How does a Solar PV system work?
A solar PV system is made up of the following major components-
Bi-Directional Meter- Every Residential/Commercial/Industrial Establishment with access to the electricity grid has a uni-directional meter which measures the amount of power that you import. Once you install a solar system this meter is replaced by a bi-directional meter which tracks both your import and export(Solar generation) of power.
Can solar reduce my monthly electricity bill?
Can i use solar as my backup power(UPS).
Yes! You can.
What is an On-Grid System?
An On-Grid System or a Grid-Tied Solar System, is connected to your public utility grid. This is one of the most widely used systems out there.
What is an Off-Grid System?
An Off-Grid System as the name suggests, is not connected to the grid. In this the Solar panels charge the batteries, and the stored energy is used in times of power outages.
What is an Hybrid System?
Hybrid Solar Systems have the features of both, On-Grid and Off-Grid systems.
How can solar help the environment?
Traditional sources of power like fossil fuels generate greenhouse emissions and these sources are finite. The products of burning of fossil fuels cause air pollution and are some of the major causes of global warming.
How much does it cost to install solar for home?
A primary site assessment is required for an initial estimate. Systems below 5kW tend to cost between 70,000-80,000/kW based on your roof structure, requirement of elevation for solar etc.
What's is my payback period for rooftop solar?
Your payback for a rooftop solar system in Bangalore can range between 4-6 years.
How long does it take to install Solar for home?
Installation of a Rooftop solar system in Bangalore generally takes 1-2 months, including all the approvals from the utility grid to install under the net-metering policy.
What system size is suitable for my needs?
Use the calculator to get a rough estimate of the rooftop solar capacity required to match your homes energy requirement - Solar Calculator
For how long does my solar rooftop system help me save on electricity?
Solar panels come with a performance warranty for 25 years.
Are there any drawbacks to On-Grid Solar System?
On-Grid solar systems generate power only when they are connected to the grid which means that in case of a power cut when there is no import of power from the grid, the generation of the solar system is not accounted for during the period of outage.
Is my building suitable for installing solar?
Solar can be installed on any kind of roof including, Flat Roof, Asbestos Sheet, Puff Sheets, Inclined Roofs, Metal Roofs etc. and the complexities involved can vary depending on the type of roof.
Why should I opt for Rooftop Solar photovoltaic when I am getting continuous power from the local power distribution company?
Power Distribution Companies are mainly dependent on the power generated and supplied from Conventional Energy Sources such as Thermal, Hydro or Nuclear Power plants.
Thermal Power Plant which is our major source of Power Generator in India is facing tremendous pressure due to depletion in availability of its one and only raw material, Coal.
Most of the Thermal power plants in India are either not generating or are not operating to its full capacity due to unavailability / short supply of Coal.
Due to these restrictions set up in India and worldwide the burden of operation cost of these Power plants are passed on to the end users and hence the price being paid to Local distribution companies are increasing at a very drastic level.
By opting for Solar, we are independent of the energy generated and our dependency on power distribution company is brought down to a huge extent. We are thereby reducing the consumption of power from the local distribution company and are also playing a small part in extending our support to reduce Green House Gas Emissions which would allow our future generations to live a life we are presently enjoying.
I have a solar water heater installed in my home, why do I need a solar PV System?
Solar Water Heater and Solar PV are two different technologies.
Solar Water Heater absorbs the Sun light falling on a flat plate collector (Toughened Glass) and heats the water flowing through tubes placed below these Glass. Here Solar Energy is converted into heat and used only for heating the Water which is stored in Insulated Tanks for use in Industrial/Residential Applications.
Solar Water heaters help replace your electric water heaters (Geysers) and they can only offset the electricity consumption of this. Our homes have other high power consuming devices such as Air Conditioners, Induction Cooktops, Microwave Ovens etc.
Solar PV Systems can help us with this.
Solar Photovoltaic system on the other hand absorb the photons (Energy Carriers) available in sunlight and convert them into electricity (DC) using Solar Photovoltaic Modules. This Electricity is then converted to AC using Inverters and then is used to power up Industrial/ Residential Loads.
In Grid-connected systems, the energy consumed by all these loads including your lighting loads can be generated using a rooftop solar system.
In fact solar water heaters are the first step that most customers take towards solar. Impressed with the savings that are accumulated over time with these systems , most customers tend to align towards a Solar PV System to completely offset their monthly bills.
I would want to use my roof area for recreation and Gardening purpose and still want to reap the benefits of Solar, Is it viable?
Yes, sure you can.
If you are planning to make good use of your roof and do not want your solar plant to take up this space, then you can go for Elevated structures for placement of Solar Modules. By doing this the area above your roof is utilised and the actual area below these modules can be used for your Gardening and can also be used for spending your spare time with your loved ones.
If I am opting for a Grid Connected Solar System, should I change my existing EB meter set up or can the same be continued?
A Bi-Directional Meter is necessary for this application. In a Grid Connected solar system based on your load consumption, the excess energy generated is exported to the grid for which the local Electricity Board agrees to pay the equivalent amount to the user based on the local solar policies available.
Is Maintenance charges of a Solar Roof top Plant high?
Just as any other equipment/ component a solar plant also requires regular maintenance but the cost of maintenance is very minimum. The major reason for this is that the solar setup is a static setup and does not have any moving/rotating parts in its system design which if considered would have lead to wear and tear of its components leading to high cost in maintenance. The regular maintenance work in solar roof top plant is cleaning of photovoltaic modules which can be carried out by just using normal water to clear out any dust or bird droppings on the module glass surface. Quarterly checkups by the installer can help in troubleshooting an error in advance.