by program type and according to the taxonomy used to describe resources in the EGEAS model, which the Midwest ISO currently uses for transmission planning studies.

Uploaded: July 28, 2011. Report No. 1314, Global Energy Partners, LLC, Walnut Creek, California, July 2010.

The baseline peak demand forecast, a forecast without future energy-efficiency and demand response programs, increases from 322 GW in 2010 to 452 GW in 2030. This is an increase of 40% and corresponds to an average annual growth rate of 1.7%. Table ES-1 and Figure ES-1 present the baseline forecast as well as peak demand savings from energy-efficiency and demand response programs. Figure ES-2 presents the baseline peak demand forecast, the forecast after savings from DR programs are applied and the reference forecast, which includes savings from DR and EE.
In 2010, the savings are approximately 20.5 GW, or 6.4% of the baseline forecast. By 2020, the savings reach 96.8 GW, or 21.4% of the baseline forecast. Between 2020 and 2030, the savings continue to increase, but at the same rate as growth in the baseline forecast. By 2030, the savings offset 27% of the growth in peak demand. In 2010, demand response programs contribute about 90% of the savings. By 2020, the contribution from EE and DR programs is roughly equal and this continues to the end of the forecast.

Report No. 1314, Global Energy Partners, LLC, Walnut Creek, California, November 2010.

The Energy Storage Study endeavors to test several hypotheses around battery, compressed air, and pumped hydro energy storage. This study will explore reliability, market, and planning benefits. It will seek to determine the economic potential of storage technologies. It will estimate the price inflection point at which energy storage may become economically feasible. Finally, the study will suggest potential MISO energy and operating reserve markets enhancement products, if appropriate.

July 19, 2011.