In our annual survey of power plant activity, we ask operators of utility-scale batteries how they are using their systems, and one use case is increasingly prevalent: price arbitrage. Arbitrage involves buying electricity when prices are relatively low and selling that electricity when prices are high. Utility-scale battery systems can be … [continued]
Trump or no Trump, a new bidirectional clean energy transmission line is on track for construction to commence this year, connecting wind and solar resources in Idaho, Nevada, and California.
Trump or no Trump, a new bidirectional clean energy transmission line is on track for construction to commence this year, connecting wind and solar resources in Idaho, Nevada, and California.
Last summer, U.S. electricity demand in the Lower 48 states was greatest at 6:00 p.m. Eastern Daylight Time on July 15, 2024, when it reached about 745 gigawatthours (GWh), based on data in our Hourly Electric Grid Monitor. In our analysis, we calculate each day’s peak according to the hour with … [continued]
In the US, the “duck curve” is a California phenomena. It’s a change to the legacy way of operating generation on the grid. The last time there was a signifiant change, and all of this was predicted long before it happened, there was too much solar during the middle of … [continued]
Figure 2. In 2023, average wholesale electricity prices (2023$/MWh) varied strongly by region. Shown are annual average real time electricity market prices based on data from all locational marginal p ce (LMP) nodes in 2023. Energy Markets & Policy Berkeley laboratory
The Renewables and Wholesale Electricity Prices (ReWEP) visualization tool from Berkeley Lab has been updated with nodal electricity pricing and wind and solar generation data through the end of 2023: https://emp.lbl.gov/renewables-and-wholesale-electricity-prices-rewep. ReWEP users can explore trends in wholesale electricity prices and their relationship to wind and solar generation. ReWEP includes … [continued]
The California Independent System Operator (CAISO), the grid operator for most of the state, is increasingly curtailing solar- and wind-powered electricity generation as it balances supply and demand during the rapid growth of wind and solar power in California. Grid operators must balance supply and demand to maintain a stable electric system. … [continued]
The Southwest Power Pool (SPP) uses a more specific alert system than NERC. Source: Southwest Power Pool.
Electricity grid operators often keep a wary eye towards the thermometer, particularly during the summertime danger season, as daily temperatures soar above 90 degree Fahrenheit and heat waves spread around the country. And for good reason: extreme heat events cause a host of reliability issues for the grid. Electricity demand … [continued]
States with decarbonization goals must plan, prepare, and test for long-duration energy storage
Monthly average wholesale electricity prices at selected trading hubs Data source: S&P Global Market intelligence
Average wholesale electricity prices at major trading hubs in the United States rose throughout much of 2022 and were, at times, volatile as a result of extreme weather events. The limited availability of coal to substitute for higher-priced natural gas also contributed to higher electricity prices. Prices at all electricity … [continued]
Promises of India’s Draft Ancillary Services Regulations
