Las Vegas-based NV Energy announced three new renewable energy projects that will be combined with energy storage technology. The projects are expected to enter service by 2023 and are part of the utility's plan to double its renewable-generating capacity by then.

The new projects include the following.

Arrow Canyon Solar Project: A 200 megawatt (MW) solar photovoltaic project with a 75 MW, five-hour battery storage system. It is being developed by EDF Renewables North America.

Southern Bighorn Solar & Storage Center: A 300 MW solar array that includes a 135 MW, four-hour, lithium-ion battery energy storage system. It is being developed by 8minute Solar Energy.

Gemini Solar + Battery Storage Project: A 690 MW solar photovoltaic array coupled with a 380 MW AC battery storage system. It is being developed by Quinbrook Infrastructure Partners in collaboration with Arevia Power.

By coupling solar facilities with energy storage, electricity produced during peak solar hours can be dispatched later in the day, better balancing electricity generation and demand. Energy storage also can manage evening energy ramps, mitigate curtailment and provide grid stability. In some instances, energy storage along with renewable generating resources close to load centers can defer or eliminate the need for transmission system upgrades. The combination is opening opportunities for microgrids to expand and challenge the century-old transmission grid.

NV Energy will seek approval for the three projects from the Public Utilities Commission of Nevada. They will be added to its most recent integrated resource plan.