India is on the cusp of Solar Revolution, and we at Clare Solar have been right at the forefront, leading the move and educating people towards renewable energy solutions. Investing in Solar Rooftop not only helps in bringing down day to day electricity costs but also promotes Green Environment. The correct question one should be asking is “How much should I invest in Solar System?“
Let’s understand the basics of a Rooftop Solar System…
A Solar system is generally categorised into On-Grid or Off-Grid. An On-Grid system converts DC to AC and this AC energy is then fed back to grid. An Off-Grid system does DC to DC conversion for charging batteries and is preferably used in areas where power cuts are frequent. However, any solar system would comprise of below components…
- Solar Panel
- Solar Inverter (On-Grid / Off-Grid)
- Solar Batteries (Applicable for Off-Grid systems)
- ACDB & DCDB
- MC4 Connectors
- Cables (DC & AC)
- Earthing & Lightning Arrestor
How much does it cost?
An On-Grid system usually starts from ₹50000/Kw and prices fall down as you opt for high capacity systems.
On Off-Grid on the other hand starts from ₹65000/Kw and prices may fall slightly less in comparison to on-grid system as with increasing capacity the number of batteries starts increasing and so do the cost.
Types of System
If you have very less/occasional power cuts in your area and you don’t want the hassle of maintenance, you should opt for an On-Grid system. With an On-Grid system, the ROI (Return on Investment) is around 3-4 years or less (depending on electricity rate/unit). In on-grid system, the Solar energy is converted into AC and the same is either utilised by you or fed back to the grid for which you get rebate from DISCOM.
For areas, where power cut is a day to day activity or remote areas where there is no electricity, Off-Grid system is the best choice. In off-grid system, the batteries are charged and load is run through Solar during day time, and then you can use the backup at night.
Hybrid is a combination of both On-Grid and Off-Grid system, where you get benefits of both the system, but is suitable for people with No Budget Constraints as the cost is higher.
What capacity should I Install?
Well, that depends on your current load and consumption…
For an on-grid system, check your electricity bill and look for two things:
Sanctioned Load – Depending on your state, the DISCOM may have a cap on the maximum capacity for Solar Plant, which is usually 100% of sanctioned load.
Average units consumed in a day– This will give you an idea of how much capacity of Solar Plant is required.
Rule of Thumb : 5-6 Units/Day/Kw
This means that a 1Kw system would give you around 5-6 units per day depending on SunShine in your area. So, if your daily consumption is 10 units, a 2Kw system would suffice.
For off-grid system, you need to calculate your current load requirement and add 20% of calculated load as part of variable load.
System Required = Total Load + 20% of Total Load
What if I need Financial Assistance?
Well it’s your lucky day! Government of India does provide financial assistance but only for On-Grid system. Please read the article below…
I have more questions…
“Sometimes questions are more important than answers.” ~Nancy Willard
For any queries related to installation and/or material required for installation, you can get in touch with us through Contact Us form. You can also drop us a message through Whatsapp