Frequently Asked Questions About Solar

A solar power system is a set of components — panels, an inverter, mounting structure and cabling — that converts sunlight into usable electricity for your home or business.

Panels installed on your roof generate DC electricity from sunlight, which an inverter converts into AC power for your appliances. Any surplus can be exported to the grid where net metering is available.

Generation depends on system size, panel efficiency, roof orientation, shading and local sunlight hours. As a rough guide, 1 kW of rooftop solar in this region generates roughly 4 units of electricity per day on average, though actual output varies.

A typical residential installation takes 1 to 3 days on-site, followed by DISCOM inspection and net meter activation, which can take a few additional weeks depending on local processes.

Most open, structurally sound and reasonably unshaded roofs are suitable, though roof material, shading, and available area affect the best system size and layout. A free site survey confirms suitability for your specific roof.

Cost depends on system capacity, panel and inverter technology chosen, structure type, and site conditions. Use our homepage calculator for an indicative estimate, and request a formal quotation for exact pricing.

Savings depend on your consumption pattern, tariff, system size and how much of your usage overlaps with solar generation hours. Our calculator provides an indicative estimate based on your inputs.

Key factors include system capacity, panel/inverter brand and technology, roof type and structural work needed, cabling distance, and applicable subsidy, which reduces your net contribution.

Payback period is the time it takes for cumulative electricity savings to equal your net investment (after subsidy, if applicable). This varies by system size, tariff and consumption pattern — typically several years for residential systems, though this is not guaranteed and depends on your specific situation.

Solar typically offsets a significant share of your daytime consumption but usually doesn't eliminate your bill entirely, since night-time and low-sunlight consumption is still drawn from the grid (unless paired with sufficient battery backup).

Eligibility generally depends on property type (primarily residential), having a valid electricity connection, and meeting the current scheme's specific criteria, which can change over time — see our Solar Subsidy page for details.

Commonly required documents include your latest electricity bill, identity proof, proof of property ownership/occupancy, and bank account details for disbursal.

There is no universally fixed timeline — it depends on DISCOM processing speed, application volume, and inspection scheduling. We recommend planning with some flexibility.

No. Subsidy is subject to eligibility verification, DISCOM approval, and inspection outcomes. We do not guarantee subsidy approval — the final decision rests with the relevant government and DISCOM authorities.

The primary central rooftop subsidy scheme is generally targeted at residential connections. Commercial and industrial customers should explore alternatives such as accelerated depreciation — see our Commercial Solar page.

Your local Distribution Company reviews your application, conducts site inspection, approves net metering, and coordinates with the subsidy disbursal process.

Net metering is a billing arrangement where surplus solar power you export to the grid is credited against the units you import later, reducing your net bill over the billing cycle.

An on-grid (grid-tied) system stays connected to the electricity grid, generating power during the day and drawing from the grid when solar output isn't enough — the most common and cost-effective system type.

An off-grid system has no grid connection at all and relies entirely on solar panels plus a battery bank to power your loads, suitable for remote locations without reliable grid access.

A hybrid system combines a grid connection with battery backup, managed by a smart inverter, giving you both ongoing bill savings and backup power for essential loads during outages.

Most homes with reliable grid access choose an on-grid system for its lower cost. Homes wanting backup during outages should consider hybrid; only genuinely off-grid locations need a full off-grid system.

No — for safety reasons, grid-tied inverters automatically shut down during a grid outage (anti-islanding protection). If backup is important to you, consider our hybrid solution.

A battery is required for off-grid systems (mandatory) and optional for hybrid systems where you want backup power for select essential loads during outages. On-grid systems don't use a battery.

Mono PERC offers a strong efficiency-to-cost balance for most rooftops; TOPCon offers higher efficiency and better heat performance at a higher cost; polycrystalline is more budget-friendly with slightly lower efficiency. See our Solar Panels page for a full comparison.

Efficiency is the percentage of sunlight a panel converts into usable electricity — higher efficiency means more power generated from the same panel area, which matters most when roof space is limited.

Inverter capacity (in kW) indicates how much power the inverter can convert at once, and is generally matched closely to your total panel array size during system design.

This varies significantly by chemistry — lithium-ion batteries generally last considerably longer than tubular or lead-acid batteries under similar cycling conditions. See our Solar Battery page for a detailed comparison.

Panels typically carry a product warranty (10–12 years) plus a longer performance warranty (often 25 years); inverters typically carry a 5–10 year product warranty. Exact terms vary by manufacturer.

Yes, a site survey is an essential step to assess roof condition, shading, structural suitability and available area before finalising your system design — we offer this free of cost.

As a general guide, budget roughly 90 to 100 sq. ft per kW of system capacity, though this varies by panel wattage and technology chosen.

Most residential systems benefit from cleaning 2 to 3 times a year, with more frequent cleaning recommended before and after monsoon and dust-heavy months.

Periodic panel cleaning, an annual electrical and inverter health check, and (for battery systems) periodic battery health monitoring are typically sufficient to maintain performance.

Panels are designed to withstand normal rain, wind and hail exposure within their rated specifications; we recommend a post-storm inspection after any severe weather event as a precaution.

Our maintenance team investigates the fault, determines whether it's a warranty-eligible component issue or a servicing need, and coordinates the appropriate repair or manufacturer claim.

Yes, most modern inverters include mobile app or web dashboard monitoring, letting you track generation and receive fault alerts — see our Solar Monitoring page for details.