2025 - 24.45 kW modules on two 10 kW inverters over 6 roofs
From Nov-2025
Yet another complex solar installation over 6 roofs with Axitec and Solarfabrik TopCon modules, using SL-Rack only mounting system and two 10 kW inverters (Kaco: 10kW grid-tied, GoodWe: 10kW hybrid) with a 10.1 kWh Axitec (SV2) battery. The garage roof was freshly renovated before the installation. As the Axitec SV2 battery is actually the Pylontec H2, GoodWe inverters are compatible if upgraded to a current firmware. The system was planned as a hybrid system of half the size, and changed along the course of the project towards as it is now. As 2 inverters with 2 trackers each do not suffice for 6 module orientations, BRC optimizers (M600-M) compensated for the remaining module fields. Again, almosts all physical labor was executed by Bausteine Renovierungen. My job was consulting and wiring only. ..and, again, I forgot about taking pictures of the inverters and electronics.. anyway, thanks for the project!
overview, electrical layout
freshly renovated garage roof
garage roof hook, SL-Rack
garage roof renovation, Northern part
garage roof after renovation, with roof hooks in place
garage roof with modules, South
string wiring with red (plus) DC cables, metal ties (with protection) and plastic cable ties; frankly, I don't like the exposed part, but... next time
garage module, all in place, perfect module plane
DC plugs, Stäubli MC4-evo2
grounding rods and black rail covers (front and back)
