Get inspired: ZeroWatt Group AB
We take pride in working with our customers. We deliver sustainable products used for interesting and beautiful installations every day. For example, ZeroWatt Group AB recently completed two cool projects on behalf of the Mellerud Municipality in Sweden. The weather conditions made this assignment particularly challenging. We would like to tell you more about the installations, the challenges, the products used and why ZeroWatt Group AB chose these very products.
The project:
The project was an assignment of Mellerud municipality (Sweden) and consisted of 2 parts:
1. A roof installation on 16 degree bitumen roof of a school building. The installation in brief:
349x 430W Jinko Solar panels.
14 strings distributed on 2 Growatt MAX 80kW inverters
Fire protection switches
External SPD and DC switches/fuses
Connected to a 750A 400V connection point from a separate power plant next to the school, which also houses the backup diesel generator
2. A rooftop installation on a flat roof where the solar panels are tilted 10 degrees to the south. The building is a protected property owned by the Mellerud Municipality.
The installation in brief:
105x 430W Jinko Solar panels.
6 strings connected to a Growatt MAX 50kW inverter with fire protection switches
External SPD and DC fuses/switches
Connected to a 250A 400V connection point in the building equipped with a diesel generator
Challenges:
"The weather conditions created considerable challenges during this project. Namely, the constant rain made it impossible for the installers to weld the sealing plates on the roofs. As a result, the tight schedule had to be adjusted several times. Thanks to good project management from my colleagues and a cooperative customer, everything eventually turned out well and we realized a great project!"- Leif Larsson, CEO ZeroWatt Group AB
Products used:
468 Jinko 430W- panels
K2 Systems mounting
1x Growatt MAX-50KTL3 LV
2 x Growatt MAX 80KTL3 LV (met AFCI)
4 x Athilex 6.0mm Black DCA 500 mtr
4 x Athilex 6.0mm Red DCA 500 mtr
Why these products?
"We find Jinko's products reliable and of good quality. From Growatt, we like the good selection of inverters and good value for money. As for mounting, we have found that K2 has mounting brackets that are suitable for a wide variety of roofs. For another project in Sweden, we are using K2 together with CW Lundberg, even for sedum roofs (green roofs)." - Leif Larsson, CEO ZeroWatt Group AB
Why ESTG?
"We like ESTG's product range and short delivery time combined with competitive prices, but last but not least and very good customer service. So we found the cooperation very good. ESTG has always been there for us when we had questions or needed to solve new challenges." - Leif Larsson, CEO ZeroWatt Group AB
We thank ZeroWatt Group AB for collaborating on this great case and their trust in us. Do you also have a great project that you would like to share with us and our customers? Please let us know.