Net zero energy describes buildings whose energy consumption and emissions are fully offset by renewable energy, preferably generated on site. True to their net zero name, they generate as much or more clean energy as they consume.
The new addition to Calvert High School in Prince Frederick, Md., celebrates the sun, inviting daylight into virtually every corner of its multi-use media center. The addition features huge skylights that are 31 to 41 ft above the floor, more than 35 ft long, and pitched at a 16-deg angle. The skylights span 17,000 sq ft.
Advanced lighting has brought us not only energy savings, but also a slew of new screw-in-a-light bulb jokes. For LEDs, it usually goes something like this: How many people does it take to screw in a LED light? One. And a roomful of deep wallets to pay for it.
Maybe you just got to the office, grabbed some coffee and pulled up to your desk to start your day. Your printer sits innocuously next to your lamp, computer and phone, but they feed an insatiable monster — they all draw electricity around the clock.