## How do I calculate how much solar power I need?

How Much Power Does Your Household Require? Your household’s average power requirement can be calculated from your past utility bills. To calculate the number of solar panels needed, you must multiply your hourly energy consumption by the peak sunlight hours in your region. Divide the result by a panel’s wattage.

**How big of a solar system do I need calculator?**

To determine the number of panels you need to achieve a given solar system size, divide it by the wattage of each panel (which averages around 320 watts). For example, if you’re aiming for a 4 kW system, you’ll divide 4 kW (or 4,000 watts) by 320 watts to get 12.5.

### How many solar panels do I need to run Canada?

The average solar panel is approximately 18sqft in size (including some buffer room for racking and spacing) and produces about 300watts of power. *Nova Scotia receives an average of 1090 hours of sunlight annually. A typical home needs between 20 and 25 solar panels to cover 100 percent of its electricity usage.

**How many solar panels do I need for a 2000 sq ft home?**

12-18 solar panels

So, a 2,000 square foot home would be allowed a solar array of 4,000 watts. Depending on the type of panel that you choose, a system of this size would be anywhere from 12-18 solar panels. Keep in mind, this formula to estimate consumption varies depending on who provides your electricity.

#### What size solar system do I need to run a fridge?

The average domestic fridge uses 350kWh of electrical energy per year and would need 300 watts of solar panels to supply it. A 100Ah would also be needed as reservoir to supply compressor motor surge current and to run the fridge through the night when the solar panel generates no power.

**How many solar panels and batteries are needed to power a house?**

The average American home needs between 19 and 23 solar panels based on the average electricity usage of 877 kilowatt-hours (kWh) per month. Installing that many solar panels would cost between $13,000 and $16,200 after the federal solar tax credit.

## How many kilowatts do I need for a 3000 square foot house?

home came in at 12,271 kWh, and residences that measured 3,000 sq. ft. or greater used an average of 14,210 kWh in 2015. As you compare your usage to those averages, think about why your electricity use may be higher or lower.