How Solar energy works?
Solar panels absorb sunlight and convert it to direct current (DC). This is then converted by a solar inverter to alternating current (AC), which can be used by homes or businesses. Solar energy systems are classified into three types depending on the energy storage and grid connectivity – On-grid solar systems, off-grid solar system, and hybrid solar systems. Each system is tailored to a specific set of requirements.
On-grid Solar Systems
This is the simplest and most cost-effective system to install. Here, the system is grid-connected and does not have energy storage. The net meter records the number of units exported and imported. This allows you to receive credit for excess power exported to the grid. On-grid systems are especially useful in cases where there is a stable grid connection. It is easy to maintain, cost effective and easy to install.
Off-grid Solar Systems
Solar systems that have to store excess electricity in batteries and are not connected to the grid electricity, are called off-grid solar system. Off-grid systems are typically deployed in remote locations or places with unstable grid connection. Freyr Energy suggests clients with power outrages for than 4 hours regularly to opt for Off-grid systems. Due to batteries, they require higher maintenance and are expensive compared to on-grid system.
A hybrid system as the name suggests, combines on-grid and off-grid solar system. Here, the system is linked to the grid as well as the battery. The inverter has three priorities: first, it will supply power to charge batteries, and once the batteries are full, it will supply alternating current to the load. Any excess electricity is then routed to the utility grid via the net meter. The net meter monitors the amount of electricity imported and exported and customer can get a credit for the units exported. Hybrid systems can work even during a power outage as the batteries provide reference voltage for the system to operate. They are relatively high maintenance more complicated to set up and require the most upfront capital.
Which one you should choose?
On-grid systems are gaining popularity in India as they are simple to maintain, provide a quicker return on investment, and are simple to install. They are far less expensive compared to hybrid and off-grid systems. Unless you have a power outage more than 4 hours daily, an on-grid system might work best for you.
Freyr Energy has completed over 1,700+ installations across 22 states. We specialize in rooftop solar and are certified to offer subsidies for rooftop solar installation on Indian homes. You may be eligible for 20-40% subsidy for your rooftop solar systems. So, what are you waiting for? Make the transition to solar energy today.