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The average cost of a grid connected solar rooftop system is approx. Rs 60,000/KWp, upto 10KWp. For more than 10 KWp, it will be lower and if the size goes above 100 KWp it will be as low as rs 48,000/KWp.
Each KW of a solar plant requires about 10 Sq Mts. (100 Sq Ft) of shadow free space.
In a solar rooftop system, the solar panels are installed on the roof of any residential, commercial, institutional and industrial buildings.
It will take about 6-12 weeks depending on size of the plant. Less than 10 KW systems can be installed within 6 weeks.
Height will be around 3 ft. In case elevated structure is required, the same can be provided for a marginal increase in cost. We have executed many projects with elevated structures. Also, we have installed plants on tin shed/asbestos sheet/RCC roof.
Multiple benefits would be there like reduced electricity bill and other tax benefits and incentive from the government while reducing carbon footprint and contributing to the cleaner environment.
Yes, you will still receive the electricity bill. But it would be much lower because the electricity generated by solar will go to the grid and will be credited to your account.
One can avail the benefit of 40% accelerated depreciation in the first year of installation itself (earlier it was 80%). This can help to significantly reduce your tax liability.
Yes, solar installations are considered under home improvement program. Banks will lend up to 80% of project cost at home loan rate of interest with a 5 years of loan tenure.
Yes, installations must be completed within 180 days of receiving the Letter of Approval (LOA). Delays beyond this period can lead to cancellation of the application or require re-approval.
Yes, most modern rooftop systems come with smart monitoring tools or mobile apps that allow users to track energy generation, usage, and grid export in real-time.
Most Indian states have a minimum capacity requirement of 1 kW for net metering panel. However, the exact limit may vary based on local DISCOM policies.
Yes, but it usually needs to be a common rooftop installation shared among residents. Permissions and billing may vary based on your state’s group housing net metering policy.
Yes, the Indian government offers central financial assistance (CFA) of up to 40% for subsidized solar panel for home under the PM Surya Ghar: Muft Bijli Yojana.
Most residential systems take about 1 - 2 weeks for installation, based on size and approvals.
Yes, but it will involve dismantling, transport and reinstallation charges, which may vary from company to company.
Monocrystalline silicon cells are preferred due to their high efficiency and compact size. They fit well on limited roof space and produce more electricity per square metre.
Yes, organic modern cells can be semi-transparent or colored for design use.
Yes, the organic and dye-sensitized solar cells can generate power from indoor light sources too.
NBFC/fintech loans can be released in days to weeks, depending on the type of lender. PSU/DFI loans may take longer, but can offer better rates and higher limits.
Yes, it’s possible to modify existing solar farms into agrivoltaic systems by adjusting panel heights or layouts to allow space and light for farming underneath. However, this retrofitting may require additional investment and structural changes, depending on the original system design.
Small and marginal farmers in arid and semi-arid regions, where water scarcity and harsh sun conditions limit crop productivity, can benefit the most. Agrivoltaics can improve soil moisture retention, reduce heat stress on crops, and generate additional income from solar energy.
Currently, most crop insurance schemes in India do not specifically cover agrivoltaic setups. However, as the model grows, state governments and insurers may introduce specialized policies to protect dual-use systems from extreme weather, technical failures, or crop loss.
No, subsidies are capped at 3 kW; higher capacities are not eligible for central support.
Applications not installed by the set cutoff (typically April 1, 2025, deadline extended) will be canceled, and you’ll need to reapply.
Most modern solar panels last 25 to 30 years, with many still producing electricity beyond that, though at reduced efficiency.
Solar cells are individual units that convert sunlight into electricity, while solar panels (modules) are made by combining multiple solar cells into one unit.
Absolutely. High-efficiency panels like HJT, IBC, or TOPCon are ideal for rooftops with space constraints as they generate more power in less area.
In grid connected rooftop or small SPV system, the DC power generated from SPV panel is converted to AC power using power conditioning unit and is fed to the grid either of 440/220 Volt three/single phase line or 33 kV/11 kV three phase lines depending on the capacity of the system installed at residential complex or institution/commercial establishment and the regulatory framework specified for respective States. These systems generate power during the day time which is utilized fully by powering captive loads and feed excess power to the grid as long as grid is available. In case, where solar power is not sufficient due to cloud cover etc., the captive loads are served by drawing power from the grid.
Yes, in Haryana it is mandatory for all commercial buildings, schools, hospitals, offices, factories and residential premises bigger than 500 sq yards. Other states are also likely to make it mandatory.
There is a provision of Central Financial Assistance of 30% of the total cost or Rs. 12 to Rs. 18 per watt or Rs. 1.20 crore per MWp under the Grid Connected Rooftop and Small Solar Plants Programme of the Ministry. This is available on First come First Serve basis and with a limited budget.
Solar inverters are designed to block power outflow in the event of grid failure. But if the inverter senses that the power is available (Let’s say from DG Set) then it will start flowing power to load. This means that solar inverter needs to sense that power is available. Some people assume that even if a DG of 1 KVA is installed to send signal to solar plant , it will suffice and solar plant will start giving power. This is theoretically correct but it is not practically possible and practically one needs to connect DG set of 1.25 time load to take benefit of solar power also where in Solar installation should not be more then 80% of DG Capacity. In such a scenario DG will continue to run may be at almost NO load condition so as to consume minimum fuel and power shall be supplied by solar and fluctuations in solar power shall be taken care by DG set.
If above precautions are taken then it is possible to design a system to exploit solar generation and save on fuel costs while DG set is running.
However, recommended settings are - if load is 1KVA then DG capacity should be 1.5KVA and solar capacity which can be installed should not be more than 0.6KVA.
Average maintenance cost is almost nil since the components used are having the MTBF (mean time between failure) of 23-25 years.
The life of solar panels is about 40 years but the manufacturers give a warranty for 25 years.
Each KW system will generate about 1300 units of electricity in a year. However, it would depend on specific area.
The net metering based rooftop solar projects facilitates self-consumption of electricity generated by the rooftop project and allows for feeding the surplus energy into the network of the distribution licensee. In net metering the beneficiary pays to the utility on net meter reading basis only. Alternatively two meters can also be installed to measure the export and import of power separately. The mechanism based on gross metering at mutually agreed tariff can also be adopted.
Yes, you can install a solar system for personal use without applying for net metering. However, without a net metering connection, you won’t be able to send excess power back to the grid or earn credits.
Yes, net metering is applicable to both single-phase and three-phase electricity connections, but the applicable capacity and technical requirements may vary based on your connection type.
Tenants can apply if they provide valid proof of occupancy and written consent from the property owner granting rights to use the rooftop for solar installation.
The process generally takes 30 to 90 days after submitting all documents. Delays may occur due to DISCOM backlogs or technical feasibility checks.
No, net-metered systems shut off automatically during outages as a safety measure. To access power during such times, a hybrid system with batteries is required.
Several banks and Non-Banking Financial Companies (NBFCs) offer green energy loans at low rates, under the scheme PM-KUSUM. Different states may offer different schemes, which will differ.
You may have to pay a small fixed or demand charge, but the overall charges would be reduced.
No, solar panels need very little maintenance, like cleaning dust or debris a few times a year.
Perovskite and organic solar cells can be made using printing or spraying, making them cheap and lightweight.
Yes, many banks and lenders accept MNRE or state subsidy as part of the loan appraisal, but confirm with the lender first.
Often, NBFCs are faster but slightly costlier. PSUs/DFIs usually offer lower rates with longer processing times.
Some PPAs include buyout clauses allowing the consumer to purchase the system after a period. Make sure to check the contract details.
Yes, SIDBI and some NBFCs have MSME-tailored green loan products with interest subventions and flexible tenors.
Yes, some agrivoltaic models are designed to support livestock grazing, especially in areas with elevated panel installations. Sheep and goats, for example, can graze under solar panels without damaging the equipment, helping farmers optimize land use further.
Agrivoltaic projects may be eligible for carbon credits or green financing, especially if they contribute to emissions reductions, renewable energy production, and sustainable agriculture. However, eligibility depends on certification standards, project documentation, and partnerships with verified agencies or ESG programs.
No, only owners with legal rooftop rights are eligible under PM Surya Ghar.
Subsidy is credited directly into your bank/loan account; loan disbursal begins post-installation.
Yes, to qualify for subsidy and quality checks, only MNRE or state-approved vendors can install the system.
Not necessarily. On-grid systems don’t need batteries, but off-grid or hybrid systems do if you want power backup during outages.
No, if installed correctly. In fact, they can protect your roof from weathering. Poor installation, however, can lead to leaks, so choose certified installers.
| Monthly Averaged Radiation Data (kWh/m2/day) Tilt Angle 28 Deg | Monthly Averaged Radiation Data (kWh/m2/day) Tilt Angle 28 Deg | Monthly Averaged Radiation Data (kWh/m2/day) Tilt Angle 30 Deg | Monthly Averaged Radiation Data (kWh/m2/day) Tilt Angle 23 Deg | Monthly Averaged Radiation Data (kWh/m2/day) Tilt Angle 30 Deg | Monthly Averaged Radiation Data (kWh/m2/day) Tilt Angle 26 Deg | Monthly Averaged Radiation Data (kWh/m2/day) Tilt Angle 26 Deg | |
| Delhi | Gurgaon | Haryana | MP | Punjab | Rajasthan | UP | |
| Jan | 5.16 | 5.15 | 5.07 | 5.58 | 5.07 | 5.13 | 4.77 |
| Feb | 5.91 | 5.9 | 6.05 | 6.21 | 6.05 | 5.55 | 5.7 |
| Mar | 6.47 | 6.47 | 6.5 | 6.5 | 6.51 | 6.03 | 6.3 |
| Apr | 6.2 | 6.2 | 6.78 | 6.41 | 6.79 | 6.27 | 6.2 |
| May | 5.89 | 5.88 | 6.76 | 5.99 | 6.76 | 6.24 | 6.03 |
| Jun | 5.41 | 5.41 | 6.25 | 4.96 | 6.25 | 5.89 | 5.31 |
| Jul | 4.76 | 4.76 | 5.32 | 3.83 | 5.32 | 5.1 | 4.42 |
| Aug | 4.6 | 4.6 | 5.24 | 3.5 | 5.24 | 5.07 | 4.29 |
| Sep | 5.28 | 5.27 | 6.01 | 4.83 | 6.01 | 5.5 | 4.63 |
| Oct | 5.81 | 5.8 | 6.72 | 5.84 | 6.72 | 5.43 | 5.71 |
| Nov | 5.56 | 5.55 | 6.15 | 5.85 | 6.16 | 5.13 | 5.44 |
| Dec | 4.95 | 4.94 | 5.17 | 5.34 | 5.18 | 4.79 | 4.81 |
| Annual Average | 5.5 | 5.49 | 6 | 5.4 | 6 | 5.51 | 5.3 |
