Daniel Burnam wrote:His boat has a 425hp diesel caterpillar motor and he says he burns about 35 gallons of fuel/day on average. Just a quick search on the internet and some simple math says that he's using about 1 megawatt electrical equivalent in diesel fuel
S Bengi wrote:Fossil Fuel to Electric Motor Power loss
0.9 MW delivered to propeller
0.90 * 1.0 megawatts due to electric motor inefficiency
0.80 * 1.2 megawatts due to battery inefficiency
0.80 * 1.4 megawatts due to battery charger inefficiency
0.92 * 1.5 megawatts due to transmission power loss
0.30 * 4.5 megawatts due to power generation loss. (combustion heat lost, mechanical-gear-friction lost, alternator lost, system losses)
4.5 MW of diese/fossil fuel
Daniel Burnam wrote:Excellent thank you.
I don’t have intentions on plugging into the grid. The wind on the coast of Maine is in my experience strong and consistent/predictable and the tidal swing is huge. My hope was to generate that sort of power using tidal and wind.
So that’s my next line of inquiry (probably for another forum) . Now that we have an idea of our basic power needs, how to determine the generator requirements to meet those needs