Case Study – Benefits of 2kW Rooftop Solar PV Installed by SLE in Chennai

This case study provides a summary of the benefits enjoyed by one of our customers. The installation is a 2kW Rooftop Solar PV System of our Premium product line. Our Premium product line includes our industry-leading 10 Year End-to-End warranty backed by manufacturer’s warranty. The plant was commissioned, with Solar Net Meter, in April 2016. The customer started enjoying the financial benefits of the plant immediately with savings first reflected in their May 2016 EB billing cycle. This case study provides the benefits summary for the first six months of plant operation. The average savings due to the solar power plant is ₹ 4,000 per billing cycle under current EB rates. The savings will increase by at least 5% per annum as the EB tariff rates are increased.

The benefits enjoyed by the customer are summarized in the table below and further illustrated in the two charts – Chart 1 for energy produced by the plant and Chart 2 for savings from the plant.

Six-Month Benefits Summary:

Bi-Monthly Cycle Energy from EB (Units) Energy from Solar (Units) Total Energy Consumed (Units) Total EB Bill (₹) Effective EB Rate ₹/Unit ₹/Unit Saved Due to Solar
May 2016

1,017

629

1,646

5,468

3.32

2.53

Jul 2016

254

545

799

362

0.45

4.63

Sep 2016

424

510

934

872

0.93

4.37

Six-Months

1,695

1,684

3,379

6,702

1.98

3.54

Illustration of Energy Production with Rooftop Solar PV Plant:

SLE Logo

* The above chart reflects actual consumer data from Nov 2014 to Sept 2016

In the above Chart, the values highlighted in Green are units produced by the solar plant. In May, which has the maximum consumption of 1,646 units, the solar plant offset the total units by 629 units. So the EB meter recorded a net consumption of 1,017 units.

Illustration of EB Bill Savings with Rooftop Solar PV Plant:

SLE Logo

* The above chart reflects actual consumer data from Nov 2014 to Sept 2016

The above chart shows the EB current consumption charge paid for each billing cycle. The last 3 billing cycle, the customer paid the amount shown in Red as in ₹ 5,468, ₹ 362 and ₹ 872 respectively. The amount shown in Green is the savings due to solar plant. The chart shows an average savings of ₹ 3,983 per billing cycle.