How many kWh did you use last month?
(for your household)

The average for a US household is 900 kWh ... this poll is for anyone who can answer it internationally

@futurebird Yikes. My consumption in Canada is high! For a 5 person household with all electric heating/cooling/appliances and an EV: average is 3400 kWh

@nickspacek
Holy shirt! I don't feel so bad, now

Does your home have any insulation?
@futurebird

@DelilahTech @futurebird Looks like we average something like 750 kWh monthly charging the car.

How many kWh did you use last month?
(for your household)

The average for a US household is 900 kWh ... this poll is for anyone who can answer it internationally

@futurebird
Not answering the poll since you indicated it was for international folks.

Electricity
1,179 kWh from grid
115.2 kWh from solar
Our solar system went online around noon on September 23rd and the billing cycle ended on September 26th.

Natural Gas
1.17 kWh equivalent

How many kWh did you use last month?
(for your household)

The average for a US household is 900 kWh ... this poll is for anyone who can answer it internationally

@nickspacek @DelilahTech

That's more that I use for the whole apartment.

But who knows how much the subway costs per person...

@futurebird @nickspacek @DelilahTech

> But who knows how much the subway costs per person...

This is a fascinating question I've never thought about before. A quick lookup indicates a total annual energy consumption of ~2100GWh (https://www.nyserda.ny.gov/-/media/Project/Nyserda/Files/Publications/Research/Transportation/23-19-Subway-System-Energy-Usage-and-Electrical-Storage-System-Applications-Analysis-acc.pdf) and ~2B annual rides (https://en.wikipedia.org/wiki/New_York_City_Subway).

If accurate, that comes out to almost exactly 1kWh per trip.

@prattmic @futurebird @nickspacek @DelilahTech Isn't the classical analysis to calculate the cost of taking one additional rider on one additional trip? The more riders the system has, the less it costs to add one more, until reaching the maximum capacity of the existing infrastructure.

Even so, 1 kWh per trip is efficient. That's roughly equivalent to traveling half a mile by large car, or a mile and a half by fuel-efficient hybrid--on the highway, not city stop-and-go.

@log @futurebird @nickspacek @DelilahTech I’m not sure what the classical analysis is, but I agree that the marginal cost of an additional rider should be tiny, especially compared to a car.

@prattmic @log @futurebird @nickspacek @DelilahTech would be interesting to see how marginal cost compares to e-bike — if I believe the display, I get about 60 miles (10 one-way commute trips) per kWh (840Ah battery, actual miles seems about 60/charge).

@dr2chase @prattmic @futurebird @nickspacek @DelilahTech E-bike and electrified light commuter rail are the grand champions of transportation energy efficiency, no question. But I think we'd need to know mean distance per subway system trip to compare wheels-to-steels.

How many kWh did you use last month?
(for your household)

The average for a US household is 900 kWh ... this poll is for anyone who can answer it internationally

@futurebird Including gas too? Or just electricity?