One acre of land in Karnataka can earn from solar in two ways. Lease it to a solar developer and you typically earn rent of around ₹21,000 to ₹30,000 a year in the examples used in this guide. Build and own the plant yourself and an acre's share of capacity can bring in roughly ₹10 lakh a year in power sales in an illustrative case, before running costs and loan repayments.
The gap between those two numbers is the whole story: leasing is low risk and low income, while owning can produce higher income but requires far more capital and carries more risk. This guide walks through the cost, generation and income for each route using the figures supplied for 2026.
Panchami Global is a solar company in Karnataka that develops and manages solar farms for landowners, investors and businesses. The numbers below are the same framework we would walk through in a first meeting.
First, How Much Solar Fits on 1 Acre?
A ground-mounted solar plant needs about 4 to 5 acres per megawatt, so 1 acre holds roughly 0.2 to 0.25 MW of solar. According to a SolarQuarter cost guide from October 2026, a 1 MW plant needs 4 to 5 acres and generates about 14 to 17 lakh units of electricity a year.
In practice, nobody builds a commercial solar plant on a single acre. Most projects start around 500 kW or 1 MW. So when people ask about “1 acre solar plant profit”, the useful answer is an acre's share of a larger plant. The calculations below work that way.
Route 1: Lease Your Land to a Solar Developer
Leasing is the simplest way to earn from solar farming in Karnataka. You keep ownership of the land, a developer builds and runs the plant, and you receive fixed yearly rent for 25 years or more. You invest nothing and take on very little project risk.
At Karnataka's Pavagada Solar Park, farmers were paid ₹21,000 per acre per year with a 5% increase every two years, according to the World Resources Institute. More recently, an April 2026 study by CEEW, IISD and CSTEP, which included fieldwork in Karnataka, reported an average of ₹30,000 per acre per year among farmers leasing land for solar plants.
Rent depends on location, distance to a substation, land quality and lease length. Land close to a substation is often more attractive because it reduces the cost of connecting the project. For context, see how the land model worked in our guide to solar parks in Karnataka.
Route 2: Build and Own the Plant
Owning the plant can earn far more per acre, but you pay to build it and carry the project risk. A ground-mounted plant costs ₹3.5 to ₹5 crore per MW, excluding land. That puts the one-acre-equivalent share at roughly ₹70 lakh to ₹1.25 crore, depending on equipment and layout.
If you are evaluating the investment route rather than only the land economics, read our guide on whether solar is a profitable business in Karnataka.
Here is the income side, worked out for one acre's share of a larger plant:
| Step | Low case | High case |
|---|---|---|
| Capacity on 1 acre | 0.2 MW (5 acres per MW) | 0.25 MW (4 acres per MW) |
| Generation per year | 2.8 lakh units | 4.25 lakh units |
| Selling price per unit (illustrative) | ₹3.00 | ₹3.00 |
| Gross income per year | ₹8.4 lakh | ₹12.75 lakh |
Generation uses SolarQuarter's 14 to 17 lakh units per MW per year. The ₹3.00 per unit figure is only an example, close to the ₹2.95 per unit ceiling cited for small farmer-led solar plants in Gujarat in 2026. Your actual price in Karnataka depends on who buys the power and the contract you sign.
Gross income is not profit. From it you pay for operations and maintenance, insurance, land costs if applicable, loan interest and other project expenses. Panels also degrade gradually over time. The CEEW, IISD and CSTEP study cited in the source estimated average returns of 11% to 16% for landowners who invested in their own solar plants.
Route 1 vs Route 2 at a Glance
| Lease your land | Build and own | |
|---|---|---|
| Your investment | None | Roughly ₹70 lakh to ₹1.25 crore per acre-equivalent share |
| Yearly income per acre | About ₹21,000 to ₹30,000 rent | About ₹8 to ₹13 lakh gross, before costs |
| Return | Fixed rent, no capital at risk | Estimated 11% to 16% on investment in the cited study |
| Risk | Low: rent is fixed in the lease | Higher: depends on generation, tariff, buyer and financing |
| Work involved | Almost none | Approvals, buyer contract and maintenance |
| Best for | Landowners who want steady passive income | Investors with capital who want higher potential returns |
What Decides the Real Profit?
The same acre can earn very different amounts. Five things make the difference:
- Who buys the power. Selling to a DISCOM usually means a fixed tariff. Selling to a business through open access follows a different commercial structure.
- Distance to a substation. A long power line can add substantial project cost.
- Land quality and shade. Flat, unshaded land generally needs less civil work and avoids avoidable generation loss.
- Equipment. Better modules can cost more, while approved-equipment requirements also apply to relevant projects.
- Financing. Debt can reduce the cash you put in upfront, but adds interest and repayment risk.
Can Farmers in Karnataka Use PM-KUSUM Component A?
PM-KUSUM Component A is the central scheme route intended for decentralised solar plants on agricultural land, including projects up to 2 MW that sell power to DISCOMs.
This uncertainty is one reason landowners may also compare private lease arrangements and privately developed solar farms that sell power to businesses.
How Panchami Works with Landowners and Investors
Panchami develops solar farms in Karnataka and supplies their power to businesses. If you own land, we can assess whether it suits a solar farm and what lease or partnership structure may be realistic. If you want to invest, we can explain how project cost, generation, buyer structure and operating expenses affect returns.
Frequently Asked Questions
How much profit does a 1 acre solar plant make?
It depends on the route. Leasing an acre to a solar developer typically earns around ₹21,000 to ₹30,000 a year in the examples cited in this guide. Owning an acre-equivalent share of a larger plant can generate about ₹8 to ₹13 lakh a year in gross power sales in the illustrative ₹3-per-unit case, before operating costs and financing.
What is the cost of a 1 acre solar plant?
A ground-mounted plant is estimated at about ₹3.5 to ₹5 crore per MW excluding land and needs roughly 4 to 5 acres per MW. One acre's equivalent share is therefore roughly ₹70 lakh to ₹1.25 crore. Most commercial projects are larger than one acre.
How many units does 1 acre of solar generate in a year?
One acre represents about 0.2 to 0.25 MW of a larger plant. Using the generation range in the supplied source, that is roughly 2.8 to 4.25 lakh units a year. Actual generation varies with sunlight, equipment, layout, maintenance and grid availability.
Is solar farming in Karnataka profitable?
It can be if the land suits solar and there is a reliable buyer for the power. Leasing gives steady, lower-risk income. Owning a plant has greater income potential but requires capital and exposes the investor to generation, tariff, buyer and financing risks.
Can I lease my agricultural land for a solar plant?
Solar developers do lease farmland for long-term projects, but the supplied source does not verify Karnataka's current land-use or conversion requirements. Confirm the applicable rules with your local revenue authority and have the lease reviewed before signing.
The Bottom Line
One acre of land on its own earns modest rent from solar. One acre as part of a well-planned solar farm, selling power to the right buyer, can generate much more gross revenue — but only with substantial investment and higher risk. The right route depends on whether you want steady passive income or are ready to invest for potentially higher returns.
Panchami is one of the solar companies in Karnataka that develops solar farms with landowners and investors.
Have Land or Capital for a Solar Project?
Share your land location or investment range with Panchami Global. We can assess the site or project structure and give you a realistic view of the opportunity rather than only the best-case number.