Photovoltaics (PV), or solar power, is used to convert the sun’s energy directly to electricity. From single cells used to power calculators to multi-megawatt solar farms, PV has numerous uses in the modern world. In recent years the cost of PV has decreased dramatically, so much so, that it is now competitive with non-renewable energy sources like oil and coal.
PV solar costs per kWh have dropped by almost 50% in the last 10 years. This is a of improvements in equipment efficiency, production capacity and along with decreases in equipment production costs.
There has never been a better time to go solar!
Nova Scotia Power Inc. power rates have increased, on average, by 5% per year for the last 10 years. It is generally accepted that rates will continue to increase year by year indefinitely.
By producing your own power, you can significantly reduce your home energy costs.
South-facing roofs are ideal for solar power. East/West-facing roofs can be suitable depending on other factors such as pitch and tree cover. However, ground mounted and sun-tracking arrays are also excellent options.
The slope of your roof will determine how much sun your panels will have access to.
Ideal slope is between 20º and 60º from horizontal?
Factors such as tree cover, and other obstructions need to be taken into consideration when placing your array.
A professional home assessment is the best way to know your home's suitability for solar power. ACE members are entitled to a free home assessment.
The information included in this page is taken, with permission, from a document prepared by Peter Ritchie.