India's complete
solar glossary.
A curated, India-specific reference of solar terminology — from MNRE policy and DISCOM rules to TOPCon cells, IRR, and inverter clipping. Written by working solar engineers.
Popular solar terms
Accelerated Depreciation lets businesses claim 40% depreciation on solar in year one, dramatically cutting tax. Learn rules, savings, and how to claim AD.
Solar PerformanceAMC (Annual Maintenance Contract) covers scheduled maintenance and minor repairs for residential and small commercial solar. Learn coverage, costs, and types in 2026.
Solar BatteriesBESS (Battery Energy Storage System) stores electricity for later use. Learn how BESS works, chemistry options, sizing, costs, and Indian use cases.
Solar ComponentsBifacial solar panels generate electricity from both faces. Learn how bifacial gain works, best mounting, albedo, and Indian use cases in 2026.
Solar FinanceCAPEX solar means buying and owning the solar plant outright. Learn how CAPEX works, tax benefits, payback, and when to choose CAPEX over OPEX in India.
DISCOM & UtilityContract demand is the maximum kVA a HT or large LT consumer can draw from the grid. Learn how it affects solar sizing, demand charges, and DISCOM bills.
DISCOM & UtilityDISCOMs are India's electricity distribution companies. Learn what DISCOMs do, major Indian DISCOMs, and their role in net metering, solar connections, and tariffs.
DISCOM & UtilityHT (high-tension) and LT (low-tension) connections differ in voltage, tariff, and solar net-metering rules. Learn the difference and impact on solar in India.
Solar ComponentsA hybrid inverter combines solar, battery, and grid functions in one device. Learn how it works, sizing, top brands, and Indian use cases for hybrid solar in 2026.
Solar FinanceIRR is the annualised return on a solar investment. Learn how to calculate IRR, typical Indian solar IRR benchmarks, and what drives IRR higher.
Solar PerformancekW measures power (rate), kWh measures energy (consumption). Learn the difference, why it matters for solar sizing, ROI, and your DISCOM bill in India.
Solar PerformancekWp is the rated DC output of a solar panel or array under Standard Test Conditions. Learn how kWp differs from kW, how it is measured, and what it means for system design.
Browse by category
DISCOM & Utility
14 terms + 8 more →Solar Batteries
7 terms + 1 more →Solar Components
29 terms- ACDB (AC Distribution Box)
- Anti-Islanding Protection
- Anti-Reflective Coating
- Bifacial Solar Panel
- Busbar in Solar Panel
- Bypass Diode
Solar Finance
21 terms- Accelerated Depreciation
- AS-26 Capitalization
- CAPEX Model
- DSCR for Solar Projects
- Escrow Account in Solar PPA
- Group Captive
Solar Installation
8 terms- Balance of System (BOS)
- Ballasted Mounting
- BIPV
- CLU (Change of Land Use)
- Grid-Tied vs Grid-Interactive
- Land Lease vs Purchase for Solar
Solar Performance
38 terms- AI/IoT in Solar Monitoring
- AMC for Solar
- Availability Factor
- Capacity Utilisation Factor
- Comprehensive vs Non-Comprehensive AMC
- DC:AC Ratio
Solar Policy
31 terms- Banking in Electricity
- Central Financial Assistance (CFA)
- CERC
- Cross-Subsidy Surcharge
- DCR
- DRE (Distributed Renewable Energy)
Solar Standards
13 terms + 7 more →Recently updated
ABT meters record energy in 15-minute time blocks for grid-tied utility transactions. Learn how ABT meters support inter-utility settlement and solar grid integration.
Solar FinanceAccelerated Depreciation lets businesses claim 40% depreciation on solar in year one, dramatically cutting tax. Learn rules, savings, and how to claim AD.
Solar ComponentsACDB is the AC-side electrical enclosure between solar inverter and grid. Learn components, protection devices, and sizing for Indian solar plants.
Solar PerformanceAI and IoT enable predictive maintenance, smart monitoring, and optimised solar plant operations. Learn applications and benefits in Indian solar.
Solar StandardsALMM is MNRE's official approved list of solar modules and manufacturers eligible for subsidised projects. Learn what it covers, how to check, and impact on procurement.
Solar PerformanceAMC (Annual Maintenance Contract) covers scheduled maintenance and minor repairs for residential and small commercial solar. Learn coverage, costs, and types in 2026.