Questions & answers

Will solar panels damage our roof?

Potentia Solar uses ballasted racking systems to support the solar panels on the roof. Ballasted racking does not penetrate roof surfaces, leaving roof integrity fully intact.

Are solar panels heavy?

A solar panel installation adds approximately 2 to 5 lbs of load per square foot, on average. Before any installation begins, we conduct a structural survey of the roof to ensure that all solar PV installations can be completed safely and without causing damage.

What happens when I have to replace or repair my roof?

Potentia Solar works closely with our customers to accommodate any maintenance on the roof. Specific needs of our customers are noted in the lease agreement.

How much rooftop space do I need for a solar PV installation?

A typical solar PV installation requires 160 sq ft per watt of solar PV capacity. Potentia Solar targets installations between 30 kW to 500 kW, which require 30,000 to 150,000 sq ft of suitable rooftop space respectively.

Are all my rooftops suitable for solar PV installations?

Not all rooftops are suitable. Structural integrity, direct sunlight, square footage and a roof that is in good condition are all basic requirements for a viable solar PV installation.

What happens after the 20-year lease expires?

There are several options available to the building owners after the initial 20-year roof lease term expires. They could purchase the system, renew the lease or have Potentia Solar remove the installation.

Does weather impact the solar PV units?

It goes without saying that solar PV works most effectively when it is clear and sunny. Rain impacts the solar panels in a positive way by clearing away dust and dirt that may have accumulated.

What about snow on solar PV units?

Fresh snowfall will generally melt off solar PV panels on its own if the sun is shining. In some cases, such as after freezing rain, it must be cleared by hand. Potentia Solar assumes responsibility for this service under our general maintenance obligations.

How long will it take to complete the solar panel installation?

Potentia Solar crews require two to four weeks to complete a standard solar PV installation.

How often is maintenance required?

We perform standard maintenance on solar panels four times annually. However, cleaning of the panel surface will be performed a minimum of twice a year by our maintenance staff.

Are there any other benefits for the building owner?

National surveys consistently show the environment is a major concern for Canadians, resulting in demands on building owners to be environmentally responsible. A solar power installation on a building roof can help a building acquire LEED points and ultimately attract tenants. Each new installation also adds clean power to the Ontario grid.

How long do solar PV panels last?

Many solar PV manufacturers guarantee their panels for 20 to 25 years. Potentia Solar only purchases high quality panels from best-in-class manufacturers who provide minimum 20-year performance guarantees.