B
bigsparks
Hi
I am drawing up a quote for a PV system. The property is a double bay semi detached property with a small dormer rafter pitch at the front, which is the south facing aspect of the roof. Due to the dormer pitch, we can only fit 5 x 195w panels, in a staggered formation, onto this south facing aspect. I would like to use 250w panels but the width dimension of the panel would be too big and would protrude over the ridge tiles, a big no no. So we have to have 5 x 195w panels to the front (south facing). There is a larger roof space to the side of the property that is south west facing that we can fit 8 x 250w panels onto.
When calculating kwp, I will add both strings together, and use one sma inverter to generate.
Can you advise best way to calculate SAP performance. Will it be just a case of calculating produced kwh of south & south west strings separately and then adding together. Or as im using one SMA inverter with 2 strings connected will I have to take anything else into consideration as the roof aspects face different positions??
Any help appreciated.
Cheers
I am drawing up a quote for a PV system. The property is a double bay semi detached property with a small dormer rafter pitch at the front, which is the south facing aspect of the roof. Due to the dormer pitch, we can only fit 5 x 195w panels, in a staggered formation, onto this south facing aspect. I would like to use 250w panels but the width dimension of the panel would be too big and would protrude over the ridge tiles, a big no no. So we have to have 5 x 195w panels to the front (south facing). There is a larger roof space to the side of the property that is south west facing that we can fit 8 x 250w panels onto.
When calculating kwp, I will add both strings together, and use one sma inverter to generate.
Can you advise best way to calculate SAP performance. Will it be just a case of calculating produced kwh of south & south west strings separately and then adding together. Or as im using one SMA inverter with 2 strings connected will I have to take anything else into consideration as the roof aspects face different positions??
Any help appreciated.
Cheers