Our local park has solar panels that are used to power the trail lighting. There are about 40 individual installations, and we believe the lamps act on a light sensor that operates using standard dusk till dawn settings.
All of our restaurants are fitted with Energy Smart LED lights, with back of house spaces being sensor sensitive so they switch off when there is no one around.
We recently converted all lighting from the restaurant to LED fixtures, saving us $ 700 per month. However, after finding these other LED filament bulbs- which adapt much better to our style of globes- we could not resist converting them another time.
Despite their retro appearance and high power (they are turned on at a minimum), these bulbs consume only 4 W of electricity, against 7 W from the previous LEDs, and 50 W for the initial halogens.
I have seen a few installed Sloan solar faucets, which use the ambient INDOOR light to power the faucet sensor, turning it on and off automatically.
DFW Airport has implemented a parking garage lighting system which serves to visually indicate open parking spaces as they become available. The design helps to minimize unnecessary emissions created by drivers as they search for an open space. Small LED lights at each space in the garage are visible from the ends of aisles, and allow drivers to quickly spot a free space without having to continually circle the garage.
The light sensors also communicate with exterior and aisle signage in real time, letting drivers who enter know which floors have open spots, and preventing further unnecessary driving. As an added benefit, open designated spaces such as accessible and 1-hour parking spaces can also be distinguished by color-coded lights.
This system not only improves the overall efficiency of parking flow and operations, but may serve to provide less opportunity for driving aggravation and accidents within the garage.
Our camp is thoughtfully designed to take full advantage of available natural light, within our domes. Not only does this serve to save on indoor lighting, it provides for a magnificent outlook on our extraordinary surroundings.