Buyer Guides
DCR vs Non-DCR Solar Panels for C&I Buyers
DCR vs non-DCR modules for Indian C&I factories in 2026: who must use DCR, the ₹8-11/Wp price premium, the 31 Dec 2026 ALMM List-II deadline, and how to choose.
3 Oct 20269 min read
Sun Wave Knowledge Centre
Solar Energy Insights
Guides, case studies, and industry updates to help you make informed decisions about solar energy for your business.
Policy & Regulation
HERC Order: Faridabad Factory Wins Solar Connectivity Fight
HERC's 21 Sept 2026 order granted deemed connectivity to a Faridabad factory's 6 MW captive solar project after HVPNL missed the 30-day deadline — plus a revolving-approval mandate that speeds up every Haryana open-access application.
3 Oct 20267 min read
Buyer Guides
On-Grid vs Off-Grid vs Hybrid Solar for Factories
On-grid vs off-grid vs hybrid solar for Indian factories in 2026: how each system works, real costs, payback with accelerated depreciation, and when a battery actually earns its keep.
3 Oct 20268 min read
Location Guides
Solar for Housing Societies & RWAs in Delhi-NCR
How Delhi-NCR housing societies and RWAs go solar in 2026: PM Surya Ghar ₹18,000/kW subsidy for common areas, Delhi's ₹11,000/kW state top-up, net metering rules by state, costs and payback.
3 Oct 20268 min read
Industry Solutions
Solar for Rice Mills: Costs, Payback & Sizing
Solar for rice mills in India (2026): energy profile of raw vs parboiled mills, real case studies with paybacks of 3-3.5 years, seasonal sizing traps, diesel savings and the Punjab-Haryana-WB opportunity.
3 Oct 20268 min read
Buyer Guides
100 kW Solar System Cost in India (2026)
A 100 kW rooftop solar system in India costs about Rs 23,000 per kW (Rs 23 lakh ex-GST) on Sun Wave's qualifying CAPEX reference pricing. Full cost breakdown, monthly units, savings, payback with accelerated depreciation, and what changes the price.
18 Sept 202611 min read
Buyer Guides
Commercial Solar Cost in India: 2026 Guide
How much commercial solar costs in India in 2026: Rs 23,000/kW at 100 kW and Rs 22,000/kW at 500 kW CAPEX reference pricing, RESCO per-unit rates, open-access landed costs, payback by size band, and what moves the price.
18 Sept 20269 min read
Location Guides
CESC Net Metering Kolkata: C&I Guide (2026)
CESC net metering for commercial & industrial consumers under WBERC Regulation 81 (2025): 500 kW cap, tariffs, online application process, fees, feed-in tariffs above 500 kW, and Kolkata rooftop realities.
15 Sept 20269 min read
Industry Solutions
Solar for Automobile & Auto-Component Industry India (2026)
Auto plants are ideal solar candidates: paint, welding, compressor and HVAC loads overlap solar hours. Examples (Maruti 79 MWp, Tata 17 MWp), sizing, cost and 3-5 year payback explained.
15 Sept 202611 min read
Buyer Guides
Solar Module Efficiency: C&I Buyer Guide 2026
Mainstream 2026 module efficiency by technology (PERC 21.5-22%, TOPCon 22.5-24%, HJT/IBC 23-24%), NREL records vs products, heat coefficients, bifacial reality, and when premium efficiency pays.
15 Sept 202610 min read
Open Access
HERC Green Energy Banking Order Eases Haryana Open Access
HERC's 26 August 2026 order in Petition 34/2026 lets Haryana open-access applicants file banking applications alongside LTOA instead of after it. What the DISPA vs DHBVNL/UHBVNL ruling changes for industrial solar buyers.
10 Sept 20267 min read
Location Guides
KESCO Net Metering for Kanpur Industry: 2026 Guide
KESCO net metering for Kanpur factories: process, timelines, FY 2026-27 tariffs, caps and settlement rules for industrial rooftop solar. A plant-by-plant guide for Kanpur's industrial belts.
10 Sept 20268 min read