10kW Solar System Price, Power Generation, Area Needed, Maintenance | Honest Review

10kW Solar System Price, Power Generation, Area Needed, Maintenance | Honest Review
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In this article you will see how much does a 10 kW solar system cost, area needed to install 10 kW solar system, number of solar panels needed in 10 kW solar system and everything else.

As per MNRE, the average cost of 10 kW solar on grid system is Rs 55,000/kW, which adds up to Rs 5,50,000, And cost of 10 kW solar off grid system is Rs 62,000/kW to Rs 68,000/kW. A 10 kW solar system needs 32 solar panels each of 330 watt and a roof top area of 1,000 sqft.

10kW solar system price:

The price of a solar system depends on the type of system you are installing, brand of solar panels, type of solar panels (mono or poly) and quality of other equipment you use.

In the solar industry the price of solar system is based on per kilowatt value for e.g a 2 kW on grid solar system will cost Rs 70,000 / kW, which translates to a total of Rs 1,40,000.

Generally speaking, smaller the size of a solar system higher is the per kilowatt price. Also, a solar on grid system is cheaper than a off grid solar system. If you don’t know what a solar on grid system is then please check this article – Everything about solar on grid system and this one to know about solar off grid system.

Ministry of New & Renewable Energy (MNRE) sets benchmark cost every year for solar system from 3 kW to 500 kW.

MNRE benchmark cost for solar on grid system from 3 kW to 500 kW:

Solar System Size (kW)Cost (Rs / kW)
Above 3 kW – 10 kWRs 60,000 / kW
Above 10 kW – 100 kWRs 55,000 / kW
Above 100 kW – 500 kWRs 53,000 / kW

Note: The above pricing is benchmark cost set by MNRE, I work in the solar industry and have installed several solar on grid systems, the actual pricing goes up Rs 4,000/kW to Rs 10,000/kW for smaller systems (< 20 kW) and for larger system (> 100 kW) it generally comes down by Rs 2,000/kW to 5,000/kW. The prices totally depend on the quality of components you use.

You can download the MNRE benchmark cost for 2019 – 2020 from here – MNRE benchmark cost for solar system installation in 2019 – 2020

If you want to install a solar off grid system then it’s overall cost will be high as there are batteries involved in the system. The following cost are as per MNRE.

MNRE Benchmark Cost For Solar Off Grid System Up to 10 kW:

  • 1 hour backup Rs 62,000/kW – Rs 68,000/kW.
  • 3 hour backup Rs 74,000/kW – Rs 81,000/kW.
  • 6 hour backup Rs 94,000/kW – Rs 1,03,000/kW.

MNRE Benchmark Cost For Solar Off Grid System Above 10 kW Up to 25 kW:

  • 1 hour backup Rs 55,000/kW – Rs 60,000/kW.
  • 3 hour backup Rs 66,000/kW – Rs 72,000/kW.
  • 6 hour backup Rs 84,000/kW – Rs 92,000/kW.

Note: These are prices given by MNRE for a standard type of installation with standard equipment’s, if your solar panels installation has elevation, quality of equipment is top notch the prices will go up by Rs 5,000/kW – Rs 10,000/kW.

You can check out this article to know more about cost

If you live in a city or in a place where you don’t get frequent power cuts, then a solar on grid system is best for you.

Number of solar panels required in 10 kW solar system:

In 2020, almost all solar panels installer install above 300 Watt solar panels. If you are using 330 Watt solar panel (market standard) for your 10 kW system, then you will need 31 solar panels.

If you opt for smaller wattage solar panels like 250 watt, then you will need 40 solar panels to make a 10 kW = 10,000 watt system.

if you are not sure about how many kW solar system your house needs, check out this article – Calculate how many solar panels a house needs.

But mind you to use electricity generated from solar panels you need a whole of other equipment’s. A 10kW on grid solar system will need following equipment’s:

10kW Solar System Equipment’sQty
Solar Panels 330 Watt Each31
Solar Inverter 10 kW1
Direct Current Distribution Box (DCDB)1
Alternate Current Distribution Box (ACDB)1
AC Cables, DC Cables, MC4 ConnectorLot

Apart from these you will need conduit pipes, meters. earthing, lightening arrestor and few other components.

Area needed to install 10kW solar system:

As a rule of thumb, 10 kW solar system needs 1,000 sqft of shadow free area for installation considering adequate space for cleaning and maintenance.

Cross section area of a single 330 watt solar panel is 6.6 ft X 3.3 ft = 21.78 sqft.

Hence, the least area needed to install 10kW solar system (31solar panels) is 675.18 sqft.

When it comes to area few things have to be considered.

  • Your solar panels should not receive shadow for atleast 5 hours in a day
  • Your roof should be able to handle solar panels load.
  • The access of roof should be easy for maintenance.

10kW solar system power generation:

The power generation of solar panels depends on the angle of inclination, direction of installation (North, East, West, South), shadow impact on solar panels, number of sun hours in your locality and maintenance of solar panels.

If we assume that your solar panels are facing the right direction with proper inclination and there is no impact of shadow on it with 6 hours of daily sunshine from 10:00 am to 4:00 pm then one can expect solar generation of 4 units every day or 115 to 120 units every month.

10kW Solar System GenerationkWh
10kW Solar System Generation in A Day40
10kW Solar System Generation in A Month1,200
10kW Solar System Generation in A Year12,200

Assume 60 days rainy season & no generation in that time.

How much savings in electricity bill will a 10kW solar system give?

The amount of money you save from your solar system depends on the type of solar system you install (on grid, off grid, hybrid), electricity tariff in your area, TOU tariff plan or not and type of net metering policy.

As more and more people install solar on grid system, we will look at the amount of electricity bill that can be saved by installing a solar on grid system.

In best case scenario, if your area has no TOU plan and there is net metering policy with electricity tariff of Rs 10 / unit, then a 10kW solar system can save 1,200 unit X Rs 10 / unit = Rs 12,000 of electricity bill every month.

Savings From 10kW Solar SystemRs
Electricity Savings From 10kW Solar System in A Day400
Electricity Savings From 10kW Solar System in A Month12,000
Electricity Savings From 10kW Solar System in A Year1,22,000

You can multiply your locality electricity tariff to get your savings

As you can see that a 10kW solar system gives good savings but a lot depends on the way you install solar, so you get maximum generation out of it.

Final Verdict: Is it wise to install 10kW solar system:

As your saw above a 10 kW solar system gives good amount of monthly savings and it is a good investment for most home owners as it will give them saving for next 25 to 30 years.

If your house solar requirement is more than 10 kW then you should consider installing a bigger system.

If your budget permits and you have adequate area then you should aim to completely offset your electricity bill.

It is advised to oversize your solar system by 1 kW to 2 kW to accommodate increase in future power generation.

A 10kW solar system is a good investment, one should definitely go for it 👍👍.

If you like this article then please like it and feel free to share it with your friends on WhatsApp, facebook, reddit and anywhere else.

If you have any query regarding solar then write in the comment section, I will try to solve it.

Have a nice day 🙂


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