Sun Wave Knowledge Centre
Practical guides guidance, analysis and updates for commercial and industrial solar buyers.
Before rooftop solar: IS 875 load checks, 17-25 kg/m2 array loads, wind uplift as the governing case, structural stability certificate requirements, costs and retrofit economics.
1 kW solar generates about 4.0-4.4 units per day annualized in Delhi-NCR, Haryana, UP and Rajasthan - roughly 1,400-1,600 units/kWp a year with strong seasonality. City norms, seasonal table and PR discipline.
CEA's 2026 BESS safety standards, VGF status, the proposed ALBM battery list and Rajasthan's behind-the-meter BESS rules for C&I solar-plus-storage buyers.
Open-access and captive users face a 35.95% Renewable Consumption Obligation in FY2026-27, with a distributed RE carve-out. Shortfall reports due 31 Dec 2026.
NPCL rooftop solar for Greater Noida factories: UPERC net billing (not net metering), 2 MW cap, Solar Injection Compensation, fees and FY 2026-27 tariffs.
RERC DREGS 2021 net metering/net billing for Rajasthan factories: 1 MW cap, 100% sanctioned load, 80% DT rule, export settlement and the 2025 VNM/GNM amendment.
115BAA keeps the 40% solar accelerated depreciation but drops the 20% additional depreciation. Old regime vs 22% regime worked example on a ₹1 Cr plant.
Delhi C&I rooftop solar: DERC net metering (July 2026 rules), ₹1/kWh GBI for C&I, group/virtual net metering, green open access at 100 kW, and realistic ROI.
Gurugram factory solar: DHBVN HT tariff ₹6.95/kVAh + ₹290/kVA, HERC net metering cap 500 kW, 90% feed-in settlement, ToD rebates and realistic payback for 2026.
Noida factory solar: NPCL HV-2 tariff with the 10% regulatory discount, UPERC net billing (not net metering), 2 MW cap, data-centre demand and payback for 2026.
UPERC RSPV Regulations 2019 (to the 2025 Third Amendment) for Uttar Pradesh factories: why C&I gets net billing, the 2 MW cap, Solar Injection Compensation and FY 2026-27 tariffs.
Green Energy Open Access Rules 2022 explained: 100 kW eligibility, 15-day GOAR approval, banking, CSS and surcharge caps, and both 2023 amendments for C&I buyers.
MERC net-metering rules for Maharashtra factories: 5 MW cap, FY2026-27 grid support charges, HT tariffs, settlement and MSEDCL application.
GERC net-metering rules for Gujarat factories: capacity caps, FY2026-27 HT tariffs, APPC settlement, DISCOM timelines and BESS mandates.
DERC net-metering limits, FY2026-27 industrial tariffs, DISCOM application timelines, settlement rules and capacity caps for Delhi factories.
RERC net-metering limits, FY2026-27 industrial tariffs, DISCOM application timelines, settlement rules and capacity caps for Rajasthan factories.
Haryana's mandatory rooftop solar rule for commercial buildings with 50 kW+ connected load: 3–5% capacity, net metering, compliance steps and exemptions.
A source-backed solar-plus-BESS business case for Faridabad and Haryana factories: tariffs, ToD limits, demand charges, sizing, safety and payback inputs.
DHBVN net metering 2026: 500 kW cap upheld by HERC, net-meter fees now billed after commissioning, FY27 tariff ₹6.95/kVAh and the full application process.
Industrial solar tax guide for India 2026: 40% accelerated depreciation under Section 32, GST input tax credit, MAT and capitalisation rules for factory owners.
Solar project finance in India: SIDBI 4E & GFS loans for MSMEs, IREDA term loans for C&I, PFC/REC and bank loans — eligibility, LTV, tenure and rates (FY27).
Choosing the right solar provider in Maharashtra for industrial buyers. MSEDCL rules, costs in Pune, Aurangabad, Nashik, and Mumbai industrial belts.
Solar EPC cost per MW in India 2026: Sun Wave CAPEX reference ladder (Rs 23,000/kW at 100 kW, Rs 22,000/kW at 500 kW, 1 MW+ by survey), JMK module prices, BoS breakdown, RESCO vs CAPEX, and how to choose an EPC partner.
Guide to solar monitoring systems for industrial plants in India. Compare SCADA, IoT, and inverter-native platforms for real-time performance tracking.
Optimal solar panel cleaning schedule for Indian industrial installations. Covers frequency, methods, costs, and how cleaning impacts generation.
Calculate your solar panel ROI and payback period for industrial installations in India. Real numbers, case studies, and savings analysis.
How to choose the best solar EPC company in Haryana for your factory. Compare contractors, costs, and what to look for in industrial solar partners.
Calculate your factory's solar savings with our step-by-step guide. Includes formulas, examples, and state-wise tariff data for accurate projections.
Complete guide to industrial solar installation in Rajasthan. Covers state policy, DISCOM process, costs, and why Rajasthan has the best solar ROI.
Complete guide to solar panel maintenance and O&M for industrial installations in India. Cleaning schedules, monitoring, and cost breakdown.
Complete guide to solar financing options for Indian factories. Compare bank loans, leasing, RESCO, and self-funding for industrial solar projects.
Complete guide to solar panel installation for factories in Faridabad, Gurugram, and Delhi-NCR. Local regulations, costs, and DISCOM process.