The modern house has its own system of energy supply, the main resources which are electricity, hot water and natural gas. Tariffs on them grow, picking out the family budget increasing part, and before each of us inevitably raises the question: "How can this share at least stop at the current level when galloping energy prices?" Finding ways to solve this problem on the Internet pretty soon leads to the first very simple answer: "We must learn to take the energy source from the outlet, a hot water tap and gas pipes as much as necessary ". The second direction to reduce family expenses - the transition to the use of energy efficient appliances. Third - the creation of autonomous power generating facilities (the latter solution can be fully implemented only in his own cottage and very limited in an apartment house).