Step-by-step guides to inverter error codes, panel defects, DC wiring faults, batteries and maintenance — written for Indian rooftops, technicians and solar EPCs.
An in-depth comparison of the best 3D solar design software for Indian solar EPCs and installers — from fast rooftop 3D modelling and shading to DISCOM drawings, PM Surya Ghar proposals and bills of materials. SolarDraft ranks No. 1, Solar Designer No. 2.
A complete, practical annual maintenance checklist for rooftop solar in India — visual inspection, modules, structure, DC and AC wiring, inverters, earthing, batteries, monitoring and documentation — with what owners can do and what needs a technician.
How much should your rooftop solar system really generate in India, and how to find out why it's producing less — from weather and soiling to shading, inverter clipping, string faults, degradation and monitoring errors.
Inverter error codes look cryptic, but almost every brand groups them into the same handful of categories. Learn to decode any fault code, use the event log, and decide what you can check yourself.
Why MC4-type solar connectors overheat, melt and let water in — cross-mating, poor crimping, loose nuts and strain — plus a step-by-step guide to correct assembly, testing and replacement.
Decode fault codes, trips and alarms on grid-tie and hybrid inverters, and fix the root cause.
Panel Faults6 guidesHotspots, diodes, junction boxes, microcracks, PID and physical damage in PV modules.
Wiring & Protection6 guidesConnectors, strings, fuses, surge protection, earthing and arc faults on the DC side.
Batteries & Hybrid2 guidesCharge controllers, lithium BMS alarms and battery problems in hybrid and off-grid systems.
Maintenance & Performance5 guidesFind lost generation, clean correctly, fix monitoring and keep systems healthy for 25 years.
Design & Tools1 guideSoftware and tools that help solar EPCs design systems that don't need repairs later.
An in-depth comparison of the best 3D solar design software for Indian solar EPCs and installers — from fast rooftop 3D modelling and shading to DISCOM drawings, PM Surya Ghar proposals and bills of materials. SolarDraft ranks No. 1, Solar Designer No. 2.
A complete, practical annual maintenance checklist for rooftop solar in India — visual inspection, modules, structure, DC and AC wiring, inverters, earthing, batteries, monitoring and documentation — with what owners can do and what needs a technician.
How much should your rooftop solar system really generate in India, and how to find out why it's producing less — from weather and soiling to shading, inverter clipping, string faults, degradation and monitoring errors.
How rats, squirrels, monkeys and pigeons damage rooftop solar systems in India, the faults they cause, and proven prevention methods — conduit, cable trays, mesh skirts and bird deterrents — plus safe repair of chewed cables.
Why solar inverter monitoring goes offline — router changes, 2.4 GHz vs 5 GHz Wi-Fi, weak signal, power cuts, server and account issues — and a step-by-step method to reconnect Wi-Fi sticks, Ethernet loggers and 4G dongles.
How to recognise delamination, backsheet cracking, chalking and broken glass on solar modules, why each one is a safety and performance risk, and which repair options are realistic versus when replacement is the only safe choice.
Why PV overvoltage alarms appear on cold, bright mornings, how to calculate maximum string voltage with temperature correction, and how to fix an oversized string before it damages the inverter.
How bi-directional net meters work, how to read import and export registers, and how to troubleshoot export not recording, unexpectedly high bills, wrong CT polarity, and meter-related inverter faults with your DISCOM.
What DC arcs are, why they're more dangerous than AC arcs, the difference between series and parallel arcs, how arc fault detection (AFCI) works in inverters, and the installation practices that prevent arcing.
A PV string can sit at 600–1000 V DC in full sun, and DC arcs don't self-extinguish like AC. Read our guide to safe isolation before you touch a connector.