Most frequent questions and answers
“Photovoltaic” is composed of two words. “Photo” means Light. “Voltaic” means producing Electricity. When sunlight is used, the relevant term is “Solar photovoltaic”. A photovoltaic (PV) cell, also called as a Solar cell, which is the basic building block, is a device that converts sunlight into electricity.
Many cells put together are known as a module, and many modules assembled together form an array. A PV system consists of an array of modules generating DC electricity, an inverter (which converts D.C energy in to A.C. energy) can be stored in battery storage banks or fed into the Electricity Grid.
Inverter is a device which converts DC power to AC power. There are basically two types of inverters: off-grid inverters and grid tied inverters
A grid tied inverter uses grid voltage as reference for conversion of DC into AC power.
1. PV modules
2. Grid tied inverters
3. Bi-directional meter
4. Cables – DC/AC
The SRTPV system, where the inverter uses grid as reference voltage for generation of the solar power and the energy so generated can be exported to the utility grid during non- consumption period.
As per KERC SRTPV Regulation-2016, it is defined as
I. Net-metering: The energy generated by the solar rooftop plant is first allowed for self- consumption and the excess energy is injected to the grid.
II. Gross-metering: The total energy generated by the solar rooftop plant is to be injected into the grid without allowing the generated solar energy to be consumed directly by the consumer.
The life of the Module is 25 years and Inverter warranty is minimum is 5 years or more.
1kW requires 100 sq. ft. shadow free area on the rooftop.
1kW generates average of 4 to 6 units of electricity per day.
The term of the PPA is 25 years
Yes . Refer to KERC Order Dated:09.12.2019
Yes, all the consumers of ESCOM are eligible for net- metering. Only domestic consumers are eligible for both net and gross metering.
Applications can be submitted from 1kW up to 2000kW and limited up to sanctioned load of the installation.
Yes. Online application SRTPV -Subsidy
Applications can be submitted from 1kW upto 2000kW and limited upto sanctioned load of the installation.
AEE(Ele) of concerned O&M, Sub-division, ESCOM
As per KERC Regulation-2016 the SRTPV is defined as below:
Solar Rooftop photovoltaic plant- SRTPV plant means the Solar photovoltaic plant installed on the existing roof of the consumer’s premises that uses sunlight for direct conversion into electricity through photovoltaic technology with the solar panels of SRTPV plant mandatorily mounted in the space available on the roof of any residential, commercial, institutional, industrial and other buildings which are constructed as per the building construction acts/norms.
As per KERC Regulation-2016, the gross metering is defined as
The total energy generated by the solar rooftop plant is to be injected into the grid without allowing the generated solar energy to be consumed directly by the consumer.
Hence, in a gross metering arrangement, the Hybrid inverters not allowed.
Since, roof rights of the Apartments are not given to the individual consumers, hence not eligible for installation of SRTPV system.
The SRTPV installation can be to put on Common metering installation of the Apartment.
As per the KERC Order dated 11.11.2016, the PPA are executed at the present tariff determined by the commission without actual payment.
As per the KERC Order dated 15.09.2017, If all the 3 nos. of RR installations are in the same consumer name, then gross metering is allowed up to total sanctioned load/ Contract demand of the building.
In such cases, the PPA shall be executed at 90% of the present tariff.
As per the KERC Order dated 15.09.2017, If all the 3 nos. of RR installations are in different consumer name, then Net metering is allowed to the individual installation.
In such cases, the PPA shall be executed at 90% of the present tariff
NO. The new owner of the building has to execute the new PPA at the present tariff. The Old SRTPV PPA has to be terminated.
The maximum capacity is 100KVA*.85(Power factor) = 85kW subject to feasibility of the line.
Any replacement or up gradation of Modules / inverters shall be duly intimated & approved by concerned Sub-divisional officer.
The consumer shall submit the Work Completion report and at any point of time the total installed capacity of SRTPV shall not exceed Sanctioned load of the building.
NO. As per KERC order dated:15.09.2017, in case of any revision in the sanctioned load or contract demand of the building the consumer would be eligible for the 90% of the present tariff.
The existing PPA has to be terminated.
As per PPA terms and conditions the work has to be completed within 180 days. In case of any delay the consumer is not eligible for the tariff agreed into the PPA and Supplemental PPA shall be executed the reduced tariff.
As per PPA terms and conditions the SRTPV plant shall be commissioned with 6 months but as the SRTPV Regulation2016 the plant has to be commissioned and synchronized within 180 days.
Hence 180 days is the time period for commissioning and synchronizing the SRTPV plant.