CTUIL Revises Benchmark Costs, Land Requirements for Solar, Wind and BESS Projects
The Central Transmission Utility of India has issued an advisory revising benchmark costs and land requirements for RE projects, setting INR 3.5 crore/MW and 3 acres/MW for solar, INR 6 crore/MW and 0.25 acres/MW for wind, and INR 0.80 crore/MWh and 1.2 acres/100 MWh for BESS for financial closure and land compliance under CERC GNA Regulations.
September 05, 2026. By Mrinmoy Dey
Under the revised benchmarks, the project cost for solar has been set at INR 3.5 crore/MW, while the land requirement remains unchanged at 3 acres/MW. For wind projects, the benchmark cost is INR 6 crore/MW, with the land requirement retained at 0.25 acres/MW.
CTUIL, however, clarified that land allocated for wind projects must be suitable for wind turbine generator (WTG) installation, considering the required inter-turbine distance. Accordingly, contiguous land parcels of 0.25 acres/MW will not be accepted as compliance.
For Battery Energy Storage Systems (BESS), CTUIL has set a benchmark project cost of INR 0.80 crore/MWh and a land requirement of 1.2 acres per 100 MWh. The benchmark cost for Renewable Energy Power Parks (RPPD/Parks) remains unchanged at INR 0.5 crore/MW.
The revised benchmarks will be used by CTUIL to verify financial closure and land compliance under Regulation 11A and other applicable provisions of the CERC GNA Regulations. The updated parameters will apply to cases where CTUIL has not yet taken a final decision on acceptance of financial closure compliance.
However, cases where financial closure has already been achieved, or where connectivity has already been revoked on these grounds, will not be reopened or reconsidered under the revised benchmarks.
CTUIL stated that the revised parameters will subsequently be incorporated into the Detailed Procedure governing connectivity and GNA implementation.
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