For Electric & Natural Gas Customers
Adding window film can be a cost effective way to lower your cooling and heating bills. The film works by reflecting and absorbing the sun’s heat passing through the glass. This can reduce heat gain during the spring and summer months by as much as 77% and retain up to 60% of household heat during the fall and winter months. The film also reduces the glare on television, laptops and computer monitors.
There are two types of window film available; dyed or metalized. Dyed films absorb and reflect solar heat considerably better than they would insulate against heat loss. Metalized films reflect solar heat and insulate household heat very well.
Find more information about window film
on the Energy.gov website.