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This Week in Indian Solar & Inverter
01
PM Surya Ghar crosses 1 crore registrationsIndia's rooftop solar subsidy hits a historic milestone, pushing residential solar demand to record highs.
Source: MNRE, 2026
02
Lithium battery prices fall 18% YoY in Indian retailLFP cell cost decline accelerates as Chinese supply glut meets growing Indian demand for home energy storage.
Source: Market Intelligence, 2026
03
10 Indian states mandate solar+storage in new housingState-level mandates drive BESS adoption; Rajasthan and Gujarat lead with 2 kWh minimum requirements.
Source: State Electricity Commissions, 2026
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State-wise
PolicyMNREMay 3, 2026
MNRE extends PM Surya Ghar Yojana deadline to March 2027, adds ₹500 crore to subsidy corpus
Extension signals slower uptake in Tier 2 cities; additional corpus ring-fenced for states with <20% penetration. Installers should expect revised DISCom portal timelines.
MarketMercom IndiaMay 2, 2026
Waaree and ACME sign 1.2 GWh BESS supply agreement for Rajasthan grid — India's largest standalone storage deal
LFP chemistry at ₹32/Wh including BOS — a new benchmark for utility-scale storage pricing in India.
TechnologyBISMay 2, 2026
BIS finalises IS 16270 Part 2 — new lithium battery safety standard for inverter applications, mandatory from Oct 2026
Covers thermal runaway protection, cell-level fusing, and BMS communication requirements. Brands without certification by October face import restrictions.
FinanceET EnergyworldMay 1, 2026
GST Council approves 5% rate on residential solar+BESS combo systems, down from 12% — effective July 2026
Reduction applies only to integrated solar-plus-storage systems sold as a unit; standalone batteries remain at 18%. Expect EPC quote revisions over the next 4–6 weeks.
State-wiseRajasthan DISCOMApr 30, 2026
Rajasthan mandates 3 kWh minimum BESS for all new residential solar installations above 5 kW from June 2026
First Indian state to mandate residential storage; policy aims to shift daytime solar generation to evening peak demand. Net metering rules amended accordingly.
MarketJMK ResearchApr 29, 2026
India's residential lithium inverter market grows 87% YoY in Q1 2026 — LFP captures 63% share
Lead-acid still dominates overall volume but lithium is winning in the 2–5 kVA home segment. Su-Kam, Luminous, and Nexcharge lead the LFP category by unit shipments.

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📚 Knowledge Base Spotlight

Evergreen guides that earn links and rank for years — always source-cited

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01

UPS vs Inverter — What Is the Actual Difference? Updated

Switching time, waveform types, battery chemistry, and which one suits your use case.

02

PM-Surya Ghar Yojana — Eligibility, Subsidy Math & Application Walkthrough

Step-by-step guide with subsidy slabs, state-wise DISCom links, and required documents.

03

Battery Chemistry — Lead-Acid vs Li-ion vs LFP 2026

Cycle life, DoD, temperature sensitivity, and 10-year TCO with Indian price benchmarks.

04

Net Metering Across Indian States — The Master Table

Import/export tariffs, capacity limits, and application processes for all 36 states & UTs.

05

How to Size a Rooftop Solar System from Your Electricity Bill

A 6-step method using only your monthly bill with three worked city examples.

06

On-Grid vs Off-Grid vs Hybrid Solar — Which Suits You? New

Plain-English decision framework with payback comparison for four Indian city profiles.

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Net Metering Tracker

State-wise net metering rules, export tariffs and application process.

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Glossary

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The Weekly Indian Solar & Inverter Digest

"What changed in Indian inverter and solar this week" — 6 to 8 curated items, 200 words of context. Every Sunday morning.

🏆 India's Solar & Inverter Pioneers

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Kunwer Sachdev

Founder, Su-Kam Power Systems

Built India's first 3-phase solar inverter. Pioneered lithium inverter adoption. 30+ years shaping the power backup ecosystem.

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Dr. R.K. Pachauri

Former TERI Director & IPCC Chair

Laid the policy intellectual groundwork for India's renewable energy transition through decades of research and diplomacy.

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Tulsi R. Tanti

Founder, Suzlon Energy

Transformed a textile company into India's largest wind energy company — proving Indian entrepreneurs could lead global clean energy.

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Ajay Kumar Kashyap

Former CMD, IREDA

Steered India's renewable energy financing through its most critical growth decade, building IREDA into the primary green finance institution.

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