4 ms·

I'm not sure if using recovered heat from the subway system to generate electricity is economically feasible (probably not). In the end you'd have to eject the

by hx87 10y ago

I'm not sure if using recovered heat from the subway system to generate electricity is economically feasible (probably not). In the end you'd have to eject the heat anyway, probably to the Hudson and East rivers.

jimktrains2 10y ago
Or into the buildings above. Could the heat be used to pre-heat cold boiler water in buildings? Of the low efficiency (but no carbon?) electric could run LED lights or other small electronics. There would be a loss in converting to electric and a loss converting back to heat.