EIA Publishes Regional Electricity Supply and Pricing Forecasts Using UPLAN Model

LCG, August 13, 2019--The U.S. Energy Information Administration (EIA) announced that it is revising the presentation and modeling of its forecasts for electricity supply and market hub pricing to better reflect current electricity markets and system operations in the U.S. Beginning with the August 2019 Short-Term Energy Outlook (STEO), the new forecasting approach models electricity markets using the UPLAN production cost optimization software developed by LCG Consulting. EIA uses the solution results provided by this proprietary model to develop the STEO forecasts of monthly electricity generation, fuel consumption, and wholesale prices.

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Dominion Energy Virginia Pursues 500 MW of Renewable Projects

LCG, August 8, 2019--Dominion Energy Virginia announced Monday that it is seeking bids for up to 500 MW of renewable capacity in both 2021 and 2022 to increase its clean energy resources. Dominion Energy stated that it is committed to having 3,000 MW of solar and wind in operation or under development in Virginia by 2022. This near-term step is part of an ultimate company commitment to reduce carbon emissions by 80 percent by 2050 across the 18 states it serves.

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Industry News

CPUC Approves 150-MW solar-Thermal Project in California

LCG, January 25, 2013--The California Public Utilities Commission (CPUC) approved a power purchase agreement (PPA) for PG&E Corp., the owner of California?s largest utility, to receive power from a 150-MW solar-thermal project in California?s Sonoran Desert.

The developer of the Solar Rice Energy Project is SolarReserve LLC., and the term of the PPA is 25 years, commencing June 1, 2016. SolarReserve originally announced the agreement with PG&E in December 2009.

The solar project will be constructed on approximately 1,500 acres of private land near Blythe. The project will use a concentrated solar power (CSP) design with molten salt storage technology from Pratt & Whitney Rocketdyne.

Thousands of mirrors will focus sunlight onto a central tower containing molten salt, which is heated from 500 to over 1,000 degrees Fahrenheit. When electricity is needed, day or night, the high-temperature molten salt flows into the steam generator, as water is piped in from the water storage tank, to generate steam. After the steam is used to drive the steam turbine to generate power, the steam is condensed back to water and returned to the water holding tank, where it flows back into the steam generator when needed.

Once the hot salt is used to create steam, the cooled molten salt is then piped back into the cold salt storage tank, where it will then flow back up the receiver to be reheated as the process continues.

The molten salt system includes as much as 10 hours of energy-storage capability. The estimated cost is approximately $600 million, and construction may begin early next year, according to the CEO of SolarReserve.

In September 2011, SolarReserve began construction in Nevada on a similar project, the 110-MW Crescent Dunes Project, which is scheduled to be completed late this year.
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