Electric Reliability Council of Texas (ERCOT)

A solar mirror faces the New Mexico sunset at the National Solar Thermal Test Facility (NSTTF) at Sandia Labs.

US Grid Operators Kept the Lights on This Summer with More Solar, Storage, & Wind

The demand for electricity is generally at its peak during summer afternoons, when many people use their air conditioners. Until this year, the bulk power system — the network of generators and transmission lines — met this demand through hydropower and fossil fuel generation. What a shift this past summer … [continued]

The beleaguered Texas power grid could get some much-needed help from the proposed Southern Spirit transmission line, except for a monkey wrench thrown into the works by state legislators in Louisiana. Image courtesy of US DOE.

Isolated & Alone, Texas Power Grid Shivved By Louisiana Lawmakers

The beleaguered Texas power grid could get some much-needed help from the proposed Southern Spirit transmission line, except for a monkey wrench thrown into the works by state legislators in Louisiana.

New Analysis Finds Substantial Value of Adding Up to 4-Hour Duration Batteries to Solar Or…

We are pleased to announce a new study that examines the value of adding batteries to wind and solar plants located in areas that face transmission congestion. We examine two types of areas facing transmission congestion. These areas represent portions of Regional Transmission Organizations (RTOs) or Independent System Operators (ISO) territory selected … [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

Exploring Wholesale Energy Price Trends: The Renewables & Wholesale Electricity Prices (ReWEP) Tool, Version 2024.1

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]

Texas Solar Power Growth Changing the Shape of Daily Electricity Supply in ERCOT

The electricity mix of energy sources in Texas, managed by the Electric Reliability Council of Texas (ERCOT) electricity grid operator, changed noticeably in 2023. Although wind power remains the largest source of renewable power in the state, the installation of new wind turbine capacity slowed in 2023, while additions of … [continued]