It is presently essential to project the energy utilizations of houses. Due to the rising oil costs, it might be crucial to concentrate on ways to save energy. The use of appropriate materials during building can help to keep a house hot during winters. This will assist you to decrease your energy utilization during the cold season. Similarly using good materials and adequate ventilation techniques the quantity of energy for air-conditioning can be reduced. A good architect can be able to help to pick out the best materials. Conversely, you can use renewable energy sources to provide electricity to your house. For instance, there are individuals that produce their own electricity by using photovoltaic cells. The investment will be profitable in the forthcoming years. People can also utilize solar water heaters to heat water in order to preserve energy. One French text that I have come across recently is energie solaire and this should assist you. There are some countries that are giving their citizens subventions to buy renewable energy sources. You can investigate whether your state offers such incentives. Other states are providing loan facilities to its inhabitants for the purchase of alternative energy equipments such as hot-water heaters. This may give you admission to some cash facilities at a preferential rates. Even if you might consider this as an additional debt you must also be aware that in the long term this will pay off. See also: organic food farming