Sun Wave Knowledge Centre

Policy & Finance Articles

Practical policy & finance guidance, analysis and updates for commercial and industrial solar buyers.

Group Captive Solar 2026: 26% Equity Guide for North India

How 2026 Rule 3 changes group captive solar: 26% ownership, 51% consumption, proportionality, verification, contracts and North India costs.

11 Jul 202622 min read

Policy & Finance

Solar Carbon Credits India: CCTS Guide for Industry 2026

How Indian industrial solar plants earn Carbon Credit Certificates under India's CCTS. Offset mechanism, registration, trading, and REC vs CCC explained 2026.

21 Jun 202613 min read

Policy & Finance

ISO 50001 and Solar: India's Energy Management Playbook

Solar with ISO 50001 and BEE PAT scheme in India — reduce SEC, earn ESCerts, claim 40% accelerated depreciation, and achieve GreenCo certification 2026.

21 Jun 202615 min read

Policy & Finance

RPO Compliance Guide for Indian Industrial Buyers 2026-2030

India's RPO targets rise to 35.95% in FY2026-27 and 43.33% by FY2029-30. How industrial buyers and captive power operators must comply using solar.

21 Jun 202613 min read

Policy & Finance

Solar RECs: How Indian Factories Trade Green Certificates

Solar REC guide for Indian industrial buyers 2026 — trading on IEX, RPO compliance, REC prices, eligibility, and how to register your solar plant.

21 Jun 202615 min read

Policy & Finance

Solar Accelerated Depreciation in India: Tax Guide 2026

How solar accelerated depreciation works in India for industrial buyers. 40% AD in Year 1, MAT, Section 80-IA, GST input credit explained.

25 Apr 202619 min read

Policy & Finance

India Solar Industry Outlook 2025-26: Key Trends

Analysis of India's solar industry in 2025-26. Covers policy changes, capacity targets, tariff trends, and what they mean for industrial solar buyers.

7 Apr 202611 min read

Policy & Finance

Solar PPA Rates & Tariffs in India (2026): C&I Guide

C&I solar PPA rates 2026: ₹3.5–5.5/kWh rooftop OPEX, ₹3.0–3.5/kWh open access. Compare structures, negotiate terms and understand India's legal PPA framework.

7 Apr 202616 min read

Policy & Finance

Group Captive Solar in India: Complete Guide for 2025-26

Detailed guide to group captive solar power in India. Learn the 26% equity model, CSS waiver benefits, and how to save 35-55% on industrial tariffs.

6 Apr 202611 min read

Policy & Finance

RESCO & OPEX Solar Model in India: Zero Investment Guide

The RESCO or OPEX solar model explained for Indian industries: zero upfront investment, PPA rates by state (Rs 3.5-5.5/kWh), savings of 20-40% from day one, key PPA clauses, and when OPEX solar beats CAPEX ownership.

6 Apr 202611 min read

Policy & Finance

Net Metering Policy in India 2025: State-Wise Guide

Complete guide to net metering policies across Indian states in 2025. Learn eligibility, application process, and benefits for industrial solar.

5 Apr 20269 min read

Policy & Finance

Open Access Solar in India: Complete Guide for Industry

Comprehensive guide to open access solar power for Indian industries. Learn about group captive, third-party, and bilateral open access models.

1 Apr 202611 min read

Policy & Finance

PM Surya Ghar Yojana & Solar Subsidy India 2025 Guide

Complete guide to PM Surya Ghar Yojana, MNRE solar subsidies, and accelerated depreciation benefits for solar in India. Eligibility and process.

30 Mar 202610 min read