6.6 kw solar system

If your home is suited for solar, you’ll need a roof sapce between 25 – 35 m² to install a 6.6 kW solar system.

Solar panels come in various sizes, depending on the manufacturing company, as we mentioned above.

A panel measures 1.7m x 1m in size. It consists of 14 to 20 panels, based on the wattage.

For instance, you may plan to install a solar system with 370 W per panel. In this case, a 6.6 kW system will consist of 14 solar panels.

To determine if your roof has enough space, first, you need to know if your roof is suitable for solar, if it has multiple orientations or if it is made of hazardous material.

The below table shows the average solar panel per kW costs of some countries.

Therefore, the rough cost of a 6.6 kW solar system in Germany should be —$1113*6.6=$7345.8

Likewise, the rough cost of a 6.6 kW solar system in France should be—$1074*6.6=$7088.4

There are three important factors that influence the cost of solar panels:

• Wholesale equipment costs: as a young industry, factories have been able to automate processes, increase manufacturing and logistics scale and reduce the cost per watt of a solar installation dramatically.
• Compensation: In order to encourage households to select solar energy, the government implements intriguing policies to attract citizens to select solar energy, such as Solar Rebates. The introduction of local solar rebate schemes. In particular states, there has had a dramatic effect on the cost of solar.
• Competition and Cheap Solar: there are thousands of contractors to install solar. As a result, the margins have been forced to be very slim in the market.

On average, a 6.6 kW system will save the homeowner $56,521 during the course of its lifetime, with an average annual savings of $1,222.0 per year. The actual amount a homeowner will save is dependent on the amount of power used in the home, the orientation of the solar panels, and the quality of the system.

This is because a 6.6 kW solar system will produce on average 21 kWh per day; multiplying that by the number of days in a month (30), and this will amount to 630kWh of energy (21kWh×30=630kWh); multiplying that by the number of days in a year (365), and this will amount to 7,200 kWh of energy (21 kWh x 365 = 7,665 kWh).

The average price of electricity in Germany is 0.333 U.S. dollar per kWh for households and 0.260 U.S. dollar for businesses. Now, if your household somehow used all of the 7,665 kWh of energy produced by the solar system in one year, you would still reach an annual saving of $2552.445. As you can see, the electricity price in these countries are very high, so the solar energy is a great alternative.

Even if you do not run out of all the power they produce, you can still save a lot of money in the long term because  you do not need to pay electricity bills.

A 6.6 kW solar system is certainly powerful enough to cater to the average electrical needs of a four-to-five person household.

However, power compatibility depends on:

• Utilities and home appliances that consume energy. Therefore they determine the maximum power usage in your household.
• Your lifestyle. If you work at home, you’ll consume power all day.
• Any electrical vehicles you own. If you have a Tesla or plan to buy one, a 6.6 kW solar system won’t be enough to power both the car and your household.
• Your average daily energy usage during summer and winter.

Your solar system power compatibility depends on the above-listed factors and how these align to installation in your area.

To understand if a 6.6 kW system can power your home, you’ll divide your average daily usage by the local peak sun hour. You can find your average daily use on your electricity bill.

Average daily usage (kWh) / the local peak sun hour=Your recommended solar system size. Once again this is because a system will produce the times of the local peak sun hour its size in power per day.

If the kilowatt per hour displayed on your home electricity bill shows you consume 20 kWh per day, and the peak sun hour is 4 hours, a 6.6 kW solar system will be enough. Anything higher than 20 kWh usage per day implies it won’t be sufficient.