Energy Storage

Pumped Storage Hydropower: Why New Plants Are Rarely Built in Deregulated Markets

Why do pumped storage plants struggle in deregulated markets? Civil construction costs, uncertain price spreads, and rate-base recovery shape the case.

How Grid-Scale Batteries Make Money: The Markets from Regulation to Black Start

How do batteries make money beyond arbitrage? This guide explains regulation, reserve, voltage support and black-start revenue, plus duration limits.

Long-Duration Storage Technologies: Comparing Flow Batteries, Iron-Air, and Hydrogen

How do flow batteries, iron-air and hydrogen differ? Compare efficiency, duration, land use, infrastructure and the market conditions shaping each option.

The Day-to-Day Economics of Battery Storage: Stacking Revenue Streams

Discover how battery storage revenue stacking works: arbitrage, frequency response, and capacity payments combine to make grid-scale batteries profitable.