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Author Topic: my off grid/grid tied plan - your thoughts most welcome  (Read 3253 times)
nowty
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« Reply #15 on: August 09, 2015, 07:28:08 PM »

What sort of devices/arrangement  do you use for switching the low power consumer unit on-grid/off-grid, and for switching low power circuits between CUs?



My manual seasonal switching is simply done by pluging individual circuits into either off grid, on grid or another one (not in the pic) which is a switched one.





Timers and relay outputs from my Sunny Island (based upon battery state of charge) decide whether the off grid consumer unit powers from either grid or off grid.





The big mother power relay which does the actual switching of the consumer unit between grid or off grid.



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11kW+ of PV installed and 56+ MWh generated.
Lithium battery storage of 50+ kWh.
Hot water storage of 15+ kWh.
Heat storage of 15+ kWh.
6kW Ground source heatpump.
EV BMW i3 (another 30+ kWh's of storage).
260,000+ litres of water harvested from underground river.
Home grown Fruit and Veg.
biff
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An unpaid Navitron volunteer who lives off-grid.


« Reply #16 on: August 09, 2015, 07:52:51 PM »

Nice Nowty,
            Excellent idea to label all the leads. I can see you put a lot of thought into this installation.
       I avoided all those leads Grin. I have just one house plug and 3 choices of sockets to plug it into.
   The symmetra rm socket, The Chinese inverter socket and the geni socket..
       Yours in a neat job, genuflect
                                    Biff
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An unpaid Navitron volunteer,who has been living off-grid,powered by wind and solar,each year better than the last one.
skyewright
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« Reply #17 on: August 09, 2015, 09:50:31 PM »

       Yours is a neat job, genuflect
Indeed. Thanks nowty. A simply engineered solution.   Smiley
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Regards
David
3.91kWp PV  (17 x Moser Baer 230 and Aurora PVI-3.6-OUTD-S-UK), slope 40, WSW, Lat 57 9' (Isle of Skye)
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