Photovoltaic system generates free electricity by converting sunlight into electricity. The generated energy provides pollution-free power source that is expected to meet the energy demand of the house.
Solar water heater
Water heaters are considered among the highest home appliances that consume energy. Migrating to solar powered water heaters will reduce electric bills dramatically.
Although the initial cost of LED lamps is usually higher than other lighting types, but their lifespan and electrical efficiency which is several times longer than other types will definitely reduce cost on the long run.