MERC partly allows MSEDCL's plea, approves (with modifications) RfS/PPA for 250+250 MW long-term flexible RE-plus-storage procurement
Petition of MSEDCL Seeking approval for Procurement of Flexible and Schedulable Power from Renewable Energy Sources with Energy Storage facility on Long Term Basis For 25 years from Renewable Sources and Approval of Tender Documents.
MSEDCL sought approval of tender documents (RfS and draft PPA) to procure 250 MW (with 250 MW green-shoe option) of flexible, schedulable power from RE sources coupled with energy storage on a 25-year long-term basis. This was MSEDCL's third attempt; earlier bid documents in Case 167/2019 and Case 18/2022 were returned by MERC for lacking competitive safeguards, analysis and clarity on SCOD, hydro mandate, storage location, minimum bid size and peak-hour definitions.
- Case 86 of 2022 partly allowed; MSEDCL directed to reframe RfS as per Commission's observations and float the tender
- Hydro to remain optional, not mandatory, technology component of bids
- SCOD standardised at 30 months for ALL bidders (not 18 months for non-hydro vs 30 for hydro) to ensure equity
- Minimum bid capacity confirmed at 50 MW (MSEDCL's proposed 100 MW rejected)
- Peak/off-peak nomenclature approved to be renamed 'non-solar generation hours' (00:01-10:00 & 18:01-24:00) and 'solar generation hours' (10:00-18:00)
- Minimum CUF of 19% for solar hours approved (effective combined CUF ~31%, near SECI's 35% benchmark); green-shoe option of additional 250 MW approved
- MSEDCL to revise RfS/draft PPA incorporating all directions in Para 12 (SCOD, minimum bid size, hour nomenclature, CUF) and float the tender
- MSEDCL to use APPC as benchmark tariff for non-solar generation hours; must justify and assess consumer impact if discovered tariff exceeds APPC
- Storage location/transmission charge liability to rest with bidder (power to be supplied at Maharashtra STU periphery)
- Bidder to accept green-shoe option within 7 days of LoA issuance, matching L-1 tariff
- Post-bid, if MSEDCL seeks tariff adoption, petition must include detailed financial-impact and cost-benefit analysis (redoing earlier flawed IEX/MoD-based comparisons)
- MSEDCL to reassess its earlier commercial impact computations (excluding outlier IEX tariffs like Rs.15.27/unit and correcting marginal-cost comparisons) before tariff adoption filing
- • A new 25-year RE+storage procurement route (250-500 MW) will emerge in Maharashtra, potentially opening opportunities for storage-coupled RE developers to bid competitively
- • Technology-neutral bidding (solar/wind/hybrid/hydro optional) with uniform 30-month SCOD widens participation for C&I-linked RE-storage developers
- • Storage capacity is defined in MW (power) terms, not MWh, with only minimum CUF of 19% during solar hours plus 100% dispatch obligation in any 6 non-solar hours - developers must size storage/generation carefully to avoid overbidding and higher tariffs
- • Discovered tariffs will be benchmarked against MSEDCL's APPC; any premium must be justified, signalling MERC's continued cost-scrutiny stance relevant for open-access/RE developers pricing long-term PPAs
This is a procedural go-ahead, not a tariff decision - MERC has cleared MSEDCL to float the tender only after fixing structural bidding flaws (technology neutrality, SCOD equity, min bid size, CUF). Developers should track the revised RfS closely: uniform 30-month SCOD benefits non-hydro/storage bidders, but APPC-benchmarking signals MERC will scrutinise any tariff premium hard at adoption stage. Storage economics (MW vs MWh sizing, 6-hour 100% dispatch flexibility) will be the key bid-design challenge; early movers with proven BESS costing can gain advantage given MERC's openness to promote 'new technologies' despite cost-recovery caution.
Growthifye does not take responsibility for the accuracy of this information. Values are compiled from tariff orders published on the websites of State Electricity Regulatory Commissions and distribution licensees (plus CEA / MoP / Grid-India), parsed automatically and shown with their source. Always verify against the signed order before any commercial decision. This one-pager is a Vidura-assisted summary of the official order; the signed order prevails.
