Solar Irradiation before / after new adjacent building

[mattsilvester]

I am trying to figure out how to simulate the solar irradiation on a surface.

There is an existing solar thermal array on the roof of a low rise building. We are building a new high rise building adjacent which will cast significant shadow over it.

I simply need to be able to say "prior to the new construction, the array received xx W/sqm or solar irradiation but now it receives yy W/sqm".

I don't need to do a full system analysis of the actual solar thermal system, but if I need to do it via APACHE HVAC or similar, then I will do that. I Just need a pointer in the right direction.

Many thanks in advance,

Matt

[KasperS]

Hey

if you run Suncast, then after the calculation is done you can see the amount of solar radiation on the given plane. I am not sure if this is an average or what, but you should look in Suncast to be able to determine the amount of sun on the plane.

From Kasper