Use natural light during the day
Increase the amount of natural light that enters your home to reduce your need for artificial lighting. Using shutters, horizontal blinds, and skylights, you can naturally light your home to save energy and lower your lighting costs.
How it works:
Using indirect sunlight reduces your need for artificial lighting while minimizing glare and summer heat gain. Step-by-step:
- Maximize indirect sunlight to bring in natural lighting without raising summer temperatures inside your home. To do this, angle shutters or horizontal blinds so sunlight bounces off of them and onto the room's ceiling.
- Improve light penetration by painting interior surfaces (especially the ceiling) with light colors.
Good to know: North-facing windows admit relatively even, natural light, produce little glare, and allow almost no unwanted summer heat gain. Windows that face east and west provide good daylight penetration in the morning and evening, but may cause glare and let in a lot of heat.
If you're constructing a new house, consider natural light as part of your whole-house design — an approach for building an energy-efficient home.