A contractor once told me: "You want to save energy at home? Put extra insulation! That is the easiest, lowest maintenance and cheapest in the long run."
Sage words.
When I built my new home 3 years ago I followed his advice. I added about $2600 in extra insulation and better windows, which in the total cost of a new home, is nothing. People spend more than that in bathroom fixtures.
Nowadays, although this new home is about 40% larger than my older one, my energy consumption is about 5% lower.
Another one, but this is a long time investment: trees. Two or three strategically located shade trees can do wonders during summertime in our south Texas weather.
Hi,
Shade trees, good idea. The energy from the sun is about 1000 watts per square meter. That's a LOT of energy hitting the roof. That's plenty of heat in the summer time. The difference is amazing. California or parts of California outlawed dark colored roofs in new constructions for that very reason, to conserve energy in the summer time.
It always amazes me how much energy we get from the sun when we get direct sunlight. If we could harness that 1000 watts per square meter it would power a microwave oven, air conditioner, water pump, TV, computer, etc., with about 3 square meters of solar panels. On the practical end though the panels are not that efficient, and we have to store more energy in the daylight hours than needed for use at night. That ups the square footage of solar panels needed by a lot, as well as brings in the need for some sort of energy storage system.