How To Get Subsidy For Solar Power In Tamil Nadu?

1. Only 1 KWp plants for home use would be considered for a TamilNadu Government subsidy of Rs. 20,000/- per kWp for individual applicants.

2. Domestic clients with a TANGEDCO service connection under tariffLA-1A are eligible for the subsidy.

3. Only grid-connected rooftop solar PV systems with solar PV modules, rooftop support structure, solar grid inverter, cabling, and protective devices are eligible for the subsidy. Only the grid-tie system will be examined.

How much do solar panel subsidies cost?

The federal government provides a 30% subsidy to states in general categories for these systems. The central government provides subsidies of up to 70% to special states such as Uttarakhand, Sikkim, Himachal Pradesh, Jammu & Kashmir, and Lakshadweep.

In Tamil Nadu, where can I get a solar meter?

  • The first step is to apply. Submit an application to the TANGEDCO office of the Executive Engineer (O&M) in your area.
  • Technical Feasibility is the second step.
  • Step 3: Installing a solar PV system and determining its readiness.
  • Step 4: Conduct a safety inspection.
  • Step 5: Replace the service connection meter and commission it.

Is there net metering in Tamil Nadu?

The generic tariff order issued by the Tamil Nadu Electricity Regulatory Commission (TNERC) for grid-connected solar energy generating systems (rooftop systems) of varied capacities has elicited conflicting reactions.

The tariff order took effect on October 22 and will remain in place until March 31, 2023. TNERC claimed that while Tamil Nadu’s solar energy strategy for 2019 set a target of 3600 MW of solar energy in the consumer category by 2023, just roughly 325 MW, or 9.03 percent, has been reached.

It set a tariff for capacities ranging from 10 kW to 999 kW in the range of 3.10-3.61 per unit. To incentivize consumers to install energy storage facilities, a 20% higher rate has been set under the time-of-day (ToD) tariff category. The cost for this is between 3.72-4.33 per unit.

All residential consumers, with the exception of those living in huts and agriculture consumers, are eligible for the net metering system, according to TNERC. They also have the option of selecting the net feed-in mechanism. The energy provided to the grid from the rooftop solar system is deducted from the energy consumed for own use in the net metering method, and the resulting net units are billed at the applicable retail tariff.

The energy supplied to the grid is billed at the feed-in rate, while the energy consumed is invoiced at the corresponding retail tariff in the net-billing or net feed-in process. The gross metering mechanism involves selling the solar system’s units directly to the grid and is accounted for at the feed-in tariff.

Domestic customers that provided net-feed-in under the 2019 order will be able to migrate to the new net metering system, but LT customers will not be eligible for gross metering, according to the order.

According to K.E.Raghunathan, who has spent 36 years in the solar industry and is currently a member of TNERC’s Advisory Committee representing MSME, the order provides a boon to domestic solar users with net metering, which is currently not allowed, and will undoubtedly push solar enthusiasts to choose the solar option in a big way.

The introduction of network charges (0.83 per unit for HT and 1.27 per unit for LT consumers, respectively) will be a dampener, according to Martin Scherfler, a renewable energy expert and co-founder of Auroville Consulting, and it is unlikely that Tamil Nadu will be able to meet its rooftop solar target of 3,600 MW by 2023.

Assuming that network charges increase by at least 5% per year (pace of inflation), network prices for LT users will be 4.30 per unit at the end of 25 (lifetime of the solar) and 2.81 per unit for HT consumers. Network charges will be higher than the cost of solar generating at this rate, resulting in de facto net negative returns to customers, he added.

What is the procedure for applying to TEDA?

Vendors applying for TEDA enrollment should submit a valid training certificate granted by TEDA, EDI, MSME-DI, or another organization to one of their technicians for training in the installation and commissioning of solar PV and solar thermal systems, as applicable.

Is it possible to run an air conditioner on solar power?

As weather conditions worsen due to rising global warming and rising levels of air pollution, an increasing number of individuals are installing air conditioners. As a result, air conditioners are more widespread in homes, schools, workplaces, and other commercial establishments. Not only that, but air conditioners are utilized 24 hours a day, seven days a week in hospitals, theaters, and other places. Installing a Solar System at Medical Institutes for a 20% ROI and lower electricity expenses was the subject of our last blog. Due to the high wattage of air conditioners, increased use has resulted in high power bills, and consumers are looking for ways to cut their electricity costs.

People are considering installing solar panels to power their air conditioners in order to save money on their electricity costs. Is this, however, feasible? Is it possible to run air conditioners on solar panels? The answer is a resounding YES.

Off-grid and on-grid solar systems are the two most common types of solar systems.

Solar panels, inverters, and batteries make up an off-grid solar system. This system is capable of operating without the use of a grid.

On-grid solar systems, on the other hand, comprise of solar panels and an inverter, and appliances will not operate if there is no energy.

To manage high loads, make sure to use inverters with a high kVA rating. If your AC demand is significant, you should also install extra solar panels with a higher kW rating.

Both of these technologies are capable of running air conditioners. However, even if there is no energy, an off-grid solar system can keep the air conditioners operating (as batteries store the excess power generated by the sun, which helps in running the appliance even when there is no supply from the grid). On-grid solar systems with capacities ranging from 3 kW to 10 kW may readily run air conditioners. Large commercial office spaces (with electricity rates as high as Rs. 1 lakh) to houses can all benefit from an on-grid solar system (with bills of Rs.5-10k per month). People can also take advantage of net metering rules to receive a credit on their electricity bills.

  • Government approvals – A company that installs an on-grid rooftop solar system is eligible for a number of government incentives and subsidies. As a result, relevant government approvals and documentation, such as legitimate identity evidence and property papers, are required in order to obtain the same. On-grid solar systems for domestic use are eligible for a 20% subsidy, with a capital subsidy of up to INR 20,000 per kilowatt. To be eligible for the benefit, the eligible party must have a grid-connected, battery-free system and be a domestic consumer.
  • Rooftop space – Installing an on-grid system is simple and can be done on the rooftop by oneself. Rooftops of commercial complexes, housing societies, community centers, government organizations, and private institutions, among others, can be used for such installations. With its flexible structure design, it can be mounted on both the ground level and the rooftop.
  • For every kilowatt of installed power, a minimum of 100 square feet is required.
  • Maintenance – When compared to an off-grid solar system, an on-grid solar system requires less maintenance and has a longer lifespan.

According to MNRE, the benchmark cost of grid-connected rooftop solar in India is Rs. 60 per watt.

Though still a tiny market in India, the concept of using solar energy to power air conditioners is likely to grow significantly in the future. Solar power appears to be a reasonable and economical option to reduce electricity costs in nations like India, where there is enough sunlight to generate big amounts of solar energy while equipment such as air conditioning consume enormous amounts of energy.


The cost of purchasing a solar system is relatively expensive at first. Solar panels, inverters, batteries, wiring, and installation are all included in this cost. Nonetheless, because solar technology is continually improving, it’s realistic to predict that prices will continue to fall in the future.


Although solar energy can be collected during overcast and rainy days, the solar system’s efficiency is reduced. Solar panels must be exposed to sunlight in order to collect solar energy. As a result, a couple of overcast, rainy days can have a significant impact on the energy system. It’s also important to remember that solar energy cannot be collected at night.

Thermodynamic panels, on the other hand, are an option to consider if you need your water heating solution to work at night or during the winter.

Check out our video for a breakdown of how effective solar panels are in the winter:

I. About the Scheme Frequently Asked Questions

1.What distinguishes the Chief Minister’s Solar Rooftop Capital Incentive Scheme from others?

In addition to the 30 percent subsidy program* of the Ministry of New and Renewable Energy (MNRE), the Tamil Nadu government gives a capital subsidy of Rs. 20,000 per kilowatt for grid-connected home solar PV systems under this scheme. The solar system capacity for individual dwellings / flats must be 1 kW. Solar systems with capacities of 5 kW, 10 kW, and multiples thereof can be used as a group application in residential flats.

* No more than 30% of the MNRE bench mark cost or 30% of the project cost, whichever is less.

2.Which solar PV systems will be eligible for the Solar Rooftop Capital Incentive Scheme of the Chief Minister?

The Solar Rooftop Capital Incentive Scheme of the Chief Minister is for grid-connected solar PV systems. This capital subsidy program is only for Grid-tied systems.

In Tamil Nadu, a typical solar PV system generates roughly 1,500 kWh (units) per year for every 1 KW installed. Actual energy generation is determined by solar panel efficiency, tilt angle, weather, grid availability, and solar panel cleanliness.

Due to the import and export of power through net metering, a grid-connected photovoltaic power plant will minimize the power cost. In a billing cycle, someone imports (consumes) 1,000 kWh from the grid and sends 600 kWh to the grid. Netmeter will credit for 400 kWh (1000 kWh600 kWh) on the energy bill.

PV systems that are connected to the grid do not require batteries. Batteries are expensive, require regular maintenance, and waste 1520 percent of their energy during storage and recovery.

The same can be purchased through the TEDA/Chennai Office (TAMILNADU ENERGY DEVELOPMENT AGENCY,5th Floor, E.V.K. Sampath Maaligai, No. 68. College Road, Chennai, Pin Code: 600006.)

7.How much solar rooftop photovoltaic grid-tie power plant capacity is eligible under the scheme?

You can choose between 1 kWp, 2 kWp, 5 kWp, and 10 kWp, but the subsidy will be limited to 1 kWp per house / flat.

There are two options for registering. It can be done in two ways: online or offline.

Take a print of the submitted copy, sign it, and send it to TEDA/Chennai through mail or in person as soon as possible.

Cost of solar off grid system:

In a nutshell, an off-grid solar system is a solar system that is not connected to the energy grid. The energy generated by solar panels is stored in batteries in an off-grid solar system, and when power is needed, the stored electricity is drawn from the batteries to power critical loads.

Solar Off Grid System Up To 10 kW MNRE Benchmark Cost:

  • Rs 62,000/kWRs 68,000/kW for a one-hour backup
  • Rs 74,000/kWRs 81,000/kW 3 hour backup
  • Rs 94,000/kWRs 1,03,000/kW for a six-hour backup

MNRE Benchmark Cost For Solar Off Grid Systems With Capacity Between 10 and 25 kW:

  • Rs 55,000/kWRs 60,000/kW for a one-hour backup
  • Rs 66,000/kWRs 72,000/kW 3 hour backup
  • Rs 84,000/kWRs 92,000/kW for a six-hour backup

Note: These are MNRE costs for a typical type of installation with standard equipment; if your solar panels installation has elevation or top-of-the-line technology, the prices would increase by Rs 5,000/kW to Rs 10,000/kW.

Conclusion on Calculating solar panels requirement:

To figure out how many solar panels a home or factory needs, first determine its average monthly consumption (kWh), then divide it by the average monthly solar power generation in your location. This should give you the number of solar panels required to power your home in kilowatts, which you can then divide by the wattage of individual solar panels to get the total number of solar panels required.

In India, the average household’s monthly power use is 250 kWh. As a result, an average Indian home requires a solar system with a capacity of 2.3 kW, or seven 330-watt solar panels.

If you enjoyed this post and were able to locate your solar panel requirements for your home, please share it with your friends.


  • solar potential/results.htm for additional information about sun hours
  • 20FY% 202019-20.pdf

What is solar gross metering, and how does it work?

In gross metering, the complete electricity generated by the solar system is injected into the grid, and the consumer imports electricity from the grid for retail consumption.