You recently (November 1) responded to a problem about condensation on the outside of double-glazed windows; I have a similar problem, except mine is on the inside. I have bought a flat where double glazing was installed about four years ago. My flat is heated and there is a radiator under the window in the bedroom.
Most homeowners are paying $3 to $4 per watt to have solar panels installed in Los Angeles, with the average cost of $3.57 per watt. Using 5-kilowatt hour translates to an average gross amount of $12,500 after the Federal ITC discount.
An array able to produce this much power must 4 kW or larger (based on 5 sun hours per day). The average cost of a solar system of this size is $17,000 and ranges from $15,000 to $20,000 installed (not taking any incentives into consideration). In This Guide. Average Cost and Factors that Affect it. Grid-Tie versus Off-Grid Installations.