match potential emergency energy sources w/ critical equipment Answered
Trying to match potential emergency energy sources (solar, inverters, auto/marine batteries, wind turbines) with particular devices necessary for emergency response planning (laptops, flashlights, refrigerators, handheld radio units, other RF gear, wireless/wired networks)
1. Trying to calculate how much energy and in what form we'd need to, for instance, reliably keep a laptop running during power failure.
2. With respect to devices that need DC power - such as walkie-talkies - which are usually recharged (at least in North America) from AC power, through a DC converter, and then charged:: is it possible with devices which generate DC power - such as solar PV generators - to charge them directly without converting to AC and back to DC?
We're looking not so much for particular matches between power source X and device Y - more methods for making the calculations.