5 ms·
So I did the math and the average water tower holds something like 1/2 kWh worth of power. (50m tall, storage of 1m gallons, efficiency of 90%) Hydro power sto
by Guvante 5y ago
So I did the math and the average water tower holds something like 1/2 kWh worth of power. (50m tall, storage of 1m gallons, efficiency of 90%)
Hydro power storage is fantastic but needs truly ridiculous amounts of water and height deltas to make sense.
- avalys 5y agoYou’re telling me I could fill a typical water tower in 1 hour with a 500 W pump running off a kitchen outlet?
- rightbyte 5y agoReally good sanity check concept!
- deleted 5y ago[deleted]
- ClumsyPilot 5y ago500W is a lot, it is hypothetically enough to move 10 liters of water 50 meters up every second. A motor on a cycle an electric bike is 250w. A kitchen tap provides like what, 0.2 liters per second?
- bigiain 5y agoSo in an hour that's 36000L of water pumped up into the hypotheticals 1 million gallon tank. Right on the three orders of magnitude short that a previous commenter pointed out.
- ClumsyPilot 5y agoSounds like they confused W and kW then?
- Guvante 5y agoCalculator said 400W for 1000L/s and my mental sanity check missed the duration units and thought 400W can move a ton of water.
- Aperocky 5y agoYou probably made a mistake somewhere. 3.8Mg * G * 50m ~ 1700M Joules which is about 500kWh.
- NemuriBaku 5y agoI suspect the k in kWh leads to the occasional factor of 1000 error.
- hnuser123456 5y agohttps://www.wolframalpha.com/input/?i=gravitational+potential+energy+of+8+million+lbs+at+150+ft https://www.wolframalpha.com/input/?i=gravitational+potentia... I got 450 kWh? Maybe you meant 1/2 MWh
- Guvante 5y agoMust have been a bad calculator. It claimed 1000L/s was 400W.