Industrial rooftop solar array installed by Arrays Ingenieria
Solar Insights 2026

Solar Power in India, Explained

17 in-depth guides from our ex-servicemen-led engineering team on India's solar policy, taxes, schemes, standards and how to build a plant that pays back. Updated for October 2026, every figure linked to its source.

Utility-scale ground-mount solar power plant built by Arrays Ingenieria Latest · Market UpdateIndia's Solar Capacity in 2026: 171 GW and What It Means for Your BusinessMNRE data put India's solar fleet at 171.05 GW on 30 September 2026. Where the growth is, why rooftop and C&I solar are surging, and how to plan a plant in a crowded market.Read the guide

Rooftop solar installation by Arrays IngenieriaTaxGST on Solar in India (2026): 5% on Equipment, About 8.9% on EPC ContractsThe GST Council cut GST on solar devices from 12% to 5% from 22 September 2025. How it applies to modules, inverters and full EPC contracts, what the 70:30 rule means, and how much a plant saves.4 min read · Updated 11 Oct 2026 The Chief Minister of Assam inspects the solar modules at the 595 kWp Koomber Tea Estate plant installed by Arrays IngenieriaPolicyALMM List-I and List-II Explained: The Made-in-India Rule for Solar Modules and CellsMNRE's Approved List of Models and Manufacturers now covers solar cells as well as modules. What List-I and List-II mean, which projects they bind, the exemptions, and how to stay compliant.3 min read · Updated 11 Oct 2026 Solar modules of the 230 kWp ground-mounted plant at Borpatra Tea Estate, Assam, installed by Arrays IngenieriaPolicySolar Import Duty in India (2026): Customs on Modules and Cells, and What Budget 2026-27 ChangedCustoms duty on imported solar equipment was restructured in Budget 2025-26 and adjusted again in Budget 2026-27. The rates, the reasoning, and how they shape module prices and your choice of supplier.3 min read · Updated 11 Oct 2026 Super Smelters 1980.3 kWp industrial rooftop solar plant, West Bengal, installed by Arrays IngenieriaTaxAccelerated Depreciation on Solar in India: How a Business Recovers the Cost FasterOwning your solar plant lets you write it off at 40% a year on the written-down value. How accelerated depreciation works from April 2026 under the new Income-tax Act, the half-year rule, and a worked example.3 min read · Updated 11 Oct 2026 Jay Shree Tea 1 MW ground-mount solar plant at Sonari, Assam, installed by Arrays IngenieriaBusiness ModelsCAPEX vs OPEX (RESCO) Solar: Which Model Suits Your Business?Own your solar plant and keep every unit, or pay a developer per unit with no upfront cost? A side-by-side comparison of CAPEX and OPEX solar, with the numbers that decide it.3 min read · Updated 11 Oct 2026 The AC distribution board of the 230 kWp Borpatra Tea Estate solar plant, Assam; solar work by Arrays Ingenieria (Ingenieria), ex-servicemen-led MSMEGrid & RegulationNet Metering in India (2026): Net Billing, Gross Metering, ToD Tariffs and the Draft 2026 RulesHow your solar plant connects to the DISCOM and how exported units are paid for: net metering, net billing and gross metering, the 500 kW rule, time-of-day tariffs, the draft 2026 amendments, and the step-by-step approval process.3 min read · Updated 11 Oct 2026 Ground-mount solar plant civil works at DCM Textile, Hisar, by Arrays IngenieriaGrid & RegulationGreen Energy Open Access in India: Buy Solar Power from Off-Site Plants from 100 kWCan't fit enough solar on your roof? Green Energy Open Access lets consumers from 100 kW buy power from a solar plant elsewhere. Eligibility, approvals, charges, banking, and the ISTS waiver phase-out.3 min read · Updated 11 Oct 2026 On-grid solar PV project in Assam by Arrays IngenieriaSchemesPM Surya Ghar: Muft Bijli Yojana 2026: Subsidy, Eligibility and How to ApplyIndia's rooftop solar scheme for homes: up to Rs 78,000 central subsidy, support for housing societies, low-cost loans and the national portal. What you get, who qualifies, and the steps from application to subsidy.3 min read · Updated 11 Oct 2026 Ground-mount solar plant at Ramnagar, Uttarakhand; solar work by Arrays Ingenieria (Ingenieria), ex-servicemen-led MSMESchemesPM-KUSUM in 2026: Components A, B and C, New Deadlines and What Comes NextIndia's farm solar scheme: up to 2 MW plants on farmers' land, standalone solar pumps and solarised feeders. What each component offers, the 2026 deadline extensions, and the proposed PM-KUSUM 2.0.3 min read · Updated 11 Oct 2026 The 595 kWp ground-mounted on-grid solar plant at Koomber Tea Estate, Assam, installed by Arrays IngenieriaTea EstatesSolar for Assam's Tea Estates: Policy, Design and Lessons from Our PlantsTea estates are among the best solar sites in India: daytime factory load, diesel back-up to cut and land to spare. Assam's policy, how to design for the plucking season, and what we have learnt building plants from Koomber to Harmutty.3 min read · Updated 11 Oct 2026 Arrays Ingenieria takes the Chief Minister of Assam around the Koomber Tea Estate solar plantBuyer's GuideHow to Choose a Solar EPC and Installation Partner in India: 12 Questions to AskThe partner you choose decides how your plant performs for 25 years. Twelve questions to ask any solar EPC or installation contractor, what good answers look like, and the red flags to walk away from.3 min read · Updated 11 Oct 2026 Sheet-roof solar plant at Balaji Action Buildwell, Sitarganj, Uttarakhand; solar work by Arrays Ingenieria (Ingenieria), ex-servicemen-led MSMESystem DesignRooftop vs Ground-Mount Solar: Which Is Right for Your Site?Use the roof you already have, or build on land? A practical comparison of rooftop and ground-mount solar: cost, space, structure, safety, foundations, approvals and maintenance.3 min read · Updated 11 Oct 2026 Towkok Tea Estate 535 kWp ground-mount solar plant, Assam; solar work by Arrays Ingenieria (Ingenieria), ex-servicemen-led MSMEO&MSolar O&M and Module Cleaning: Protecting 25 Years of ReturnsA solar plant has no moving parts, but it still needs care. Module cleaning, inspections, thermography, inverter and earthing checks, and a practical maintenance schedule that keeps generation where it should be.3 min read · Updated 11 Oct 2026 Earthing and electrical safety works on a solar plant by Arrays IngenieriaStandards & SafetySolar Quality and Safety Norms in India (2026): BIS, the Quality Control Order, CEA and CEIGWhat makes a solar plant compliant in 2026: the BIS Quality Control Order for modules, inverters and batteries, the standards each component should meet, the Electrical Inspector's approval, and site safety.3 min read · Updated 11 Oct 2026 Manjushree Tea Estate 500 kWp ground-mount solar plant, Assam; solar work by Arrays Ingenieria (Ingenieria), ex-servicemen-led MSMEStorageBattery Storage with Solar in India (2026): Mandates, Incentives and When It PaysStorage is becoming part of India's solar story. The two-hour co-located storage advisory for tenders, the viability gap funding for batteries, transmission waivers, the draft rule for large prosumers, and when a battery makes sense for a business.3 min read · Updated 11 Oct 2026 Puja at an inverter of the 230 kWp Borpatra Tea Estate solar plant before the inauguration; solar work by Arrays Ingenieria (Ingenieria), ex-servicemen-led MSMEInstallation & CommissioningSolar Plant Installation and Commissioning: The Complete Step-by-Step ChecklistWhat actually happens between the purchase order and the day a solar plant goes live. Every stage of installation and commissioning, the tests that prove the plant is safe, and the documents you should receive at handover.3 min read · Updated 11 Oct 2026
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