Awhile back I subscribed to my electricity provider's -- Portland General Electric -- Green Source Program, where the electricity I receive is 100% renewable.
They just sent me my annual statement for 2016. Turns out that this clean power costs me only an extra nickel a day.
In 2016, I used a total of 2,378 kWh -- an average of 198 kWh per month. (The average residential use is 901 kWh/month.) Total cost = $408. To make it green, I paid an extra $19.01, which works out to $0.008/kWh -- an extra 4.9%. Or $0.052 per day.
A nickel a day. $1.59 per month. Which I can easily afford. Who couldn't?
PGE said my purchase of green electricity saved 3,755 lbs of CO2 emissions -- 1.71 metric tons, when the average US per capita emissions is now 16.9 tonnes.
And that this was equivalent to not driving 4,190 miles. (So they're assuming 0.41 kg of CO2 emitted per mile.)
I drove 6,743 miles in 2016 (I keep track for tax purposes, and also personal interest). Avg = 27 mpg. Much of it up to Portland for lacrosse games, volleyball games, soccer games and swim meets. Hey, I'm a great uncle.
I'm also now buying green offsets for my natural gas usage, but I don't have much data yet to report.