Natural Lighting
Savings rating ★★★★★
The best energy savings result from replacing an electric bulb with natural light. Buildings can be designed to take the best advantage of day light.
You can increase natural light benefits to reduce electric lighting, through technologies such as:
- Ambient light level controls adjust lighting strength as day light in the space changes. The controls can turn electric lights on when ambient light falls below a predetermined level and dim or turn them off when less light is needed.
- Skylights and light tubes bring in natural light into rooms and spaces. Light tubes, also called pipes, capture sunlight from outdoors or a sunlit area and send that light into a darker area.
- Light-colored materials and paint reflect light and can brighten rooms, warehouses and other facilities.
These are especially useful for warehouses, factory or manufacturing floors, and big box stores.
Fill out the customized incentive application and worksheet to apply for a Hawaii Energy custom rebate.

