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Three ways to run a 5 HP pump, compared on upfront cost, fuel, reliability and what happens over ten seasons.
Image: SOLAR POWER IRRIGATION RICE FARMING by SMMIMAGES, CC BY-SA 4.0, via Wikimedia Commons.
A farmer with a 5 HP pump has three options: connect to the grid, run a diesel engine or go solar. Each has a different cost curve. This guide compares them over ten seasons using transparent assumptions so that you can plug in your own numbers for solar pumps in Chhattisgarh.
Quick answer: diesel is cheapest to buy and costliest to run; grid is cheap to run if power is available when you need it; solar costs most upfront and least to run, and support schemes can change the balance dramatically.
| Factor | Solar 5 HP | Grid electric 5 HP | Diesel 5 HP |
|---|---|---|---|
| Upfront cost | Rs 2.8 - 3.5 lakh before support | Rs 30,000 - 50,000 plus connection | Rs 25,000 - 40,000 |
| Annual running cost | Close to nil | Tariff dependent | Rs 40,000 - 80,000 in fuel |
| Annual maintenance | Rs 2,000 - 5,000 | Rs 3,000 - 8,000 | Rs 8,000 - 15,000 |
| Availability | Daylight hours | Supply schedule | Any time if fuelled |
| Working life | 25 years panels, 10 - 15 pump | 8 - 12 years | 5 - 8 years |
| Noise and fumes | None | Low | High |
Figures follow the ranges used in our solar water pump guide.
| Cost over 10 seasons (illustrative) | Solar | Diesel |
|---|---|---|
| Purchase | Rs 3.0 lakh | Rs 0.35 lakh |
| Fuel (at about Rs 60,000 a year) | Nil | Rs 6.0 lakh |
| Servicing and repairs | Rs 0.3 lakh | Rs 1.2 lakh |
| Replacement of pump set | One controller or pump replacement possible | One to two engine replacements |
| Total (approx.) | Rs 3.3 lakh before support | Rs 7.5 lakh or more |
Assumptions will change with diesel price and usage. The pattern, however, is stable: fuel dominates the diesel cost. Add PM-KUSUM support and the gap widens.
Size the array for head and flow, choose DC or AC drive, use a storage tank to bridge cloud and plan for panel cleaning in dusty fields. See agricultural solar pump dealer in Chhattisgarh.
A farmer with six acres irrigates in rabi and kharif using a 5 HP diesel engine, burning about 600 litres a year. At Rs 90 a litre, fuel alone is Rs 54,000 a year. Servicing adds about Rs 10,000. A 5 HP solar pump system costs about Rs 3.0 lakh before support; if PM-KUSUM covers a large share, the farmer's own contribution is much smaller. Even without support, the annual saving of about Rs 60,000 gives a payback of around five seasons, after which irrigation is almost free. The farmer also stops waiting for diesel deliveries and no longer worries about engine breakdowns at critical times.
| Question | Why it matters |
|---|---|
| What is the daily discharge at my head? | Ensures the pump meets crop water need |
| Is the controller protected against dry running and surge? | Prevents burnout |
| Who services the pump locally? | Pumps fail at critical times |
| Does the quotation cover earthing and lightning protection? | Fields are open and exposed |
| How is the array secured against theft and wind? | Arrays in open fields are vulnerable |
When the water table falls, the head increases and every pump needs more energy to lift the same volume. Diesel pumps burn more fuel, grid pumps draw more units and solar pumps deliver less water per day unless the array is sized with margin. Design for the lowest expected water level, not the best day. A good installer asks for the borewell's depth, static and dynamic water level and seasonal variation.
| Assumption | If it changes |
|---|---|
| Diesel price | Higher price makes solar even better |
| Hours of pumping per year | More hours increase diesel and grid costs |
| PM-KUSUM or other support | Lowers solar's net cost sharply |
| Grid connection availability and tariff | Cheap, reliable grid improves the grid option |
| Pump or controller replacement | Adds a cost to every option over ten years |
Count fuel, not just the purchase price. The next step is a free survey. Speak to a solar company in Raipur that handles solar installation in Raipur from design to commissioning, and read the best solar company in Raipur checklist before you sign anything. For background, see solar in Raipur and the solar Raipur locality guide, explore the full solar blog, and check PM Surya Ghar Yojana in Raipur for subsidy slabs.
Over several seasons, usually yes. Diesel pumps cost less upfront but fuel and servicing recur. Solar has near-zero running cost.
It depends on how reliable and costly your grid connection is. Solar avoids connection delays, load-shedding windows and tariff exposure, but costs more upfront.
Not without batteries. Plan irrigation for daylight, or use a storage tank for water.
Support can cover a large share of a solar pump's cost, shifting the comparison strongly in its favour. Rates vary by year and component, so confirm.
Typically a bit more than the pump's rating, for example 5 to 6 kWp, depending on head and design.
Visit C-29, Sector 3, Devendra Nagar, Raipur, Chhattisgarh 492001, call 083051 31420 or send your details online for a free survey and a written quotation. Our solar installation in Raipur team replies the same working day.
Next, talk to a solar company in Raipur about solar installation in Raipur. Our solar in Raipur guide explains costs, the solar Raipur guide covers your area and the best solar company in Raipur checklist helps you choose. Browse every article on the solar blog, or see PM Surya Ghar Yojana in Raipur and our solar services.
Site visit, borewell data and a written solar pump quotation with support guidance.