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
Buyer Guides Articles
Practical buyer guides guidance, analysis and updates for commercial and industrial solar buyers.
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
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
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
Buyer Guides
1 MW Solar Plant Cost in India: 2026 Breakdown
1 MW solar plant cost India 2026: rooftop CAPEX reference of about Rs 2.2 crore ex-GST (Rs 22,000/kW), generation, monthly savings and ~1.4-1.9 year payback.
5 Sept 202611 min read
Buyer Guides
Solar Panel Tilt Angle & Orientation India: By City
Optimal solar panel tilt angle and true-south orientation for India by city and latitude, plus seasonal tilt adjustments and flat-roof mounting guidance.
16 Jul 20267 min read
Buyer Guides
How Much Area for a 1 kW or 1 MW Solar Plant in India?
Rooftop and ground-mount solar area per kW and per MW in India: square feet, square metres and acres, with usable-roof deductions and sizing math.
16 Jul 20268 min read
Buyer Guides
Solar EPC Contract Clauses India: Buyer Guide 2026
Critical clauses for Indian industrial solar EPC contracts: performance guarantees, liquidated damages, ALMM compliance, DLP, and payment milestones 2026.
21 Jun 202614 min read
Buyer Guides
Common Solar Installation Mistakes India: Avoid These in 2026
Top 12 solar installation mistakes Indian industrial buyers make and how to avoid them: ALMM bypass, structure underspec, no PR guarantee, weak O&M 2026.
2 May 202610 min read
Buyer Guides
How to Choose a Solar EPC Company in India: 2026 Buyer Guide
Step-by-step guide to selecting the best solar EPC company in India: 12-point evaluation checklist, red flags, contract clauses for industrial buyers.
2 May 202612 min read
Buyer Guides
How to Read a Solar EPC Quote in India: 2026 Buyer's Guide
Solar EPC quote evaluation checklist for Indian industrial buyers: line items, hidden costs, comparing bids, red flags in low-priced quotes 2026.
2 May 202610 min read
Buyer Guides
How to Size a Solar Plant for Your Factory in India 2026
Step-by-step solar plant sizing guide for Indian factories: load profile, roof area, net metering caps, BESS sizing, oversizing economics 2026.
2 May 202612 min read
Buyer Guides
Solar Finance Options India 2026: Loan vs Lease vs RESCO
Compare bank term loan vs equipment lease vs RESCO/OPEX vs PMEGP for industrial solar in India: cost of capital, IRR impact, tax treatment 2026.
2 May 202611 min read
Buyer Guides
Solar for SME Factories India: Step-by-Step Guide 2026
Solar for Indian SME and MSME factories: cost on Sun Wave's CAPEX reference ladder (Rs 23,000/kW at 100 kW, Rs 22,000/kW at 500 kW), financing, government schemes, cluster RESCO economics and EPC checklist for 2026.
2 May 202610 min read
Buyer Guides
Solar Plant Insurance India: Industrial Buyer Guide 2026
Solar plant insurance for Indian industrial buyers: CAR, WC, 3rd party, special perils, business interruption coverage and provider comparison 2026.
2 May 20269 min read
Buyer Guides
Solar Inverter Selection Guide India 2026: Sungrow vs Huawei
Solar inverter selection for Indian industrial projects: Sungrow vs Huawei vs others, string vs central, PR impact, warranty, and India service network 2026.
2 May 20268 min read
Buyer Guides
Solar IRR Calculation Methodology India: 2026 Buyer Guide
Step-by-step solar IRR calculation methodology for Indian industrial buyers: NPV, payback, levered vs unlevered, sensitivity analysis with worked examples.
2 May 202610 min read
Buyer Guides
Solar Net Metering Application India: Step-by-Step 2026
Complete net metering application process for industrial solar in India: documents, DISCOM portals, timelines, common rejections, and how to expedite 2026.
2 May 202610 min read
Buyer Guides
Solar O&M Seasonal Best Practices India: 2026 Operator Guide
Seasonal solar O&M best practices for Indian industrial plants: pre-monsoon prep, summer cleaning, post-monsoon inspection, winter haze management 2026.
2 May 20269 min read
Buyer Guides
Solar Safety Standards & IS Codes India: 2026 Compliance Guide
Solar installation safety standards for Indian industrial sites: IS-12930 fire safety, IS-3043 earthing, IS-2062 structures, IEC 61727 anti-islanding 2026.
2 May 20269 min read
Buyer Guides
Solar Warranty Management for Indian Industrial Buyers 2026
Managing solar warranties for Indian industrial plants: 25-year module, 10-year inverter, BESS warranty, claims process, and what to watch in EPC contracts.
2 May 20268 min read