Solar EPC
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Solar Consultancy Glossary Project Feasibility & Finance Terms

Definitions of terms related to solar feasibility reports, CAPEX models, NASA meteo-data yield calculations, and financial indicators.

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CAPEX represents the upfront capital expenditure (buying panels, inverters, structure, and installation), while OPEX refers to ongoing operational expenditures (O&M, insurance, cleaning).

Why It Matters

High-quality engineering design and durable BOS elements minimize annual OPEX, which dramatically improves the net payback period and ROI for commercial investors.

DPR (Detailed Project Report)

Solar Consultancy & Feasibility

A complete feasibility report containing technical layouts, irradiation analysis, financial IRR/NPV, bill of materials (BOM), and risk assessment for a proposed MW-scale solar project.

Why It Matters

The DPR acts as the master planning document for stakeholders, lenders, and engineering teams to evaluate structural and financial feasibility.

LCOE (Levelized Cost of Energy)

Solar Consultancy & Feasibility

The average net lifetime cost of generating electricity from a solar asset, calculated as total lifecycle CAPEX/OPEX divided by total estimated lifetime power generation.

Why It Matters

LCOE allows developers and corporations to directly compare solar generation costs against utility tariffs to evaluate grid-parity benefits.

A digital simulation that maps surrounding obstacles (trees, buildings, columns) to calculate the shadow footprint on a solar array throughout all 365 days of the year.

Why It Matters

It identifies shadow-prone zones, enabling engineers to omit panels in low-yield locations, thereby maintaining high efficiency across the entire string.

Solar Irradiation (GHI / DNI)

Solar Consultancy & Feasibility

Global Horizontal Irradiation (GHI) is the total solar energy falling on a horizontal surface, while Direct Normal Irradiation (DNI) measures direct sunlight perpendicular to the sun's rays.

Why It Matters

Accurate irradiation records, gathered from meteorology databases (like Meteonorm or NASA), are the fundamental basis for estimating solar energy generation.

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