SolarTech Pro Calculators
OUR VISION
Why Choose us
We deliver end-to-end strategic support to accelerate solar deployment with technical rigour and financial clarity. We enable clients to navigate feasibility, design optimisation, regulatory compliance, and execution oversight with a data-driven, bankable approach. Our expertise ensures reliable project outcomes, mitigated risks, and long-term asset performance across diverse solar applications.
PV Layout Auto-Fill
Array & String Visualiser
Inverter Sizing & DC/AC Ratio
Energy Yield & PR Estimator
Financial Payback & IRR
Bill Savings & CO₂ Reduction
Comprehensive Solar Consulting Services
For over 15 years, Firstgreen Consulting has led the renewable energy transition through data-driven and technically sound solar advisory. We support corporates, developers, and governments in planning, designing, and implementing solar projects that maximise generation, optimise capital investment, and ensure regulatory compliance.
Our services span the full project lifecycle — from initial feasibility to post-commissioning performance audits. With a portfolio exceeding 1 GW of solar projects across India, Bhutan, Nepal, and Africa, we bring unparalleled expertise in engineering, economics, and sustainability.
Workbook · Chapter 1: Introduction to Solar Photovoltaics
Interactive version of the technician workbook — with quizzes, labs, and mini tools aligned to every section.