| 1 | | Laubstiege 19 | Gronau (Westfalen) |  DE | | Public Works Department | +49 25627170 | | P Ruczinski |
| 2 | | Nechtelsen 11 | Sulingen | DE | | Water Works, Water Utility Company | +49 427793000 | | Carsten Minnecker |
| 3 | | Lindenallee 2 | Günzburg | DE | | N/A | +49 82215424 | | Martin Daum |
| 4 | | Hermann-Löns-Straße 131 | Bergisch Gladbach | DE | | Electric Utility Company, Gas Company, Water Utility Company | +49 22022855800 | | Manfred Habrunner |
| 5 | | Duisburger Str. 161 | Duisburg | DE | | Water Utility Company | +49 2035400 | | Raymond Hernandez |
| 6 | | Burgstraße 1 - 5 | Leipzig | DE | | Electric Utility Company | +49 3413315710 | | Thomas Hutzel |
| 7 | | Gasstraße 18 | Itzehoe | DE | | Public Works Department, Corporate Office | +49 48217740 | | Daniela Fritzsche |
| 8 | | Peiner Str. 85 | Hildesheim | DE | | Cafe | +49 51219990803 | | Edith Erhard |
| 9 | | Schulhausstraße 40 | Bad Säckingen | DE | | Energy Supplier | +49 776155020 | | Cebandt Ralf |
| 10 | | Rittergasse 18-20 | Essen | DE | | Mediation Service | +49 201491044 | | Edith Erhard |
| 11 | | Luisenring 49 | Mannheim | DE | | Electric Utility Company, Gas Company, Heating Contractor, Heating Equipment Supplier, Solar Energy Contractor, Solar Energy Equipment Supplier, Solar Photovoltaic Power Plant | +49 6212900 | | Thomas Lerner |
| 12 | | Weinsdorfer Str. 39 | Mittweida | DE | | Electrical Engineer | +49 37279720 | | Jens Winkler |
| 13 | | Friedrichstraße 24 | Dresden | DE | | Electric Utility Company, Gas Company | +49 3514042500 | | Wolfgang Dünkler |
| 14 | | Max-Fischer-Straße 11 | Bobingen | DE | | N/A | +49 82341065 | | Martin Daum |
| 15 | | Zirndorfer Str. 18 | Oberasbach | DE | | Restaurant | +49 911604237 | | Edith Erhard |
| 16 | | Wolfenbütteler Str. 59 | Lengede | DE | | Gas Station, Car Wash, Kiosk, Oil Store | +49 5344261450 | | Torben Schaff |
| 17 | | Barkhausenstraße 4 | Bremerhaven | DE | | Club, Wind Turbine Builder | +49 471391770 | | Laura Plewinski |
| 18 | | Bachstraße 3 | Siegburg | DE | | Energy Supplier, Gas Company | +49 22411070 | | Wolfgang Reuter |
| 19 | | Am Wasserwerk 1 | Strausberg | DE | | Water Utility Company | +49 33413430 | | Stefan Seidel |
| 20 | | Prinz-Fritzi-Allee 2 | Donaueschingen | DE | | Electric Utility Company | +49 7623921200 | | Annette Bikun |
