There are a number of benefits that come with designing a home to accommodate natural light into living areas and bedrooms. The more natural light you have in your home, the less lights you have to turn on, and the less electricity you use. It may surprise you, but about 10% of household electricity usage comes from lighting alone! Another benefit, which is also related to energy use, is that natural light can also help heat homes by way of storing the heat from sunlight into a thermal mass such as your slab, concrete or brick wall; this then allows the heat in the thermal mass to be distributed throughout the house day and night.
