2,738 MW: The lowest demand for the hour
5% : the percentage drop from the previous hour
8.7%: the difference between the lowest demand of Earth Hour compared to the average for a typical late March Saturday night.
8:54 PM: The time at which that lowest demand was reached.
So way to go! You managed to reduce energy usage for about 5, 6 minutes. Because, as Toronto Hydro supervisor John Fletcher said, "People will forget to put out the lights ... but they won't forget to put them back on." And sure enough, when the giant clock jumped 21:00, then 21:05, the numbers rose as surely as they dropped.
Now I don't want to rain on everyone's parade, but let's look at this Earth Hour thing objectively:
1. No changes will be made because of it:
- businesses will still leave their lights on even though nobody is in the office
- Stores will leave exterior lights on unnecessarily
- Yonge+Dundas Square is still filled with light pollution from those retarded ads
- Nobody did anything about the dozens of power-wasting devices in their homes, such as DVD players, cable boxes, TVs, stereos, computers, and AC/DC converters that are wasting power even when you're not using the device
- No politicians saw all the lights go out and decided "I'm going to support pro-environmental legislation, now that I know how serious the people are about this!"
- 8.7% is a lot, except it was for one hour
- Oh wait, not even an hour, we only saved 8.7% for 6 minutes
- Even if we had saved that for a WHOLE HOUR, that's still only 1/24th of a day
- which adds up to 1/8760 of a year, or 0.01% of the energy used in a year
- That is, it would be 0.01% of the year's energy if Earth Hour had happened during peak usage, which it didn't.
Let's do SOMETHING about energy waste. Let's turn those lights off and KEEP them off.