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Solar performance case study

Verma Footwear

15 kW solar. 1,800 units generated every month.

  • Commercial
  • Rooftop solar
  • Budhnagar, Delhi
  • Footwear manufacturing
Budhnagar, Delhi
15 kW
Installed capacity
1,800 units
Avg. monthly generation
₹27.6K
Est. monthly savings
35 months
Simple payback
Rooftop solar array at Verma Footwear
15 kW rooftopAvaada TOPCon × GoodWe
01Who they are

A footwear manufacturer based in Delhi.

Verma Footwear is a commercial footwear manufacturing business located in Budhnagar, Delhi. With electricity supporting its manufacturing operations, the business had an opportunity to use its tin-shed rooftop to generate power on-site and reduce its recurring electricity costs.

Industry
Footwear manufacturing
Site type
Commercial
Roof type
Tin shed
Sanctioned load
39 kVA
02The business challenge

A monthly electricity bill of more than ₹52,000.

Before solar, Verma Footwear consumed approximately 3,395 units of electricity every month, with an average monthly bill of ₹52,100.

For a manufacturing business, electricity is an ongoing operating expense. Rooftop solar offered an opportunity to offset part of that consumption with power generated at the facility itself.

Pre-solar billMonthly average
₹52,100
average monthly bill, 100% from the grid
3,395
units consumed per month
₹15.35
effective cost per unit
03The solution

A 15 kW rooftop solar system installed on the tin shed.

Installed capacity
15kW

Powermore installed a 15 kW rooftop solar system at Verma Footwear, using Avaada TOPCon modules and a GoodWe three-phase on-grid inverter.

Modules
Avaada TOPCon NON-DCR 720 Wp
Inverter
GoodWe 15 kW Three-Phase On-Grid Inverter
Location
Budhnagar, Delhi
Roof type
Tin shed
Average monthly generation
1,800 units
Sanctioned load
39 kVA
  1. 01
    Generate

    N-Type TOPCon modules on the tin shed roof

  2. 02
    Convert

    GoodWe 15 kW Three-Phase On-Grid Inverter

  3. 03
    Self-consume

    Site load is served first, behind the meter

  4. 04
    Save

    ₹27,635 estimated saving every month

04The impact

From ₹52,100 a month to an estimated ₹24,500 after solar.

The system is expected to generate approximately 1,800 units every month, an estimated 53% of the pre-solar 3,395 units. At the effective pre-solar rate of approximately ₹15.35/unit, that is about ₹27,635 of electricity cost offset every month.

53%
Estimated energy offset
₹27.6K
Estimated monthly savings
₹3.32L
Estimated annual savings
Monthly electricity cost
₹ · before solar vs estimated after solar
Before solarAfter solar (est.)
Before solarAfter solar*

*Estimated post-solar cost uses the pre-solar effective rate on the remaining grid consumption. Actual bills may vary with generation timing, self-consumption, fixed and demand charges, taxes and the applicable grid arrangement.

Grid energy drawn
Indexed to pre-solar consumption (3,395 units = 100)
Before solar100
After solar47
From grid
Offset by solar · 53
Solar generation
1,800 units/month
Still from the grid
1,595 units/month
05Savings summary & ROI

The numbers behind the installation.

The project has an estimated 35-month simple payback period, making rooftop solar a long-term investment in managing electricity costs.

Estimated monthly electricity savings
₹27.6K
Estimated annual electricity savings
₹3.32L
Simple payback period
35 months
Payback timeline
Years from commissioning
Payback · 35 months
Y0Y1Y2Y3Y4Y5Y6Y7Y8Y9Y10
Based on the supplied figures:
  • Pre-solar monthly bill: ₹52,100
  • Pre-solar consumption: 3,395 units/month
  • Effective electricity rate: ₹15.35/unit
  • Average monthly solar generation: 1,800 units/month
  • Estimated remaining grid consumption: 1,595 units/month
  • Estimated post-solar electricity cost: ₹24,500/month
  • Estimated monthly savings: ₹27,635
  • Estimated annual savings: ₹3.32 lakh
06Key observations

What the numbers actually show.

  1. 01Solar offsets a meaningful share of electricity consumption.

    With average monthly generation of approximately 1,800 units, the system can offset an estimated 53% of Verma Footwear's pre-solar monthly consumption.

  2. 02Monthly electricity costs can come down.

    Based on the estimated energy offset, the monthly electricity cost moves from approximately ₹52,100 before solar to ₹24,500 after solar.

  3. 03The savings accumulate over time.

    At an estimated saving of approximately ₹27,600 per month, the system represents around ₹3.32 lakh in annual electricity cost savings.

Savings at a glance

Before solar, and with solar.

MetricBefore solarAfter solar*
Monthly electricity consumption3,395 units1,595 units from grid
Monthly electricity bill₹52,100₹24,500
Effective electricity rate₹15.35/unit₹15.35/unit
Solar generationN/A1,800 units/month
Estimated energy offsetN/A53%
Estimated monthly savingsN/A₹27,635
Estimated annual savingsN/A₹3.32L
Simple paybackN/A35 months

*Estimated post-solar electricity cost is calculated using the pre-solar effective electricity rate and estimated remaining grid consumption. Actual bills may vary based on solar generation timing, self-consumption, fixed charges, demand charges, taxes and applicable grid arrangements.

The Powermore approach

More control over the cost of manufacturing.

For manufacturers, electricity is a recurring input cost that affects day-to-day operations. Verma Footwear's rooftop solar system uses available roof space to generate power on-site and help reduce reliance on grid electricity.

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