Overview
Solar installation and commissioning
Anybody can bolt panels to a roof. Doing it so the plant survives twenty-five Bihar monsoons and two dozen summers takes hot-dip galvanised structures instead of painted angle iron, UV-rated DC cable in conduit instead of loose wire, proper double earthing, and a lightning arrester that is actually connected to something.
Every Apex Solar installation is commissioned against a written checklist — string voltages, insulation resistance, earth resistance, inverter configuration and generation verified against the design before we hand over. You receive that checklist along with your warranty papers.
At a glance
TypicalExact figures depend on your roof, shading and load. We confirm them in writing after a free survey.
What you get
Four things that decide whether this works
Galvanised structure
Hot-dip galvanised mounting engineered for local wind loads, not painted angle iron that rusts by the third monsoon.
Proper DC side
UV-rated cable in conduit, MC4 connectors, correctly rated DCDB and SPDs — the details that prevent rooftop fires.
Tested before handover
String voltage, insulation resistance, earth resistance and generation all measured and recorded.
Trained in-house team
Our own installers, not a subcontracted crew that disappears after the last bolt is tightened.
Questions
About installation & commissioning
Two to four working days for a typical home rooftop system once material reaches the site. Larger commercial plants take one to three weeks depending on size.
No. We use chemical anchors with sealed penetrations, or ballasted structures where the roof cannot be drilled at all. Leak-free fixing is part of the handover checklist.
Our structures are engineered for local wind loads with the panel clamps torqued to specification. Installations we did before the 2020 storms across Darbhanga district came through without damage.
Also from Apex Solar
Other things we do
Residential Rooftop Solar
On-grid, off-grid and hybrid systems sized to your family’s usage, roof and budget — with both the central and Bihar Govt. subsidies applied for you.
Read moreCommercial & Industrial Solar
High-yield plants for shops, schools, hospitals, hotels, cold storages and factories that pay heavy daytime tariffs.
Read moreHybrid & Battery Backup
Save on bills through the day and keep lights, fans, TV and Wi-Fi running straight through a power cut — no inverter, no diesel.
Read moreSolar Water Pumps
Diesel-free irrigation for farmers — submersible and surface solar pumps with guidance on the schemes you can apply under.
Read moreSolar Street & Flood Lights
Automatic all-in-one LED street and flood lights for roads, campuses, gates, factories and villages — no wiring, no meter, no bill.
Read moreSubsidy & Net-Metering Support
Central and Bihar Govt. subsidy applications, document upload, DISCOM liaison, inspection and net-meter installation — all handled by our office.
Read moreAMC & After-Sales Service
Scheduled panel cleaning, health checks, inverter support and quick repairs that keep your plant generating at its rated output.
Read moreNext step
Book a free survey for built to last 25 years
An engineer visits, measures, studies your bills and gives you a written recommendation — system size, generation estimate, payback figure and a full bill of materials.
- Free, with no obligation to buy
- Written estimate, not a verbal promise
- Honest answer if solar is a poor fit for your site
Enquire about Installation & Commissioning
Tell us about your property and we will call you back with a system size and a price.