In most residential plots across Lucknow, Kanpur, Barabanki, Unnao, and Raebareli, the borewell submersible pump runs somewhere between two and five hours every day. It is rarely the first load homeowners think about when they consider going solar, yet it is often the single appliance adding Rs 400 to Rs 1,200 to a household's UPPCL bill every month, year-round, regardless of season. Unlike an air conditioner that runs only in summer, the pump runs in December just as it does in June.
A rooftop solar system sized correctly for a UP home can cover the borewell pump load almost entirely during daylight hours, while also powering fans, lights, and other daily appliances. With the PM Surya Ghar scheme offering up to Rs 78,000 in central subsidy and UPPCL's net metering crediting surplus generation back against your bill, solar is now genuinely cost-effective for homes where borewell running costs are a major line item. Here is what UP homeowners need to know in 2026.
How Much Electricity Your Borewell Actually Uses
Pump Motor Size and Daily Consumption
Most residential borewells in UP use 0.5 HP to 2 HP submersible motors. A 0.5 HP motor draws approximately 0.37 kW and running it for three hours daily consumes about 1.1 units. A 1 HP motor draws around 0.75 kW and uses roughly 2.25 units over three hours. A 2 HP motor running for the same period consumes about 4.5 units. At UPPCL's residential tariff of Rs 7 to Rs 7.50 per unit in 2026, a 1 HP pump running three hours daily adds Rs 472 to Rs 506 to your monthly bill. A 2 HP pump on the same schedule adds Rs 945 to Rs 1,013 every month.
Why Consumption Is Higher Than Homeowners Expect
Several factors push real pump consumption above simple calculations. Many homes in UP run the pump to fill both an underground sump and an overhead tank, which means the motor cycles on and off four to six times per day rather than once. Each start-up draws a surge current that is two to three times the running current. Older single-phase motors lose efficiency over time, drawing more current for the same output. And in Lucknow and Ayodhya, where groundwater tables have dropped over the last decade, deeper borewells require higher-head pumps that consume more power than the motor nameplate suggests under real-world lift conditions.
How Solar Covers Your Borewell Load
Grid-Tie Rooftop Solar: The Right Choice for Most UP Homes
For a typical home in Lucknow or Sitapur that already has a UPPCL connection, a grid-tie rooftop solar system is the most cost-effective way to reduce borewell electricity costs. The solar panels feed power into your home's wiring during the day. When the pump runs in the morning or afternoon, it draws from the solar panels first and falls back on grid power only if the panels are not generating enough, such as during heavy cloud cover. Any excess generation that the pump and other loads cannot consume gets exported to the UPPCL grid and credited against your bill through net metering.
The advantage of this approach is that the borewell pump runs normally at any time of day without any changes to the motor, wiring, or automatic float switch system. There is no separate pump controller to install. The solar system handles the household's full load, of which the borewell is just one component.
Standalone DC Solar Pump Systems: For Farms and Water Supply Without Grid
Homes or farms in Hardoi, Sitapur, and rural areas of UP that rely entirely on a pump for irrigation or drinking water, and where grid power is unreliable or absent, can install a standalone DC solar pump system. These systems connect solar panels directly to a DC pump motor through a solar pump controller, without any inverter or battery. The pump runs only during daylight hours, which suits irrigation schedules naturally. A 1 HP DC solar pump system with a 1.5 to 2 kW panel array costs Rs 60,000 to Rs 90,000 and eliminates diesel or grid costs for irrigation entirely.
System Sizing and Savings for UP Homes with Borewells
Sizing the Right System for Your Pump and Home
The correct approach is to size the solar system for the home's total electricity consumption, not just the borewell. Adding the pump load into the total calculation ensures the system covers all major loads without oversizing. As a practical guide for UP homes:
- A home using 200 to 250 units per month, including a 1 HP pump, typically needs a 2 kW system.
- A home consuming 350 to 450 units per month with a 1.5 HP pump and two or three ACs in summer needs a 3 to 4 kW system.
- Larger homes in Kanpur or Lucknow using 550 to 700 units per month with a 2 HP pump and multiple ACs need a 5 kW system.
At Sunwize, we recommend calculating three months of UPPCL bills, noting the highest and lowest consumption months, and sizing to cover an average that accounts for both summer AC loads and year-round pump loads. This prevents the common mistake of sizing purely for summer and being left with a bill in the lower-consumption months.
PM Surya Ghar Subsidy Reduces System Cost Significantly
Homeowners in Lucknow, Barabanki, Raebareli, Ayodhya, and all other UP cities can apply for the PM Surya Ghar Muft Bijli Yojana subsidy on residential rooftop solar. The subsidy slabs for 2026 are Rs 30,000 for a 1 kW system, Rs 60,000 for a 2 kW system, and Rs 78,000 for systems of 3 kW and above. For a 3 kW system costing roughly Rs 1.65 lakh before subsidy, the Rs 78,000 central subsidy reduces the out-of-pocket cost to approximately Rs 87,000. This is without accounting for net metering credits that reduce the monthly UPPCL bill from the first month of operation.
Practical Points Before Installing Solar for Your Borewell
Check Your UPPCL Sanctioned Load
UPPCL requires that the solar system capacity does not exceed your sanctioned connected load. Homes with a 5 kW sanctioned load can install up to a 5 kW solar system. If your borewell pump pushes your total connected load above the sanctioned limit, apply to UPPCL for a load enhancement first. This process takes two to four weeks and is worth completing before the solar installation begins, as it avoids any objection during the net metering connection.
Rooftop Shadow Assessment Matters
Borewells are often located near overhead water tanks, which are typically placed on the rooftop as well. Water tanks cast fixed shadows on the roof at specific angles throughout the day. A proper site survey maps these shadows and positions panels where generation is maximised. A poorly sited panel in permanent shade produces 40 to 60 percent less power than one in full sun, reducing the system's ability to offset pump and household loads.
If you are a homeowner in Lucknow, Kanpur, Unnao, Sitapur, Barabanki, or elsewhere in Uttar Pradesh and your borewell pump is adding hundreds of rupees to your UPPCL bill every month, a rooftop solar system is one of the most practical and well-subsidised investments you can make in 2026. A site assessment will give you an accurate system size, monthly savings estimate, and subsidy-adjusted payback period based on your specific roof and consumption pattern.
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