FAQ's
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General
A solar rooftop system is a photovoltaic (PV) system installed on the roof of a building. It captures sunlight and converts it into electricity, which can be used to power the building’s electrical appliances.
Solar panels on the roof capture sunlight and convert it into direct current (DC) electricity. This DC electricity is then converted into alternating current (AC) electricity by an inverter, which can be used to power your home or business.
– Reduces electricity bills
– Decreases carbon footprint
– Low maintenance costs
– Increases property value
– Potential to earn from surplus energy through net metering
installation
A solar professional will assess factors such as roof orientation, angle, shading, and available space to determine suitability. Generally, south-facing roofs with minimal shading are ideal.
The process involves:
– Site assessment
– Design and engineering
– Permitting and approvals
– Installation of panels and inverter
– Inspection and commissioning
The installation of a solar rooftop system typically takes 1-3 days, depending on the system size and roof complexity. However, the entire process, including permits and inspections, may take a few weeks.
Cost & savings
The cost varies depending on the system size, quality of components, and installation specifics. On average, prices range from ₹40,000 to ₹60,000 per kW installed, before any incentives or subsidies.
Yes, the Indian government offers several incentives and subsidies to reduce the upfront cost of solar systems. The Ministry of New and Renewable Energy (MNRE) provides subsidies for residential and institutional installations. Additionally, state-specific subsidies and incentives may be available.
Savings depend on system size, local electricity rates, and energy consumption. Typically, a well-sized system can offset a significant portion of your electricity bill, sometimes up to 100%.
Maintenance & warranty
Solar systems are low maintenance. Regular cleaning of panels and periodic inspections to ensure all components are functioning correctly are usually sufficient. Many systems come with monitoring to alert you of any issues.
Solar panels typically have a lifespan of 25-30 years, with inverters lasting 10-15 years. Most manufacturers offer warranties that cover the system for 20-25 years.
Warranties typically include:
– Performance warranty (20-25 years for panels)
– Product warranty (10-25 years for panels and inverters)
– Installation/workmanship warranty (2-10 years, depending on the installer)
technical
Yes, solar panels can generate electricity during cloudy or rainy days, though the output will be lower compared to sunny days.
Excess electricity can be fed back into the grid through net metering, allowing you to earn credits or receive payments from your utility company.
While it’s possible to DIY, it is recommended to have a professional installation to ensure safety, compliance with local regulations, and to maximize system performance.
environmental impact
Solar power reduces reliance on fossil fuels, decreases greenhouse gas emissions, and lowers air pollution, contributing to a cleaner and more sustainable environment.
While the manufacturing process does involve energy and resources, the overall environmental impact is significantly lower compared to conventional energy sources. Over their lifespan, solar panels generate much more clean energy than what is used in their production.
Yes, India has regulations and initiatives in place to promote the responsible disposal and recycling of solar panels to minimize environmental impact.
Maintenance & warranty
Solar systems are low maintenance. Regular cleaning of panels and periodic inspections to ensure all components are functioning correctly are usually sufficient. Many systems come with monitoring to alert you of any issues.
Solar panels typically have a lifespan of 25-30 years, with inverters lasting 10-15 years. Most manufacturers offer warranties that cover the system for 20-25 years.
Warranties typically include:
– Performance warranty (20-25 years for panels)
– Product warranty (10-25 years for panels and inverters)
– Installation/workmanship warranty (2-10 years, depending on the installer)
miscellaneous
Yes, many systems are designed to be scalable. You can add more panels or upgrade components as your energy needs grow.
Standard grid-tied systems will not work during a power outage for safety reasons. However, systems with battery backup or hybrid systems can provide power during outages.
Most solar systems come with monitoring software or apps that allow you to track energy production, consumption, and system health in real-time.
environmental impact
Solar power reduces reliance on fossil fuels, decreases greenhouse gas emissions, and lowers air pollution, contributing to a cleaner and more sustainable environment.
While the manufacturing process does involve energy and resources, the overall environmental impact is significantly lower compared to conventional energy sources. Over their lifespan, solar panels generate much more clean energy than what is used in their production.
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