Solar & Energy Efficiency
Practical guides from our engineers on choosing, sizing and specifying motors, panels, transformers, batteries, inverters, solar equipment, pumps and cables for Indian industry.
Harmonics and Power Quality: A Guide for Plant Engineers
A plain-language guide to harmonics in industrial plants: where they come from, what they damage, how to measure them and the usual fixes.
6 min readSolar & Energy EfficiencyNet Metering in India: What to Check Before You Apply
Net metering rules for rooftop solar differ by state and DISCOM; here is a checklist of what to confirm before you buy equipment or apply.
6 min readSolar & Energy EfficiencyEnergy Monitoring in Factories: What to Measure and Why
Factory energy monitoring starts with the right measurements: kWh, demand, power factor, load profile and machine-level data. Here is what to measure and how.
6 min readSolar & Energy EfficiencyMPPT vs PWM Solar Charge Controller: Which to Choose
MPPT and PWM charge controllers treat panel voltage very differently; here is how each works, how to size one and which suits your battery system.
6 min readSolar & Energy EfficiencySolar DC Cable Size and Protection Basics for Plants
A practical guide to solar DC cable selection, voltage drop, string fuses, isolators, surge protection and earthing for Indian solar plants.
6 min readSolar & Energy EfficiencySolar ACDB, DCDB and Junction Boxes Explained
Array junction box, DCDB, AC combiner box and ACDB each protect a different stage of a solar plant; here is what they contain and how to…
6 min readSolar & Energy EfficiencyOn-Grid vs Off-Grid vs Hybrid Solar System: How to Choose
On-grid, off-grid and hybrid solar systems differ in batteries, backup and grid dependence; this guide shows which fits your site and what to check.
6 min readSolar & Energy EfficiencySolar System Size for a Shop, Factory or Institution
Estimate solar system size from your electricity bill, daytime load, roof area and sanctioned load, with worked examples for a shop, factory and institution.
6 min readSolar & Energy EfficiencySolar PCU vs Hybrid vs Grid-Tie Inverter: Which to Buy
A plain comparison of grid-tie inverters, solar PCUs and hybrid inverters: what each does, what happens in a power cut, and how to pick for your…
7 min read