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Behind-the-meter BESS for commercial users: payback under 5 years

Behind-the-meter BESS installations for Indian commercial and industrial customers crossed 1.2 GWh in 2025–2026. Payback periods for ToD-tariff arbitrage and demand-charge management now sit at 4–6 years for typical 1–10 MWh installations. The C&I segment is now the fastest-growing storage application in India.

By Arjun Nair··1 min read

In 50 words: Behind-the-meter BESS for Indian C&I customers hit 1.2 GWh cumulative installations by April 2026. Payback periods for typical 1–10 MWh installations are now 4–6 years through time-of-day arbitrage and demand-charge management. C&I BTM is now the fastest-growing storage application segment in India.

The market shape

Indian behind-the-meter BESS installations, cumulative:

  • End-2023: 0.2 GWh
  • End-2024: 0.5 GWh
  • End-2025: 0.9 GWh
  • April 2026: 1.2 GWh

The customer base is dominated by manufacturing facilities (textiles, chemicals, food processing) and large commercial complexes.

Why now

Three things converged:

  1. ToD tariff spreads widened. State utility commissions in Maharashtra, Karnataka, and Gujarat introduced steeper time-of-day tariff differentials in 2024–2025. Peak-vs-off-peak spreads now reach ₹4–6/kWh in some states.
  2. Demand charge management. Maharashtra and Karnataka introduced demand charges of ₹400–600/kVA/month, creating a second revenue stream for BTM BESS that reduces peak demand.
  3. BESS pricing. LFP system pricing at $230–270/kWh installed (Indian market) makes the math work.

Typical payback

For a 5 MWh BESS at a textile facility with ₹5/kWh ToD spread and ₹450/kVA demand charge:

  • Capex: ~₹15 crore ($1.7M)
  • Annual savings: ₹3.2 crore ($380K) from arbitrage + demand management
  • Simple payback: ~4.7 years
  • Levelised cost benefit: ₹2.1/kWh stored

Who's supplying

The Indian C&I BTM market is split between:

  • Tier 1 integrators (Sungrow, Huawei, Delta) for 5+ MWh installations
  • Domestic system integrators (Amplify, Hartek, Cleantech Solar) for 1–5 MWh
  • Battery suppliers: dominantly Chinese LFP cells (CATL, BYD, EVE), packaged in India

What to watch next

The next inflection is solar+BESS bundled offerings for C&I. As C&I customers move from grid-only to solar-PPA contracts, hybrid solar+BESS-PPA offers a single procurement for predictable electricity. Watch for first 25-year C&I hybrid PPAs in H2 2026.

Researched and drafted with AI assistance; reviewed and edited by the named editor within 24 hours of draft.

Sources