ᐅ Is it beneficial to prepare for photovoltaic systems during new construction?

Be sure to install conduit pipes in advance and, at the same time, consider what else you might want to run over the roof. For example, for later heating elements that radiate from the roof overhang onto the terrace...

Pre-install conduit for electricity and network to the parking space as well.

You need two cables per string. Usually, solar cables with a cross-section of 4mm² (0.006 in²), depending on the cable length, are sufficient. One string typically consists of around 18 modules, depending on their power output. Roughly calculate the roof area, but I hardly know of any roof where a 40 or 50 mm² (0.06 or 0.08 in²) Kabuflex cable would not be suitable. 😉

Depending on the roof orientation, consider whether both sides of a gable roof are suitable and install two empty conduits accordingly.

Thank you

I have a gable roof with one side facing southwest (very good) and the other side northeast (not so good). Would it be worth covering the northeast side as well?

That depends on the exact orientation and roof pitch.

Pwnage619 schrieb:

thanks

I have a gable roof with one half facing southwest (very good) and the other half northeast (not so good). Would it be worth covering the northeast roof as well?

Estimated (not calculated), for roof pitches up to 30° (degrees), it is worth up to about $1,500 per kWp if there is a high base load in electricity consumption (e.g., due to a heat pump).
PVSol can calculate this; the trial version runs long enough to get familiar with it...