(BRK.A), (BRK.B)
Berkshire Hathaway Energy’s PacifiCorp and NV Energy received combined benefits of $83.65 million from their participation in the Western Energy Imbalance Market (WEIM) during the second quarter of 2023.
In total, the WEIM has generated $798.7 million in benefits in the first half of 2023, and the real-time energy market’s $379.91 million in second-quarter results is attributed to the growing number of participants providing diversity and economical energy transfers replacing more expensive generation.
The WEIM is designed to enable participating entities to buy and sell power close to the time electricity is consumed. With state-of-the art technology, the market finds and delivers lowest-cost resources to meet immediate power needs and manages congestion on transmission lines to maintain grid reliability. It has set a new record of $4.2 billion in cumulative benefits since the market was launched in late 2014.
The WEIM also provides system operators real-time visibility across neighboring grids, resulting in more efficient balancing of supply and demand.
Since 2020, the number of Western EIM participants has doubled to 22, further diversifying energy resources while improving transmission efficiencies and reducing greenhouse gas emissions. The Western Area Power Administration Desert Southwest region, El Paso Electric and AVANGRID Renewables are the WEIM’s newest entities, joining in April 2023. The WEIM now includes portions of Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, Wyoming, Texas and extends to the border with Canada.
The environmental benefits of the market are also noteworthy. With more variable resources such as solar and wind on the grid, excess clean power would typically tend to be curtailed and go unused to keep the grid from becoming overloaded. With greater regional coordination enabled by the WEIM, that clean power can be moved across a large geographic area to displace other resources.
Since 2014, greenhouse gas emissions have been reduced by more than 878,000 metric tons, or the equivalent of taking almost 184,000 passenger cars off the road for one year.
Additionally, grid operators have more resource options for balancing supply and demand, which is particularly helpful during summer evenings when electricity use remains high but solar generation is declining.
© 2023 David Mazor
Disclosure: David Mazor is a freelance writer focusing on Berkshire Hathaway. The author is long in Berkshire Hathaway, and this article is not a recommendation on whether to buy or sell a stock. The information contained in this article should not be construed as personalized or individualized investment advice. Past performance is no guarantee of future results.