Solar in Telangana 2025: Price, Subsidy & Payback Guide
Electricity prices in Telangana are rising every year at around 4% annually, putting pressure on household budgets. Many homeowners are now looking at rooftop solar as a way to cut bills and hedge against rising tariffs.
But the big question is: How fast can you recover your solar investment in Telangana?
Let’s break down the climate, costs, subsidies, savings, payback, ROI, and real case studies to see why 2025 is the best year to go solar.
Telangana’s Climate and Solar Potential
Telangana lies on the Deccan Plateau (latitude ~15.8°N to 19.5°N), which is mostly 250m-600 m above sea level.
- High elevation reduces humidity → clearer skies, higher solar irradiance.
- Flat / gently sloping terrain → easier for ground-mounted solar projects.
Telangana is in southern India and has a tropical semi-arid zone. It is due to its geography that it has high solar radiation and longer sunshine hours than other coastal regions of the country.
The average annual PSH (Peak Sun Hours) of ~5.2 – 5.6 PSH/day across Telangana, equivalent to 5.2 – 5.6 kWh per day.
Know Peak Sun Hours and the right system size for your home?
This means a 1 kW solar in Telangana generates around 1600 units per year.
Let me break down the average PSH in different seasons in Telangana:
| Season | Months | Average PSH (hours/day) | Notes for Solar |
|---|---|---|---|
| Summer (Pre-Monsoon) | March – May | 6.0 – 6.5 h/day | Highest irradiance, clear skies. Best generation period. |
| Monsoon | June – Sept | 3.5 – 4.5 h/day | Cloud cover & rains → lowest generation. Natural cleaning of panels. |
| Post-Monsoon (Autumn) | Oct – Nov | 5.5 – 6.0 h/day | Very good generation, skies are clear after the rains. |
| Winter | Dec – Feb | 5.0 – 5.5 h/day | Mild dip due to shorter days & winter haze, but still good. |
Key Insights:
- Best months for Solar: Feb–May, Oct–Nov.
- Lowest months: July–Aug (generation drops ~30–40% compared to April).
- Overall variation is not extreme, and solar output remains strong throughout the year— Telangana is one of India’s most reliable solar states.
Average Humidity in Telangana
It is important to know humidity levels from a solar point of view. High humidity means more cloud cover and water vapour in the air, preventing light from reaching the panel’s surface. Also, high water content in the air can corrode the solar panel faster than normal.
The good news is that the average annual humidity level across the state is 50–65% which is lower (as it lies in the semi-arid Deccan plateau) than other coastal areas like Andhra Pradesh and Kerala.
| Season | Months | Average Humidity | Solar Impact |
|---|---|---|---|
| Summer (Pre-Monsoon) | Mar–May | 30–45% (very dry) | Excellent irradiance, low scattering, best solar months. |
| Monsoon | Jun–Sep | 70–85% (peaks ~90% during heavy rains) | Cloud cover + high humidity → lowest solar generation. |
| Post-Monsoon (Autumn) | Oct–Nov | 55–65% | Clear skies, humidity drops, solar yield improves. |
| Winter | Dec–Feb | 45–55% | Moderate humidity + shorter days → small dip in generation. |
This means clearer skies, better solar irradiance, and less moisture-related losses in the state.
Solar Suitability from Humidity
- Telangana has moderate humidity levels, which are not a limiting factor for solar PV.
- The monsoon months (Jun – Sept) have high humidity, which drops the solar production by 30-40%
- The challenge is panel cleaning because high humidity during the monsoon may stick with dust and accumulate over the panel surface, further reducing the panel output.
- Further solar panels should be salt and mist-resistant for their longer useful lives.
Average Temperature in Telangana
The temperature analysis is very important because heat reduces the solar panel efficiency (most solar panels reduce 0.35% to 0.45% per degree rise above 25°C).
The average annual temperature across the state is 27–28°C.
Let me share the average temperature in Telangana in different seasons:
| Season | Months | Average Temp (°C) | Max Temp (°C) | Solar Impact |
|---|---|---|---|---|
| Summer (Pre-Monsoon) | Mar – May | 32–35°C | 40–46°C (often in Nizamabad, Khammam, Karimnagar) | Highest irradiance, but heat lowers panel efficiency by 5–10%. |
| Monsoon | Jun – Sep | 26–30°C | 35–38°C | Cloud cover keeps temps lower; efficiency loss less, but irradiance is poor. |
| Post-Monsoon (Autumn) | Oct – Nov | 25–28°C | 33–36°C | Good balance: clear skies + moderate temperatures → very good solar yield. |
| Winter | Dec – Feb | 22–25°C | 28–32°C | Lower ambient temps improve efficiency; shorter days cause small dip in output. |
Solar Suitability from Temperature
The average annual temperature across the state is 27–28°C (>25°C). The solar panels will experience temperature-related losses, although less than in other states like Uttar Pradesh and Rajasthan.
During summer, the cell temperature may reach beyond 65°C (the cell temperature is usually 20-25°C higher than the ambient temperature). This may reduce the performance of the solar panels.
Likely Solutions
- Using solar panels with a lower temperature coefficient of power works efficiently in such situations.
- Also, installing solar panels slightly higher than the average and leaving an optimum gap between the solar panels may help in keeping the solar panels cool.
Best Solar Panels for Telangana (2025): Technology and Features
Telangana has high solar irradiance, high roof-top temperature, humid, and seasonal dust. Considering all these factors, the following solar panels suit for Telangana:
- Lower temperature coefficient of power =<-0.34%/°C.
- Salt and mist-resistant solar panels
- Resist light-induced degradation (LID) and PID (Potential Induced Degradation) effects.
- Perform even in dust and soling
- Come with strong product and performance warranties.
- Better mechanical load rating (wind load and snow load ratings)
- Having local presence, reputation, and bankability
Which Solar Technologies work best in Telangana?
Half-cut technology solar panels may suit the Telangana climate as they reduce the heat losses and improve the structural strength of the solar panels.
N-type-TOPCon solar panels are among the best choices for hot and high solar irradiance regions. They usually have a lower temperature coefficient of power, improved efficiencies, are immune to LID/PID effects, and have excellent performance warranties.
Mono-PERC solar panels are a balanced combination of efficiency and budget. They make maximum utilization of the solar irradiance. The passivated layer at the back of the cell reflects the sunlight and sends it back to the cell, resulting in high efficiencies. Their output remains strong even during monsoons and winters.
Solar Installation Tips for Telangana
- Install solar panels with good rear airflow to keep the panels ventilated and cool during summer.
- Schedule regular cleaning of the solar panels during the dry and dusty season, as it can significantly reduce the solar performance.
- For very hot flat roofs, installing the solar panels slightly above the normal level can improve the annual yield significantly.
- Use string inverters with built-in MPPT solar charge controllers so that they can extract the maximum power from the solar panels all the time.
Solar Panels recommendation for Telangana
If your budget allows, choose HJT or N-type TOPCon solar panels for Telangana’s hot and high solar irradiance climate. They have high efficiencies, perform better in hot climates, and come with the longest performance warranties. Otherwise, pick Mono-PERC solar panels with a low temperature coefficient of power and the longest warranty, as they offer you a balance of both worlds (performance and budget).
Solar Prices and Subsidies in Telangana
A typical per kW price for grid-tied solar in Telangana is ₹75,000 to ₹85,000 before any subsidy.
| Capacity | Average installed price (range, ₹) |
|---|---|
| 2 kW | ~₹1,60,000 |
| 3 kW | ~₹2,05,000 |
| 5 kW | ~₹3,35,000 |
| 10 kW | ~₹5,70,000 |
Government Subsidy (Central + State): Up to ₹1.08 lakh for 3kW and above.
| System Size | Avg. Price (₹) | Central Subsidy (₹) | State Subsidy (₹) | Total Subsidy (₹) | Price After Subsidy (₹) |
|---|---|---|---|---|---|
| 1 kW | ~80,000 | 30,000 | 10,000 | 40,000 | ~40,000 |
| 2 kW | ~1,60,000 | 60,000 | 20,000 | 80,000 | ~80,000 |
| 3 kW | ~2,05,000 | 78,000 | 30,000 | 1,08,000 | ~97,000 |
| 5 kW | ~3,35,000 | 78,000 | 30,000 | 1,08,000 | ~2,27,000 |
| 10 kW | ~5,70,000 | 78,000 | 30,000 | 1,08,000 | ~4,62,000 |
Energy Produced by Solar in Telangana
With an average PSH of ~5.2 – 5.6 PSH/day, a 1kW solar system in Telangana generates ~1500 kWh to 1600 kWh annually.
Working:
Energy generated annually (kWh) = system size x avg. PSH x performance factor x 365 days
where;
- System size = 1kW
- Average PSH ~5.2 – 5.6 PSH/day,
- Performance factor = 0.8
(The performance factor considers the losses in the system, like shading loss, transfer losses, conversion losses, and soiling).
Energy generated annually (kWh) = 1kW x ~5.2 – 5.6 PSH/day x 0.8 x 365 days
~1500 – 1600 kWh annually.
Typical annual energy generation (kWh/yr) in Telangana:
- 1 kW: 1,550 kWh/yr
- 2 kW: 3100 kWh/yr
- 3 kW: 4650 kWh/yr
- 5 kW: 7750 kWh/yr
- 10 kW: 15,550 kWh/yr
Annual Savings from Solar in Telangana
The different solar system sizes have different monthly savings. The savings depend on the number of units saved.
| System Size | Monthly generation (kWh) | Average grid cost (₹/kWh) | Monthly Savings | Annual savings |
|---|---|---|---|---|
| 1kW | 130 units | ₹3.80 /kWh | ₹494 | ₹5,928 |
| 2kW | 260 units | ₹5.74 /kWh | ₹1492 | ₹17,904 |
| 3kW | 390 units | ₹6.69 /kWh | ₹2610 | ₹31,320 |
| 5kW1 | 646 units | ₹7.80 /kWh | ₹5039 | ₹60,468 |
| 10kW | 1,300 units | ₹8.88 /kWh | ₹11440 | ₹1,37,280 |
A 1kW solar system saves 120 units and has monthly savings of ₹494 with a grid rate of ₹3.80/unit, while a 10kW generates 1300 units and falls in the higher tariff slab of ₹8.88/kWh, saving much more than a 1kW solar power system.
Solar Payback and ROI in Telangana: An Analysis in 2025
| System Size | Price After Subsidy (₹) | Annual Savings (₹) | Payback Period (Years) | ROI (% per Year) |
|---|---|---|---|---|
| 1 kW | 40,000 | 5,928 | 6.7 | 14.8% |
| 2 kW | 80,000 | 17,904 | 4.5 | 22.4% |
| 3 kW | 97,000 | 31,320 | 3.1 | 32.3% |
| 5 kW | 2,27,000 | 60,468 | 3.8 | 26.6% |
| 10 kW | 4,62,000 | 1,37,280 | 3.4 | 29.7% |
Working:
- Payback = Price after subsidy/Annual Savings
- Payback for 1 kW is ₹40,000/₹5,928 = 6.7 years
- ROI = Annual Savings/Price after subsidy x 100%
- ROI for 1kW = ₹5,928/₹40,000 x100% = 14.8% per year
System Size vs ROI (%)
Key Insights
- Best ROI: The 3kW system offers the highest ROI (32.3%) with the fastest payback of just over 3 years.
- Balanced Choice: The 5kW and 10kW systems also provide strong returns (~27–30%) and are ideal for medium-to-large homes.
- Smaller Systems: While 1kW has the longest payback (6.7 years), it still offers decent ROI (15%) and may suit homes with very low consumption.
- Subsidy Effect: The government subsidy significantly reduces costs, making solar adoption financially attractive across all sizes.
- Savings Growth: Larger systems save more in absolute terms, but smaller-to-mid systems benefit more from higher per-unit grid tariffs (hence better ROI).
Real Case Study of 3kW Solar of Mr. Reddy in Telangana
Mr. Reddy is a family of three. He is an IT engineer and knows very well that electricity prices are rising year on year in Telangana at 4% per year.
Mr. Reddy was paying an annual bill of over ₹35,000 to the grid. He wanted a solution to hedge his earnings against the rising electricity prices.
Last year, in August 2024, he decided to choose 3kW solar for his energy needs. Since then, he has saved over ₹30,000, and now his monthly electricity bill has reduced from ₹3,000 to just ₹400 per month.
- System size: 3kW
- Location: Telangana
- System cost after subsidy: ₹1,05,000
- Annual Savings: ₹31,000
- Expected Payback: 3.4 years
- Expected ROI: 29% annually
He is expected to save over ₹12 lakhs in 25 years from his 3kW solar power system in Telangana.
“Mr. Reddy says that solar has not only slashed his electricity bill but also hedged against the rising electricity prices.”
Is Solar Worth it in Telangana in 2025?
Yes—solar is more than worth it in Telangana in 2025. Here’s why:
- Fast financial returns: Payback in just 3–4 years.
- High long-term ROI: Potential 200–300% gains over 10 years.
- Low net investment with central and state subsidies.
- Net-metering policies that reward you for excess generation.
- Strong solar potential and rising electricity costs further push the case.
- Supportive government policy landscape and unprecedented momentum make 2025 the best year to go solar.
Is solar worth it in your state? Know the right size, design, and financial feasibility of solar before making a decision.
Solar FAQ: Telangana(2025)
1. What is the subsidy available on rooftop solar in Telangana?
Central Subsidy (MNRE – PM Surya Ghar Muft Bijli Yojana):
- ₹30,000 for 1kW
- ₹60,000 for 2kW
- ₹78,000 for 3kW and above (capped)
Telangana State Subsidy:
- ₹10,000 for 1kW
- ₹20,000 for 2kW
- ₹30,000 for 3kW and above
Total benefit can go up to ₹1.08 lakh for a 3kW or higher system.
2. What is the average cost of solar after subsidy in Telangana?
- 1 kW: ~₹40,000
- 2 kW: ~₹80,000
- 3 kW: ~₹97,000
- 5 kW: ~₹2,27,000
- 10 kW: ~₹4,62,000
3. What is the solar payback period in Telangana?
Yes. Telangana offers rooftop net metering for residential systems. Surplus electricity exported to the grid is credited against your bill.
4. Is net metering available in Telangana?
Yes, we have a parking lot adjacent to the restaurant, and street parking is also available. Valet parking is offered on weekends.
5. How much electricity does 1kW solar generate in Telangana?
Telangana receives ~5.2 – 5.6 PSH/day (Peak Sun Hours) on average. A 1kW system generates ~130 units/month (~1,560 units/year).
6. Who is eligible for a solar subsidy in Telangana?
Residential consumers only (individual homes, apartments, housing societies). Commercial and industrial consumers are not eligible for a subsidy, but can install solar without a subsidy.
7. How do I apply for the subsidy?
- Register on the National Portal for Rooftop Solar (MNRE).
- Choose an MNRE empanelled vendor in Telangana.
- Vendor applies to TSREDCO for approval.
- After installation & inspection, the subsidy is directly credited to your bank account.
8. Is Solar really worth it in Telangana in 2025?
Absolutely Yes. With the fastest payback of 3–4 years, ROI above 25–30%, high subsidies, and rising electricity tariffs, solar in Telangana is one of the best investments a homeowner can make in 2025.
