Clean Energy Group
Battery energy storage systems can serve as a clean and reliable source of backup power for homes and businesses. When properly installed, battery storage has proven to be a safe technology, and it is becoming safer every year as more protective regulations and best practices are established. However, many communities have raised concerns about battery storage…
Battery energy storage systems can be a cost-effective tool for utilities to meet peak demand and provide flexibility to the power grid. When properly installed, battery storage has proven to be a safe technology, and it is becoming safer every year as more protective regulations and best practices are established. However, many communities have raised…
When Hurricane Ida landed in Louisiana in August 2021, it decimated the area’s energy infrastructure. Over 1 million residents lost power, some for weeks, with outages impacting everything from communications to transportation. CrescentCare, a Federally Qualified Health Center in New Orleans, was forced to close when their backup diesel generators failed to come online. Residents…
Solar combined with energy storage (solar+storage) can provide cost savings and keep essential services powered during grid outages. Clean Energy Group has published a series of short fact sheets answering the following frequently asked questions about solar+storage: These fact sheets are adapted from Clean Energy Group’s 2024 publication, Understanding Solar+Storage: Answers to Commonly Asked Questions…
Green hydrogen and green ammonia are touted as potential replacements for fossil fuels, but their actual environmental benefits are questionable. This fact sheet looks at the risks of hydrogen combustion.
Green hydrogen and green ammonia are touted as potential replacements for fossil fuels, but their actual environmental benefits are questionable. This fact sheet investigates the pros and cons of green ammonia.
In July 2025, Congress acted to accelerate the phase-out of the Investment Tax Credit (ITC), bonus credits and Direct Pay provision. Community-serving solar, wind, and energy storage projects are typically eligible for a 30% baseline credit, available to tax-exempt entites through Direct Pay. This fact sheet provides a timeline for the ITC eligibility of both…
This Direct Pay Fact Sheet details which types of tax-exempt entities are eligible to receive direct pay, outlines the process to receive direct pay, and introduces additional resources.
This fact sheet evaluates the viability of hydrogen as a long duration energy storage (LDES) technology. It examines the costs, efficiency, infrastructure considerations, and potential harms of hydrogen power plants.
Comments on Calpine Sherman Avenue Energy Center Permit Renewal Environmental Justice Impact Statement
CEG’s comments argue that battery storage is technically and financially feasible at Calpine Sherman Avenue Energy Center based on its analysis of the plant’s operations and site, contrary to Calpine’s statements.