I really need help, what kind of renewable energy is used for hot water? I know that Geothermal heat pumps can be used to heat a house up, but what can create hot water? Thanks.
Geothermal energy comes from the earth.
http://en.wikipedia.org/wiki/Geothermal_heating
Okay thank you!
You're welcome.
To generate hot water using renewable energy, there are several options available. One common and efficient method is through the use of solar energy. Solar water heating systems harness the power of sunlight to heat water for domestic or commercial use. Here's how it works:
1. Solar Collectors: A solar collector, typically mounted on the roof, consists of a series of tubes or panels that capture sunlight. The collectors are designed to absorb the heat energy from the sun and transfer it to a fluid, usually water or a heat transfer fluid.
2. Circulation System: Within the solar water heating system, there is a circulation system that transfers the heated fluid from the collector to a water storage tank. This can be accomplished through either a direct or indirect circulation system.
- Direct Circulation: In this method, the water to be used is circulated directly through the solar collector, where it is heated and then transferred back into the building for use.
- Indirect Circulation: Here, a heat transfer fluid (such as a mixture of water and antifreeze) is circulated through the collector, absorbing the heat before transferring it to a heat exchanger inside the water storage tank. Inside the tank, the heat exchanger heats the water that will be used.
3. Water Storage Tank: The heated fluid, whether directly or indirectly, transfers its heat energy to the water stored in a well-insulated tank. This tank acts as a reservoir, ensuring a supply of hot water even after the sun sets or on cloudy days.
4. Backup System: To ensure a consistent supply of hot water, solar water heating systems often include a backup heater, such as an electric or gas water heater. This backup kicks in when the solar energy alone is insufficient to meet the demand or during periods of low sunlight.
Solar water heating systems are eco-friendly, cost-effective, and can significantly reduce reliance on traditional energy sources for hot water. Before installing a system, it is advisable to consult with professionals to determine the feasibility and appropriateness for your specific location and requirements.