Solar energy. The source of Earth's solar power: the Sun. Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.
A general guide to follow for your water line: 1  The average single or 2 family home with 2-4 bathrooms and 2 kitchens, will most likely require a 1â-1 Â¼â copper water line. 2  3 family homes will most likely require a 1 Â½â copper water line.
1/2, 3/4 and 1 PEX pipes sizes are the most common for residential and light commercial installations. The end use or application ultimately determines which size pipe to use, with most common being: The size of Plumbing PEX is usually determined by the end use, or end application, with most common being: 1/2 PEX plumbing tubing is the most common of all sizes and is typically used in conjunction with PEX plumbing manifolds to carry hot or cold water to plumbing fixtures.