Location Requirements


Things to consider...

Although a lot of properties are suitable for solar, unfortunately not all are.
  • Orientation

    Which way does your largest roof face?

  • Size

    How many panels will you be able to fit on your roof?

  • Shading

    How many trees or buildings are obstructing the sunlight?

  • Usage

    Your system can eliminate your power bills, but the net metering program is designed so that participants can be “Net Zero” but not necessarily profit from the sales of electricity. Read About "Net Zero"

  • Roof orientation and space.

    A Southern exposure is perfect for solar systems. This allows them to receive sunlight for most of the day.


    The size of your roof determines the number of PV panels you will be able to fit. They are 40″ x 65″.

  • Usage

    The amount of power you use also determines the maximum system size. NSP requires that home owners size their solar systems based on historical usage.

  • Shading

    Again, the name of the game here is to get optimal exposure to the sun. This ensures a higher production. Sometimes surroundings can inhibit performance.

Service Size:

Most homes in Nova Scotia have a 200 amp service, however, it is not uncommon to see different sizes. The size of the service helps to determine the maximum size of system you can install. For example, a 200 amp service would allow for 50 amps of solar. This would be one 20 amp breaker and two 15 amp breakers. Since we can only load the breakers to 80% of their capacity this would limit us to either 16 IQ7 micro inverters (one amp each) per 20 amp breaker (12 on a 15 amp breaker), or 13 IQ7+ micro inverters (1.208 amps each) per 20 amp breaker (9 on a 15 amp breaker). This means the max system size for a 200 amp service is either 40 panels that are paired with the IQ7 micro inverter, or 31 panels paired with the IQ7+ micro inverter.
16 panels (with IQ7) or 13 panels (with IQ7+)
24 panels (with IQ7) or 18 panels (with IQ7+)
28 panels (with IQ7) or 22 panels (with IQ7+)
32 panels (with IQ7) or 26 panels (with IQ7+)
40 panels (with IQ7) or 31 panels (with IQ7+)
80 panels (with IQ7) or 62 panels (with IQ7+)

Bus Bar Ratings

In the event that the bus bar rating is higher than the service size you can add that amount to the allowable amps for solar. For example: A 100 amp service with a 125 amp bus bar would allow for 56 amps of solar, or, two 20 amp breakers and one 15 amp breaker - allowing for more solar than a 200 amp service.

Try our calculator

You can find out what size of system you will need to eliminate your power bill.