Notes

• Figures for savings are indicative only. Assumptions below.
• The most savings can be made by switching to energy saving bulbs in areas where the lights are on for the longest, such as living rooms, hallways and stairs.

Assumptions

• We assume you replace 100 Watt ordinary bulbs with 20 Watt energy efficient bulbs.
• We haven't factored in the costs of the bulbs because although enery saver bulbs are more expensive than ordinary bulbs they last much longer, so overall bulb cost is approximately the same.
• We assume electricity costs 20 cents per kWh.