Frequently Asked Questions
Photovoltaic Systems
What does kilowatt hour mean?
A watt is a way of measuring a unit of power. A kilowatt is a thousand watts. A kilowatt hour refers to a thousand watt used for one hour. Most electrical bills are measured in kWh (kilowatt hours). For example, 10 x 100w bulbs (1kW) left on for one hour will cost you one kWh of electricity.
How much electricity will a PV system generate?
Will I generate enough to power my home?
This is a very common question, but under the new Feed-In-Tariff program in Ontario, the amount of electricity you use at home is not a factor in considering the size of the solar power system that is right for you. Under the Feed-In-Tariff, all of the power you generate is sent to the grid and your local utility will then pays you for the power you produce. You still receive your normal electricity bill, but now you get a cheque at the same time!
Most residential systems are 1 – 5 kW systems. Typically, a 1kW solar electric system will produce 1000 – 1200 kilowatt hours per year, depending on factors such as orientation and climate conditions. This means:
- A 1kW system produces approximately 105kWh / month
- A 2kW system produces approximately 210kWh / month
- A 3kW system produces approximately 315kWh / month
You can now sell this power to your local utility under the OPA’s FIT and microFIT programs. It is also possible to design a system to provide back-up power or electricity at a remote location that does not currently have grid-tied power. Systems can be scaled to any size, so it is possible to install systems of almost any size to meet your needs.
Are there government incentives for these systems?
Yes. In Ontario, the Ontario Power Authority has created the Feed-In-Tariff program. This program pays 80.2 cents per kWh for clean, renewable solar power produced by systems under 10kW in size. For more information, go to: microfit.powerauthority.on.ca
How much roof space do I need?
Roof space requirements will depend on the size of your system. It is important to have roof space that faces south, south/ west or west and gets sunlight for a significant portion of the day. Solar panels can be arranged in custom configurations based on your specific location. A basic PV system uses five panels that are less than 3'x5' each, so they will require about 75 sq. ft. of roof space.
Our solar technicians can help you with this analysis.
Can I have solar installed on my roof if I am in a condominium or townhouse?
Most condo boards are responsible for maintenance to the outside surface and surrounding area of your home. You will have to discuss the installation with your condo board and be sure that you have approval for a solar installation. Freehold townhomes are as suitable for solar as any other home in Ontario.
If I move, can I take my solar installation with me?
Yes. Moving a system is fairly straightforward but does come with a cost. It is also possible to recover the cost of the system through the increased property value on resale, so it is possible to leave the system in place and invest in a new one at the new home. Your OPA FIT or microFIT contract is transferable to a new homeowner.
Is there any maintenance involved with PV panels?
There are no moving parts, so maintenance is extremely limited.
How often do I have to go up on my roof to clean the panels?
Never. Properly installed systems and the natural weather cycle should deliver an "Install and Forget Solution".
How long do the solar PV panels last?
Solar panels are designed to last a very long time. Many manufacturers have product warranties of 20 years or more which demonstrates the durable and long lasting performance expected from these products.
What is involved in the solar home assessment?
One of our Solar Technicians will arrive at your home to determine if your location is suitable for a solar installation and help you understand your choices so you can select the right system for your needs.
An examination of the installation area, shading, your electrical system and your roof, all provide critical information that will determine the right system for your home. You will receive an Assessment Report that will offer you choices and answer any questions that you may have. The assessment report is unlikely to become out of date, so once completed you can choose to go solar whenever you are ready.
Solar Hot Water Heating Systems
Why would I want to have a Solar Hot Water Heating System installed?
- Reduces hot water heating costs an average of 50%
- Reduces the impact of rising electricity and natural gas prices
- Offers cost competitive and environmentally friendly, clean energy
- Contributes to a healthier environment by reducing greenhouse gas emissions (like CO2).
Does this system eliminate my existing hot water tank and hot water heating system?
No. Solar Hot Water Systems act as the primary hot water heating method, but your existing system remains in place as a backup. By installing a solar hot water heating system, you will use the power of the sun to pre-heat your hot water, cutting down on hot water bills by an average of 50%.
Does it cost more if I use more hot water?
No! Actually, the more hot water you use, the faster your payback on a Solar Hot Water Heating system. This system will offset existing gas or electrical use, so the more hot water you require, the more you save on your gas or electrical bill.
Will a Solar Hot Water Heating system work in the winter?
Yes. The solar hot water heating systems we offer are designed for full season operation and freeze protection to ensure reliability all year round. The solar collectors work regardless of the temperature. Occasional snow accumulation and less sun in the winter can affect performance, but generally this is not an issue.
How often do I have to go up on my roof to clean the panels?
NEVER. Properly installed systems and the natural weather cycle should deliver an "Install and Forget Solution".
Can I have solar installed on my roof if I am in a condominium townhouse?
Most condominium boards are responsible for maintenance to the outside surface and surrounding area. You will have to discuss the installation with your condo board and be sure that you have approval for a solar installation. Freehold townhomes are as suitable for solar as any other home in Ontario.
If I move, can I take my solar installation with me?
Yes. Moving a system is fairly straightforward but does come with a cost. It is also possible to recover the cost of the system through the increased property value on resale, so it is possible to leave the system in place and invest in a new one at the new home.
Are there government incentives for these systems?
Yes, currently the Provincial government is offering a $1250 rebate on residential solar hot water systems. You will require an ecoENERGY assessment to be eligible for these rebates.
What is involved in the solar home assessment?
One of our Solar Technicians will arrive at your home to determine if your location is suitable for a solar installation and help you understand your choices so you can select the right system for your needs.
An examination of the installation area, shading, your existing hot water and home heating system, and consumption behaviour, all provide critical information that will determine the right system for your home. You will receive an Assessment Report that will offer you choices and answer any questions that you may have. The assessment report is unlikely to become out of date, so once completed you can choose to go solar whenever you are ready.
Solar Pool Heating Systems
How much will a solar system save me on pool heating costs?
Energy prices are continuing to rise, while solar energy is a clean renewable source of power. According to Natural resources Canada, "Over a 15-year period, you could spend five times or more on heating with gas what you would spend on installing a solar heater today. Once your solar system is installed there are no more heating bills to pay."
Solar is a smart investment that will save you money season after season.
How long will a solar pool heating system last?
These solar systems are very durable and low maintenance, often lasting much longer than gas or electric heaters. Solar pool heating systems generally will last beyond 15 years.
When can I use my solar pool heater?
Solar pool heating systems are designed for seasonal use. You can turn them on in the Spring and shut them down over the Winter. These systems will actually extend your swimming season at a reduced cost as you will no longer need to pay for pool heating bills.
Are solar pool heaters good for the environment?
Yes. Solar Pool Heaters eliminate the need for gas or electrical pool heaters. This reduces your dependence on fossil fuels through the use of clean, renewable solar power.
