Energy Diary - Learning Questions

What is the common unit of measurement for energy data?

Show answerkW/h

In the days before electric light, how did the owners of factories and mills provide enough light for the workers?'

Show answer They built the mills and factories with very large windows and put the machines near the windows.The buildings would have large south-facing windows. Fires and candles would provide a fire-risk.

Which is currently the most energy efficient light bulb?

Show answerCompact fluorescent light bulbs.