California Independent System Operator (CAISO)

Utility-Scale Batteries Are More Commonly Used For Price Arbitrage

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]

More Bright Green, Clean Energy For Deep Red State

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.

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]

What Does Western Grid Regionalization Mean for California?

California’s grid reliability struggles have intensified in recent years as extreme summer heat strains the system and threatens power outages. The state’s grid reliability is also inextricably linked to issues of improving energy affordability and achieving California’s ambitious clean energy goals. With California’s power woes apparent, Western grid regionalization has … [continued]