Friday, February 10, 2012

Power your home with sun and water

Is it really possible, to power your home, with just sun and water? It sounds very simple and a perfect solution, for our energy hungry world. It is true, and it is possible, to generate your own electricity, for all your home needs, without depending upon the grid power. Even when, there is no sun for a week! Let us see how, this is possible. Photovoltaic (PV) solar, is getting popular, and many Governments in developed countries, subsidies the cost of solar panels, and also buy surplus power, at a higher tariff, than the grid power tariff.Goverments are doing this, to encourage more and more people, to opt for solar energy, a cleaner form of energy. Currently, solar panels are set up on roof tops, and the solar energy is used to power your appliances, and the surplus power, exported to the grid. At times of shortage, the power from the grid is drawn, to meet your home requirements. When you import power from the grid, the energy meter revolves in clock wise direction. When you export power to the grid, the energy meter, runs in anti-clockwise direction, indicating the export of surplus power to the grid. At the end of the month, you calculate the net power exported or imported, and accordingly collect the revenue from the Government based on fixed tariff, or pay to the Government based on their bill. But there is a catch! Power distribution companies distribute power, to consumers, at variable tariff, such as peak power and off peak power. The tariffs are high, during peak periods, and lower at off-peak periods. Solar system generates more power when the sun is bright, and generates less power during cloudy times. One should be able to generate solar power when the sun is bright, use it during the peak period. But grid tariff is at peak normally during the daytime, between 9 and 5. And lower at night time, between 6pm to 6am. Therefore, one should be able to generate power during bright sun shine, and use it during peak period. That means you should be able to generate your required power during the daytime, and use them in the night, because you don’t use much power, during daytime. How to overcome this anomalous situation, and still to meet your hundred percent power requirement at home? We can offer you a system that will generate power, while the sun shines. This power will generate Hydrogen gas, from pure water, and store it under pressure. Stored Hydrogen is your stored energy. It is like your overhead water tank. You can pump water and store it in the overhead tank, and use it, whenever you need it. But, your solar generated electricity cannot be stored in this way. You can store it, in a battery bank. But, these lead acid batteries are heavy, it requires regular maintenance, you cannot draw stored power from the battery more than 80% of its stored capacity, and finally, batteries have certain life span, usually 3-5 years, when it has to be substituted, with new batteries. If you calculate, the economics of solar system for its whole life cycle of say 10-15 years, including all battery replacements and maintenance cost, the initial investment will be high. In spite of all these expenses, one cannot guarantee with uninterrupted supply of power, to your home. But, you can store Hydrogen gas, any quantity, without any loss. You can generate your own electricity, using this stored Hydrogen, as and when, you require. You can still export your surplus power to the grid, and also meet all your power needs, even during peak periods! The overall cost of the system is higher, than solar grid connects system but it will offer you, an uninterrupted power, throughout the year. You will be eligible for carbon credit, and your system will earn you money, as you relax at home, with no worries about mounting power bills! The cost of energy keeps rising, as the oil prices go up. You may even be able to generate and store more Hydrogen, to fuel you car, like Honda FCX.Hydrogen solution is the solution of the future. We can design, engineer and install a system to meet your specific needs. Of course, we need to study your specific requirement, and suitability of your location.