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Author Topic: 2nd solar setup for battery charging  (Read 1460 times)
daphney
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« on: December 07, 2020, 06:47:24 PM »

i have 3.6 grid tied pv system already  & now i have finished building my workshop im wondering can i add a 2nd system just to charge battery in day for use after sunset & still remain grid tied?
im in south of uk roof of workshop is south facing  but not sure how rules etc about this are
i want to stay on grid for winter purposes but summer this could work
thanks for any help or opinions
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Fintray
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« Reply #1 on: December 08, 2020, 10:54:44 AM »

You could add another system and have it charging a battery via DC and still remain grid tied. Although you might want to consider charging the battery via an inverter/charger and this way would allow any excess power from you existing system to also charge the battery.
Get a decent capacity battery and along with your PV systems you are likely to find your spring/summer/autumn import much lower.
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daphney
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« Reply #2 on: December 10, 2020, 02:21:33 PM »

so at the moment all the generated electric is used by house   
i have an eddi box  so summer heats water & aircon ( end march - end sept )
winter is storage heater choice of 2 3kw units via a change over switch   ( ps was amused by storage heater thread   old junk  new life  but does the trick )
so all that was generated on workshop roof would be for after sunset
so say i put 2  -  2.5 kw of panels on roof of workshop what batts & charger is recommended 
 i no i wont get all i need in winter  but every bit helps
thanks
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pantsmachine
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« Reply #3 on: December 10, 2020, 02:27:54 PM »

You might find my inane blatherings from earlier in the year to be of some use?
https://www.navitron.org.uk/forum/index.php/topic,31836.0.html
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