A. Condensation is not caused by double glazing (although new windows can sometimes make condensation problems worse, by cutting out draughts). Treatment for condensation is ventilation (to vent moisture-bearing air to the outside) and heating (to raise surfaces above dew point temperature).
A typical residential solar PV panel system in the U.S. costs $3.60/watt after installation, and the solar panels typically save the customer over $20,000 (net) over the course of 20 years. Learn more about the many advantages of solar energy. typical residential solar PV panel system in the U.S. costs $3.60/watt after installation, and the solar panels typically save the customer over $20,000 (net) over the course of 20 years. Learn more about the many advantages of solar energy.
The typical residential solar system will cost between $12,000-$20,000 once solar rebates and incentives are taken into account. However, this is a small price to pay given that you will probably spend over $72,000 on electricity over the life of your solar system.