While researching the calling, Vance is digging through a Super-fund site that has a solar panel on the roof. Estimating its size to be about 30x20feet, Vance makes a statement that the Solar Panel is generating "more power than the Vegas strip". The Vegas strip consumes nearly 7000 Megawatts of Electricity. That solar panel can generate about 20 kilowatts. less than 1% of the Vegas Strip.
The power supply prop for the EMP device Saanvi uses at around 37:23 is a relabeled Noco Boost car battery jump starter. However, the output is clearly not connected to anything.