SECI launches 1,000 MW/2,000 MWh standalone BESS tender — India's largest
India's biggest standalone battery storage solicitation to date, under tariff-based competitive bidding with 12-year BESPA contracts.
SECI launched a 1,000 MW/2,000 MWh standalone BESS tender (ESS-2) — at the time India’s largest solicitation for standalone battery storage — under tariff-based competitive bidding with e-reverse auction.
Tender details
- RfS: SECI/C&P/IPP/15/0009/24-25, published June 26, 2024
- Capacity: 1,000 MW/2,000 MWh minimum 2-hour discharge
- Model: Build-Own-Operate (BOO), 12-year BESPA
- Bid floor: minimum 50 MW/100 MWh, maximum full 1,000 MW
- Operations: max 2 cycles/day; one full charge window 10am–4pm; no discharge 10am–2pm
- Tariff format: ₹/MW/month quoted in reverse auction
Projects interconnect at the ISTS — 400kV Fatehgarh substation in Rajasthan for ESS-2 — per CERC regulations and grid codes.
Context
The tender followed SECI’s earlier 3 GWh technology-agnostic storage solicitation (won by pumped-hydro player Greenko) and preceded the VGF-supported 4,000 MWh program under the Union Government’s viability gap funding scheme.
What to watch
Battery storage tariffs have been collapsing with LFP prices — watch how this and subsequent VGF-backed rounds price storage on a ₹/MW/month basis.
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