Ways to save electricity
General advice (Nielsen and Dyck-Madsen 2006)
- switch to energy efficient luminescent lightbulbs
- check the timer on your circulation pump - alternatively, replace with an energy-efficient pump
- check that all appliances are completely turned off - especially chargers
- turn on only appliances in use
- purchase the most efficient appliances
Advice on lighting (Jacobsen 2002)
- switch off unnecessary lighting. Install timers and light and motion sensitive equipment.
- paint walls and ceiling with light colours. Also reduces discomfort from glare and light trespass.
- Choose the correct lighting. Use appropriate workplace lighting.
- Use halogen lighting for impact lighting, rather than area/flood lighting.
- Use high-frequency flourescent lighting, "HF". They have longer lifetimes and reduced flickering.
- Exploit daylight using automatic light sensitive monitoring.
- Regular maintenance.
Standby advice (Jacobsen 2002)
- Turn off all equipment when not in use.
- Install automatic slumber mode where possible.
- Turn off screens when absent for longer periods.
- Purchase appliances marked with "Energy Star" or equivalent.
- Choose flatscreens.
Table 1. Examples of energy saving advice. Electricity price of 2 DKK/kWh.
DKK | kWh | Advice |
630 | 315 | Substitute 1 desktop and 1 old desktop terminal with an energy efficient laptop |
560 | 280 | Exchange 7 incandescent bulbs with energy efficient ones |
364 | 182 | Exchange an old fridge and freezer to a new energy eficient model |
122 | 61 | Plug TV and miscellaneous into an energy saving multisocket |
180 | 90 | Plug computer and miscellaneous into an energy saving multisocket |
560 | 280 | Exchange manually controlled heat pump to energy efficient automated heat pump |
56 | 28 | Only run washing machines with full loads, saving every fourth wash (40 degrees, old machine) |
824 | 412 | Dry your clothes outside rather than in a tumbler half the time (old tumbler) |