Off-Grid Power Supply for House Boat in Berlin

The grid-independent power supply for the houseboat consists of an Xtender Power AC10048 with 10kVA output power, a 4kWp PV generator, a 520Ah / 48V OPzV battery bank as well as a 6,5kVA GEKO 7801 E-AA / ZEDA backup generator. The system was delivered as a ready-to-install system including flat roof / floor frame mounting system.

Off-Grid Power Supply of an Outhouse near Saarschleife

Often facilities in protected nature areas can only be connected to the public grid by considerable financial and administrative burdens. In many cases an off-grid supply is the only viable solution to ensure a reliable power supply.
For the project a Xtender Power Pro Set in the smallest version with a Studer XTS inverter and a Studer VarioTrack charge controller was delivered. For the power supply throughout the year, an existing power generation from 6 PV modules provide 1.53kWp on a flat roof frame, which is supported by an auto-start gasoline generator when needed. As energy storage Hoppecke OpzV 6V block batteries with a total capacity of 235Ah (C24) at 24V are used, which guarantees a system autonomy of 2 days.

Power Supply for the “Walderhütte” in Austria

The “Walderhütte” is a guesthouse which is situated at 1960 m altitude at Wöllander Nock. Until now electricity was provided by a three-phase diesel generator. During the renovation of the “Walderhütte” a new, sustainable approach to power the electrical load was developed. Due to the main use during the summer months, the elctricity demand can be covered almost entirely by a photovoltaic generator. The pv generator provides 4.6kWp and is planned to be extended to 9.2kWp. In the transition periods and in winter the generator will be continued to use as backup power source. The battery bank has a capacity of 480Ah (C24) at 48V. This corresponds to a total capacity of 23kWh. The core of the system is represented by the Xtender Power Pro plug’n’play cabinet, which was adjusted as needed. in addition to the second Studer VarioTrack the cabinet is prepared for connection of an additonal wind turbine. An automatic decoupling of consumers phases ensures a uniform load on the three phases of the generator in backup operation.

Off-grid Power Supply for Finca on Mallorca

Many plots in Mallorca are not connected to the local power grid. In most cases your own off-grid solar power is the cheaper alternative to expensive network development. Especially with the good year-round irradiation conditions. In order to bridge longer bad weather periods a small diesel or gasoline generator is sufficient as an emergency power source.

For this project a Xtender Power Pro cabinet system with two 1-phase coupled Studer XTH inverters was supplied to catch short high peak loads reliably and to ensure sufficient reserves for future expansion. The power of the solar generator is 2,8kWp and can be expanded to twice the performance. The substructure was given in order by the customer on site. The batteries have a total capacity of 762Ah (C24) at 48V and are designed for a system autonomy of 2 days. Therefore durable Hoppecke OpzV tubular plate batteries are applied. Due to the prefabricated cabinet the customer was able to do the installation on his own.

Power Supply for Holiday Home in the Vosges

The system is based on a Xtender Power Set Classic with additional 12V DC power supply for the control of the solar thermal plant. As 48V battery storage a sealed armor plate battery bank (OpzV) was installed with a long service life.

A generator for low-light months is also provided. A signal lamp in the living room shows when the generator must be started.

The planning and installation of the system is done by SEI AG.

Plug’n’Play Off-Grid Cabinet Solution in Guinea

The Xtender Power Pro cabinet solutions are professional plug’n’play stand-alone power supply systems developed and offered by SEI AG. Due to the prefabricated cabinet a fast and error-free commissioning is guaranteed. A digital display provides information on all important operating conditions, such as battery state, PV power, energy consumption and error messages. A data logger is also integrated and allows a detailed evaluation of the plant operation.

The installation of the system in Conakry was performed by partner “Energiegenossenschaft Schweiz”. A total of 2.8 kWp PV capacity were installed and a battery capacity of 600Ah at 48V. The battery bank consists of 24 2V OpzV single cells with high cycle resistancy.

Outdoor Power DC for DSL Repeaters

The OutdoorPower DC M system poweres DSL repeater stations at several locations in Germany. In addition to the 500Wp PV generator, electricity is generated during the low-light months via an AIR 40 small wind generator. The battery capacity is 200Ah at 24V. Smart Energysystems supplied all components for the power supply including the pole mount for the PV generator.

Power Supply for Holiday Home in Germany

Off-Grid PV power System for a remote home. The system consists of a Studer XTM4000-48 inverter/charger, MorninStar Tristar TS45 charge regulator, 800Wp PV generator and 200Ah/48V battery bank. Due to the plug’n’play performance the customer was able to install the system on his own.

Off-Grid Power for a Finca in Mallorca

The system based on our Xtender Power Set II provides a reliable power source to a finca in Mallorca. For the winter time there is a small generator ready as a backup power source. The generator house with 45 ° pitch roof has been built by the customer. The system was supplied by us directly to customer in the normal connection-ready version. The installation was therefore not a problem.