Save energy and money
Too much of anything is waste.
Light that goes into the sky without consideration wastes energy and money.
Environmentally responsible lighting brings energy efficiency and conservation. Understanding good lighting principles is easy and something that everyone from the federal government to the local community can do.
You can help by:
1. Installing quality outdoor lighting that cuts energy use by 60–70 percent and saves billions of dollars and cut carbon emissions.
2. Only using light when you really need it.
3. Fully shielding outdoor lights, and directing them down where it is needed, not into the sky.
4. Using light sensors, timers and dimmers and technology help reduce energy use and saves you more money
5. Turning off indoor lights, such as empty office buildings at night
6. Utilising warm coloured globes to keep our wildlife happy
The International Dark-Sky Association estimates the US uses 120 terawatt-hours of energy, mostly used in carparks and street-lighting. About 30 percent of this is wasted due to unshielded or misused lighting. This equates to $3.3 billion and the release of 21 million tons of carbon dioxide per year. To offset all that carbon dioxide, we’d have to plant 875 million trees annually.
Want to know more?
We recommend the below resources:
LED Practical Guide - International Dark-Sky Association.