A two-hour standalone battery moving into execution in Andhra Pradesh, tracked as part of our tender tracker.
Bondada Engineering 225 MW / 450 MWh BESS, Andhra Pradesh
Power
225 MW
Energy
450 MWh
Duration
2.0 h
State
Andhra Pradesh
Discharge signature — short-duration, runs 2h of 8h at rated power
A dedicated subsidiary for a single 450 MWh battery — the ring-fenced SPV structure Indian storage projects increasingly use to raise debt.
pv magazine India ↗What it means
Two hours is the classic peaking duration. A 225 MW / 450 MWh battery is built to absorb the midday solar surplus and discharge it across the evening ramp — not to carry a grid through a still, cloudy night, which is where four-hour and longer systems earn their premium. The duration choice cascades through the whole design: at 2C-equivalent duty the cell count is set by power rather than energy, so the thermal management and the power conversion system, not the cell block, dominate the cost per MWh. That trade-off is the same one we walk through for standalone BESS projects generally.
The corporate step is as informative as the megawatt-hours. Incorporating a separate subsidiary to hold one project is how Indian developers ring-fence a battery’s cashflows so a lender can underwrite the asset on its own merits — the financing shift we track in our note on BESS project finance in India. It usually signals that the project is past the exploratory stage and heading toward financial close.
Andhra Pradesh matters here too: state-level storage procurement and tariff treatment vary widely across India, and a state’s framework decides whether a two-hour battery can actually monetise the evening peak it is designed for. The current position by state is mapped in our India BESS policy overview.
Sizing a two-hour battery for a project of your own? Run the numbers, or talk to our team.