BC has some of the lowest priced electricity in the world. So, over the short term the financial payback of PV on grid-connected buildings does not look good. However, if you evaluate the financials over the lifetime of the system it will have a positive net return on investment. Currently, a PV system is more like a hybrid vehicle; it does save some money, but is generally installed more for environmental or energy security benefits. It is definitely more cost-effective for off-grid buildings.
Posted in: Frequently Asked Questions - Photovoltaics