Hi all, New here and located via Will's YT channel. Awesome content Will.
I am seeking help on designing a grid tie battery system...all help welcome!
I have already designed and been approved (twice) by APS (AZ power) for a grid tie system but didn't execute. Watching Will's channel, I need to up the system with battery...this is where i need help.
Background
1) APS time of use plan with a 3 hour peak usage premium (4-7pm). I use a peak of 10kwh during this window even with pre cooling
2) Max daily usage is approximately 250kwh (summers with temp over 100). Min daily usage is about 90kwh (winter). A/C drives most consumption
3) Already approved for 36 400W ground based panels with 15kw inverter
Goal - Solar with ROI!
1) Reduce overall consumption by about 50%
2) Eliminate the time of use consumption charge (as much as $250/month)
Constraints
1) Ground based system that can accommodate approximately 32 400W panels...approx 14kw system max. Possible later expansion though APS do not like residential over 15kw.
2) Partial shading on some panels during the day so a preference for micro inverters
3) 400W main panel
Questions
1) What size battery do I need?
2) What kit do I need to manage battery usage during peak hours (i.e. how do I prioritize battery supply over utility during peak hours).
3) What else do I need to think about
Many thanks to all
I am seeking help on designing a grid tie battery system...all help welcome!
I have already designed and been approved (twice) by APS (AZ power) for a grid tie system but didn't execute. Watching Will's channel, I need to up the system with battery...this is where i need help.
Background
1) APS time of use plan with a 3 hour peak usage premium (4-7pm). I use a peak of 10kwh during this window even with pre cooling
2) Max daily usage is approximately 250kwh (summers with temp over 100). Min daily usage is about 90kwh (winter). A/C drives most consumption
3) Already approved for 36 400W ground based panels with 15kw inverter
Goal - Solar with ROI!
1) Reduce overall consumption by about 50%
2) Eliminate the time of use consumption charge (as much as $250/month)
Constraints
1) Ground based system that can accommodate approximately 32 400W panels...approx 14kw system max. Possible later expansion though APS do not like residential over 15kw.
2) Partial shading on some panels during the day so a preference for micro inverters
3) 400W main panel
Questions
1) What size battery do I need?
2) What kit do I need to manage battery usage during peak hours (i.e. how do I prioritize battery supply over utility during peak hours).
3) What else do I need to think about
Many thanks to all