BESS Calculator

BESS Calculator is a preliminary sizing and financial modeling tool built for developers, EPC contractors, engineers, and investors working on battery energy storage system projects. It turns a rough project idea into structured technical and cost estimates in minutes, so you can move faster into your next detailed feasibility study. WHO IT'S FOR Whether you're preparing an early-stage bid, scoping a site, evaluating a hybrid opportunity, or sanity-checking assumptions before a meeting, BESS Calculator gives you a structured starting point instead of a blank spreadsheet. TECHNICAL DESIGN & CAPEX Enter your target power, discharge duration, and site conditions to get an initial DC capacity estimate, container and inverter sizing, land footprint, and a full EPC CAPEX breakdown covering battery, power conversion, balance of system, substation, transmission, and land costs. Choose between a…