Battery Energy Storage Systems (BESS)

05/19/2025

How Big is a Battery? Understanding Battery Size, Capacity, and Power

Learn what determines battery size, including energy storage capacity (kWh), power rating (kW), charge rate (C-rate), storage duration, and energy density. Understand how these factors impact performance in energy storage systems.

2021.05.21.

What makes a good battery energy storage system?

We’ve talked about the use-cases for battery energy storage systems, but what are the qualities that make one battery energy storage system (BESS) better or worse for a given use-case?

25.08.2025

How Accurate Are BESS FCAS Revenue Forecasts? Lessons from Australia’s Battery Markets

Discover why simplistic BESS FCAS revenue forecasts fail, how to model ancillary services realistically, and what FPP means for battery storage in Australia.