Week of 28 September – 4 October 2026 | By Vipanan Ajin — BESS Research, Garhi Engineering
A landmark week for energy storage across both regions. In India, Adani Green Energy expanded its Khavda BESS to 6.63 GWh — the world’s largest single-location battery storage deployment outside China — while SECI floated one of India’s largest standalone BESS tenders at 800 MW / 3,200 MWh. The Union Cabinet approved a 50 GWh BESS program under Green Energy Corridor Phase-III, and MSEDCL announced results for its 2,000 MW / 4,000 MWh auction with 12 winners. In Southeast Asia, Malaysia’s MyBeST programme (400 MW / 1,600 MWh across four projects) moves toward 2027 COD, the LSS6 tender (1,250 MW / 6,000 MWh BESS) awaits award, and the Philippines and Indonesia saw new project activity driven by data center demand and grid flexibility needs.
6.63 GWh | Operational | World’s largest single-location BESS outside China
Adani Green Energy Ltd (AGEL) has expanded its Khavda, Gujarat BESS to 6.63 GWh, up from 3.55 GWh in June 2026 — making it the world’s largest single-location battery storage deployment outside China. The LFP-based system uses 700+ battery containers with advanced EMS and automated telemetry, integrated with AGEL’s 30 GW Khavda renewable energy park. AGEL is targeting 50 GWh storage over the next five years and 10+ GWh in FY27.
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800 MW / 3,200 MWh | Tender — Pre-bid 7 Oct, bids due 30 Oct 2026
SECI has floated one of India’s largest standalone BESS tenders at 800 MW / 3,200 MWh (4-hour discharge). The technology-agnostic tender uses tariff-based competitive bidding with e-Reverse Auction. It follows SECI’s earlier 500 MW/1,000 MWh and 1,200 MW/4,800 MWh tenders, which saw tariffs of ₹9.3-11.8/kWh and ₹6.27-6.28/kWh respectively. LFP cell prices in China fell to ~US$54.59/kWh in August 2026.
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107.36 MW / 437.49 MWh | Commissioned 30 Sep 2026 | Total operational 4.96 GWh
ACME Solar commissioned two BESS projects in Rajasthan — Neemri, Chittorgarh (53.73 MW / 222.969 MWh) and Kelan, Bikaner (53.63 MW / 214.52 MWh) — bringing its total operational BESS capacity to 4.96 GWh. The projects use LFP batteries from Trina Storage and Narada Power under 3.1 GWh supply deals signed July 2025. They are part of ACME’s 300 MW / 1,200 MWh FDRE project at Bikaner with a 25-year PPA with SJVN.
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50 GWh | Policy — Union Cabinet approved 30 Sep 2026 | Target FY2032-33
The Union Cabinet approved ₹50,000 crore for 50 GWh of BESS under Green Energy Corridor Phase-III, within a total scheme outlay of ₹1,86,405 crore. This is the first dedicated BESS component under the GEC programme, addressing intermittency, transmission congestion, and peak-hour curtailment. It complements the National Electricity Plan target of 47 GW BESS by FY2031-32 and the ₹18,100 crore PLI scheme for 50 GWh ACC battery manufacturing.
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2,000 MW / 4,000 MWh | Auction results announced 18-21 Sep 2026 | 12 winners
MSEDCL announced results for its 2,000 MW / 4,000 MWh standalone BESS auction with 12 winners. Oriana Power was the largest winner at 900 MW / 1,800 MWh (~₹3,870 crore). Tariffs ranged ₹2.38-2.40 lakh/MW/month under a BOO model with 15-year BESPA. The tender included VGF up to ₹1.8 million/MWh and required 6,300 cycles over the contract period. Projects must be commissioned within 18 months of BESPA signing.
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265 MW / 530 MWh | Awarded — SJVN tender | Tariff ₹2.35 lakh/MW/month
NLC India Renewables (NIRL) won the full 265 MW / 530 MWh capacity in SJVN’s Haryana BESS auction at ₹2.35 lakh/MW/month — higher than the earlier ₹1.97 lakh/MW/month for a similar 250 MW/500 MWh project at Panipat. The 2-hour duration standalone BESS will provide on-demand usage for Uttar Haryana Bijli Vitran Nigam (UHBVNL) under a VGF scheme. The tariff increase reflects rising battery costs and market maturation.
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100 MWh (50 MW × 2 hrs) | Tender — bids closed 30 Sep/5 Oct 2026
SECI issued a Request for Selection for 100 MWh (50 MW × 2 hrs) standalone BESS on a short-term basis under tariff-based competitive bidding for “on demand” usage. The RfS was published 28 August 2026. This relatively small, short-term tender may address immediate grid flexibility needs or serve as a pilot for future procurements.
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50 MW / 200 MWh | Tender — EPC turnkey with 15-yr O&M | Bids closed 25 June 2026
NTPC Green Energy (NUGEL) floated an EPC turnkey tender for 50 MW / 200 MWh BESS at Jhansi, Uttar Pradesh, with 15-year O&M. The project requires 25-year design life, minimum 10,000 cycles, and minimum nameplate capacity of 220 MWh for 200 MWh deliverable capacity. It will be integrated with a 100 MW solar plant at 33 kV pooling switchgear. Part of NTPC’s broader storage pipeline including 3,300 MWh at Khavda.
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400 MW / 1,600 MWh | Awarded Dec 2025 | COD 2027 | Four different battery technologies
Malaysia’s inaugural Battery Energy Storage Programme (MyBeST) has four awarded projects, each 100 MW / 400 MWh, totalling 400 MW / 1,600 MWh. The Energy Commission deliberately selected four different battery technology suppliers — HyperStrong, Blueleaf Energy + Universal Peak, ERS Energy (2 slots), and Leader Energy Group — treating MyBeST as a live proving ground under Malaysia’s grid and tropical climate. The programme saw 7x oversubscription (28 bids for 4 slots) and supports the NETR target of 70% renewable energy by 2050.
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1,250 MW / 6,000 MWh BESS + 2,650 MW solar | Tender — award pending | COD no later than end-2029
Malaysia’s sixth Large Scale Solar programme (LSS6) is the first to include battery energy storage. Package 1 (Hybrid): 2,200 MW solar + 1,100 MW BESS (open to all). Package 2 (Hybrid): 300 MW solar + 150 MW BESS (Bumiputera only). Package 3 (Solar only): 150 MW (small Bumiputera). Estimated private investment is RM13-15 billion. Battery costs may face upward pressure as China phases out its 6% VAT export rebate on BESS products by January 2027.
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30 MW / 60 MWh | Contracts awarded | LFP (Sungrow PowerTitan 3.0) | 2-hour system
Shell Energy Philippines has awarded contracts for a 30 MW / 60 MWh BESS in Hermosa, Bataan. Power Dimension Inc. is the EPC contractor, and Sungrow provides the PowerTitan 3.0 LFP-based liquid-cooled battery platform with long-term service agreement and O&M. The 2-hour system will provide grid flexibility and reliability as the Philippines integrates increasing volumes of variable renewable generation.
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800 MWh | Plan — announced 24 Sep 2026 | Data center demand driver
PLN Batam announced plans for an 800 MWh BESS to support data center growth on Batam Island. The plan addresses power reliability and quality needs of data center operations, with Batam emerging as a data center hub supported by new submarine cable systems connecting to Singapore. Indonesia’s national government has announced an 80 GW solar / 320 GWh BESS deployment plan, and Rept Battero opened a lithium-ion cell and BESS manufacturing facility in Indonesia (May 2026) with 8 GWh capacity.
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India Energy Storage Summit 2026 — 22–24 October 2026, India Expo Mart, Greater Noida. Hosted by Solar Media. Covers grid capacity, storage deployment, and market development in India. storageindia.solarenergyevents.com
APRIL 2026 Battery & Energy Storage Indonesia — 22–24 April 2026, JIExpo Kemayoran, Jakarta. 10th edition. Indonesia’s largest trade show for battery and energy storage.
| Region | Headline | Status |
|---|---|---|
| India (Gujarat) | Adani Khavda 6.63 GWh BESS | Operational |
| India (national) | SECI-ESS-IV 800 MW/3,200 MWh BESS tender | Bids due 30 Oct |
| India (Rajasthan) | ACME Solar 107.36 MW/437.49 MWh BESS | Commissioned |
| India (national) | Green Energy Corridor-III 50 GWh BESS | Policy approved |
| India (Maharashtra) | MSEDCL 2,000 MW/4,000 MWh BESS auction | 12 winners announced |
| India (Haryana) | NLC India 265 MW/530 MWh BESS | Awarded |
| India (national) | SECI 100 MWh short-term BESS | Bids closed |
| India (UP) | NTPC Green 50 MW/200 MWh BESS EPC | Bids closed |
| Malaysia | MyBeST 4 × 100 MW/400 MWh | Awarded, COD 2027 |
| Malaysia | LSS6 1,250 MW/6,000 MWh BESS + 2,650 MW solar | Award pending |
| Philippines | Shell Hermosa 30 MW/60 MWh BESS | Contracts awarded |
| Indonesia | PLN Batam 800 MWh BESS | Plan announced |
This roundup tracks utility-scale BESS developments across India and Southeast Asia. Projects are verified against public sources at time of writing. Submit corrections or additions to Vipanan Ajin at Garhi Engineering.
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