hi sebastian you are right except for the efficiency of solar panels. A 1000 watt array would produce 1000 watts of electricity. The 15 percent efficiency number refers to how much of the solar energy hitting the panel is converted to electricityso your true energy harvested would be 57.6 Watt hours of the original 1000 Watt hours using your other efficiency numbers...
Sebastian Köln wrote:Every conversion means losses. They can be anywhere between 90% to 10%.
Here are my guesstimated efficiencies for your proposed setup:
Solar -> electricity: 15% (solar panels)
electrical -> mechanical 80% (motor)
mechanical -> pneumatic 30% (compressor)
pneumatic -> mechanical: 30% (turbine)
mechanical -> electrical: 80% (generator)
That makes a total of 0.15 * 0.8 * 0.3 * 0.3 * 0.8 = 0.00864 (0.8% efficiency). So for every 1000W of solar input, you get 8W out.
This is compared to just hooking up the solar panels to the battery (15% efficiency -> 150W output for 1000W solar input).
Cat Hargreaves wrote:We are looking to build in Island County. They have very strict regulations and building off grid is basically not allowed for an actual house. Septic is required and as far as I know, a self-install is not permitted. Septic is so expensive! Would it be cheaper to develop an alternative greywater/blackwater system? And possible to technically pass inspection?
Hmm well I have used the Ted monitors: look at this link here: http://www.theenergydetective.com/prohomestore.html
K Eilander wrote:Okay, so we've all heard of (and probably own) a kill-a-watt for monitoring power-hungry loads.
But how to detect drains that:
a) Aren't connected to a 110 power outlet
b) Change over time -- is your fridge going out?
c) connected to that one outlet that you never thought about (did you remember to turn that one light bulb in the attic off? ... are you sure?)
What I envision is a little circuit that can sit next to my breaker box and attach to all outgoing hot lines to tell me if, say, breaker #3 is pulling a load even at night.
Should be possible. I'm vaguely picturing something like arduno+some kind of sensor+analog mux
(+being careful not to electrocute myself)