⚡ CleanTech & Utility Grid Storage

Polysulfide-Bromide Long-Duration Flow Battery (PSB 40MW / 320MWh) LCOS 2026

Model 40MW / 320MWh ultra-low-cost aqueous sodium polysulfide / sodium bromide redox flow batteries (8-hour duration, low chemical electrolyte cost for multi-day seasonal grid resilience) calculating LCOS.

Underwriting Assumptions

Rated PSB Flow Plant Power (MW)

Discharge Duration (Hours)

Turnkey PSB Flow Stack Capex ($M)

Off-Peak Solar/Wind Charge Price ($/MWh)

Peak Capacity Arbitrage Price ($/MWh)

Annual Full Cycles

Projected Economics

Gross Annual Power Arbitrage Sales

Net Annual Operating Cash Flow

Capital Payback Period