Call Us
Multi-brand solar, battery and water heating solutions for homes and businesses across Trivandrum and Kollam.
Call Us
Send Email
Location
There is no single best solar company in Kerala, and any firm that tells you otherwise is selling rather than advising. What there is, is a set of checks that separate an installer who will still be answering the phone in year six from one who will not. Here are the nine we would apply ourselves.
This is the check most people skip, and the one that costs the most later. Panel, inverter and battery warranties are honoured by the manufacturer, not the installer - and a manufacturer will ask who supplied the equipment. Buy through an unauthorised reseller and a warranty claim in year four can become your problem rather than theirs. Ask which brands they are authorised for, and ask to see it in writing.
Empanelment under the Ministry of New and Renewable Energy is not a marketing badge - it governs who may carry out installations that qualify for subsidy support, and it sets a standard for the work itself. If a quote is materially cheaper than the others, this is one of the first places to look for the difference.
A quote should name the panel make, model and wattage, the inverter make and model, the mounting type, and the cable, earthing and surge protection. A single figure with "solar system" beside it hides substitutions: the panels that arrive need not be the panels you were shown. An itemised quote is also the only way to compare two companies honestly, because you can see what differs rather than guessing.
For an on-grid system, net metering is what makes the economics work - it is not optional paperwork. Ask whether the interconnection application and approvals are part of the installation or something you chase yourself. The utility sets its own schedule for fitting the meter, which no installer controls, but coordinating the process is squarely their job.
Ask specifically: does the quoted price include the net meter application, or is it billed separately afterwards?
Correct sizing comes from your connected load and how much of it runs during daylight, not from roof area alone. A proper survey looks at shading through the day - a coconut palm, a parapet, a neighbour’s water tank - because shade on one part of a string affects more than that one panel. If a company quotes a system size over the phone without seeing the roof, they are guessing and you are carrying the risk.
These are genuinely different products. On-grid is the cheapest per unit generated and gives you net metering credit, but it shuts down in a power cut. Hybrid adds batteries and keeps selected circuits running through an outage, at a higher cost. Off-grid suits places the grid does not reach reliably. An adviser explains the trade-off against your outage frequency; a salesperson names whichever one carries the better margin.
Kerala asks more of a mounting structure than most places. Monsoon wind loading and salt-laden coastal air both attack fixings, and a tiled roof, a concrete terrace and an elevated frame are three different engineering problems. Ask what the structure is made of, how it is fixed, and what the earthing and surge protection arrangement is. On a coastal site this is a specification question, not a detail.
Solar warranties are routinely quoted as one impressive number. They are not one thing. A panel carries a product warranty, covering manufacturing defects, and separately a linear performance warranty, covering how much output it should still deliver years in - the second is usually far longer than the first, which is why the big number gets quoted. Inverters and batteries carry their own terms again. Ask for all of them.
A solar system is a fifteen-year-plus relationship, and the question is whether service is handled by the company that installed it or subcontracted to whoever is available. Ask who does the annual maintenance, how you raise a fault, and whether the people who fitted it are the people who return. Then ask to see installations they have done near you - a company working in your district can usually point at several.
Every check above is one you can put to any company, including us. Soltech Power Solutions is an authorised dealer for both V-Guard and Luminous, which is why we can size a system to your roof rather than to one brand’s catalogue; installation is by MNRE-empanelled technicians; net meter coordination is part of the job; and after-sales is handled by the same team, not a subcontractor.
On the last check - seeing the work - our completed installations are documented with the location and the date each one was commissioned, so you can ask to see something near you rather than take it on trust.
Get at least two itemised quotes. Compare the equipment line by line rather than the totals. Confirm in writing what is included - net metering, structure, earthing, surge protection, commissioning - and what is not. A company confident in its work will not mind the questions, and one that minds them has told you something useful.
More on solar installation in Trivandrum, solar installation in Kollam, or see our completed installations.
