
Planning, installation and service of photovoltaic systems, battery storage and energy management systems from Hatten near Oldenburg
CS Energiesysteme GmbH
Hatten/SandkrugNew on Amplifa
About CS Energiesysteme
CS Energiesysteme GmbH is a family business from Hatten/Sandkrug near Oldenburg, now run by the second generation, specializing in the planning and implementation of modern energy concepts. As a master craft business, the company plans and installs photovoltaic systems on pitched roofs, flat roofs and open spaces – from single-family homes and multi-family homes to commercial halls, agricultural and logistics operations. The service portfolio includes battery storage including emergency power solutions, intelligent control and energy management systems, wallboxes for PV surplus charging, surge protection as well as service and maintenance with performance analyses. Every project is accompanied from the profitability calculation through subsidy and grid registration to commissioning and long-term support – all from a single source. According to its own figures, the company, active since 2010, has installed more than 6,000 systems and is firmly established in the Oldenburg region and throughout northern Germany.
- Site
- Hatten/Sandkrug
- Processes
- Photovoltaic planning and installation (roof systems: pitched roof, flat roof, open space), Photovoltaics for businesses/commercial (production halls, office buildings, agriculture), Battery storage planning and installation (incl. emergency power solution), Control & energy management (intelligent control systems, PV surplus control), PV surplus charging / wallbox installation (charging electric cars with solar power), Service & maintenance (regular maintenance, performance analyses, monitoring, support), Surge protection installation for PV systems (SPD Type 1, 2, 3), Balcony solar system consulting and installation (up to 960 Wp / 800 W inverter power)
- Founded
- 2010
- Industries
- Private customers (owner-occupied homes, multi-family houses), Commercial / manufacturing, Office buildings, Retail & services, Agriculture, Logistics
- 01
Consulting and profitability calculation
- 02
Individual system planning
- 03
Subsidy consulting and grid registration (MaStR, grid operator)
- 04
Installation and commissioning
- 05
Monitoring, maintenance and service
Locations
Hatten/Sandkrug
DEHeadquarters and operations
- Materials
- PV modules, battery storage, inverters, energy management systems
- Huawei EMMA Energy Management Assistant
- Fenecon AVU all-in-one energy system with emergency power capability
Reference Projects



Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Photovoltaic planning and installation (roof systems: pitched roof, flat roof, open space)Assembly | – | – | – | – | – |
| Photovoltaics for businesses/commercial (production halls, office buildings, agriculture)Engineering | – | – | – | – | – |
| Battery storage planning and installation (incl. emergency power solution)Assembly | – | – | – | – | – |
| Control & energy management (intelligent control systems, PV surplus control)Engineering | – | – | – | – | – |
| PV surplus charging / wallbox installation (charging electric cars with solar power)Assembly | – | – | – | – | – |
| Service & maintenance (regular maintenance, performance analyses, monitoring, support)Testing | – | – | – | – | – |
| Surge protection installation for PV systems (SPD Type 1, 2, 3)Assembly | – | – | – | – | – |
| Balcony solar system consulting and installation (up to 960 Wp / 800 W inverter power)Assembly | – | – | – | – | – |
| Consulting, profitability calculation, subsidy consulting and grid registration (MaStR, gridEngineering | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Energy Management Assistant | Huawei EMMA | – | – | – | – |
| All-in-one energy system (AVU, emergency power capability) | Fenecon AVU | – | – | – | – |
Additional services
History
- 2010
Founding of the family business; active in the market for photovoltaics and energy concepts ever since
The business is run by the second generation by Managing Director Philipp Hanken
- 2025
Commissioning of reference systems in Oldenburg and Hatten, among others with Huawei EMMA energy management
- 2026
Commissioning of the 20.9-kWp commercial system in Wardenburg with Fenecon AVU emergency power solution