Alain Sepeda <[email protected]> wrote:
> I'm not convinced Powerwall will be less expensive than LENR capacity, but > why not. > I do not think of full-scale power wall would be needed with a cold fusion generator. The PowerWall has 7 kWh capacity. I think that a steam turbine cold fusion generator will take some time to reach peak output, so it will need some sort of buffer -- either a battery or a super capacitor. You also needs something for power spikes and short-term load leveling. When you turn on most machines they tend to spike momentarily. I suppose 1 or 2 kWh would be enough. I assume that the cold fusion generator would be large enough to meet peak demand, but it might take ~5 minutes reach the highest power level. https://www.teslamotors.com/powerwall In the message I wrote before, ". . . in this scenario they have a Tesla Powerwall, so they do not need a generator capable of peak demand," I meant the scenario with solar panels and a small gas-fired backup generator. Suppose your average daytime use is ~8 kWh per hour, with an occasional peak of 14 kWh for one hour. I think an 11 kW gas backup generator plus a Powerwall could meet this. During the day the Powerwall would fill up with solar PV power. On rainy days or at night the gas generator would turn on, as needed. Before you run the washing machine, you might check the Powerwall screen to see if there is enough solar power + generator power + plus stored Powerwall energy. If it says "washing machine cannot be run" you press a button to turn on the gas generator. It runs until the Powerwall battery is full. The machine beeps and you know you can now run the washing machine. This kind of monitoring and juggling of resources would not be necessary with cold fusion. - Jed
