One Point Twenty-One JigoWatts ??!!! Let's have some fun doing order of magnitude calculations on Tesla power use! DeLorean time machine - Wikipedia, the free encyclopedia Many of us know the reference from Back to the Future that it takes 1.21 GigaWatts to power the Flux Capacitor. How many Teslas does it take to use 1.21 GigaWatts, and other than the movie reference, why is that number interesting? If you look at List of countries by electricity consumption - Wikipedia and realize that there are 365.25*24 hours per year, then the average U.S. electrical consumption is 432 GigaWatts and the average world consumption is 2,146 gW. 1.21 gW is 0.28% and 0.056% respectively of those numbers. 1.21 gW is also the level of power that the largest power plants can produce. List of power stations in Washington - Wikipedia and Power station - Wikipedia So, coincidentally, 1.21 gW, at a fraction of a percent, is a level of consumption that starts being noticeable in terms of a new load on the electrical grid. With that justification for this fun calculation, how many Teslas does it take to consume 1.21 gW? Here are some interesting results: Scenario Power (W) Number Notes Average 1,000 1,210,000 12,000mi*360Wh/mi/365.25days/yr/24hr/day*2.029167peakiness Single Charger 9,600 126,042 240V*40A Dual Chargers 19,200 63,021 240V*80A 120kW Supercharger 133,333 9,075 120,000kW/90% 135kW Supercharger 150,000 8,067 135,000kW/90%, really 16,133 stalls in use P85 320,000 3,781 maximum output power Average: It is a little contrived, :wink:, but if you assume 12,000 miles per year, 360 Wh/mi from the grid, and a "peakiness" factor of a little over 2, then each Tesla consumes an average power of 1,000 Watts or 1 kW. That means it takes 1.21 MegaTeslas at 1 kW each to consume 1.21 gW. It will take Tesla a few years to get to that count. Single and Dual Chargers: This is simply the number of Teslas that need to charge at the same time to reach 1.21 gW. Maybe, we can organize a great synchronous charge event to see what we do to our local grids. There may be some neighborhoods in California that don't want to tempt the fates with this test... 120kW and 135kW Superchargers: This is the count of Supercharger Cabinets that need to operate at max power together to draw 1.21 gW. Note that I assumed a 90% efficiency for a Supercharger and did the calculations for power drawn from the grid. Because the most a single Stall (car) can draw is 120 kW, we need twice as many stalls (cars) as Supercharger Cabinets to hit the max with 135kW Superchargers. If we assume an average of 3 Supercharger Cabinets per Supercharger site, then this is about 3,000 Supercharger sites; even with 6 per site, that is about 1,500 sites. We have a ways to go to hit this number, and once again would need to plan a synchronous charge. P85: This is not power from the grid, but combined power from a group of P85's. If 3,781 P85's all punched the accelerator at the same time, the sum of the power consumed from their batteries would be 1.21 gW! The result of these calculations is that we have a while before all the Teslas in the world can consume 1.21 gW, and even then, that is only a fraction of a percent of world or even U.S. electrical power consumption. Have fun driving your time machine!!!