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Sendom and Stilo Energy choose APsystems Microinverters for a 350 Zero Energy housing program

Not only zero energy, but almost free energy as well. This is a new smart home in Sendom’s offer. Photovoltaic installations will be provided by Stilo Energy, with which Sendom has concluded a contract for the construction of 350 photovoltaic houses with a total capacity of 3 MW. The cost of the house is PLN 299,000 (below 67,000€)

The Sendom company from Stary Kiszewa in the Pomeranian Voivodeship is one of the largest producers of prefabricated houses in Poland. Until now, the buildings proposed by it were equipped with a heat pump and mechanical and ventilation systems in order to reduce operating costs to a minimum.

From now on, houses offered by Sendom will be equipped with photovoltaic panels, which will be supplied and installed by Stilo Energy.

As Stilo Energy assures, Sendom customers themselves were an inspiration for houses equipped with solar energy as standard.

The buildings we offer are energy-efficient. The cost of electric home heating does not exceed PLN 1,000 per year (Eq. to 223€ per year). So why not generate electricity yourself, our customers ask us. That is why we decided to introduce a zero-energy house to our offer, which will be self-sufficient not only in terms of heating, but also allow our clients to use free electricity – comments Barłomiej Kantrzonka from Sendom.

In photovoltaic installations, Stilo Energy  has chosen QS1 microinverters from APsystems.

Photovoltaics in a mortgage loan

Over the next year, Sendom plans to sell 350 buildings from the series known as Smart, which, apart from a photovoltaic installation with a capacity of 6.4 kWp, also includes the use of, among others air-water heat pump. The usable area of ​​the house will be 111.5 m2, and the floor area is 139 m2.

The company emphasizes that the purchase of a house with a photovoltaic installation is financially more advantageous than the purchase of a house and the subsequent installation of the system due to the possibility of covering the installation with mortgage financing.

A house with photovoltaics as standard can be financed with a mortgage, provided that the purchase of both will take place simultaneously. It is a very attractive form of investment financing due to better credit conditions. In this way, customers benefit in two ways: they save on electricity bills and loan costs – says Krzysztof Koronkiewicz from Stilo Energy.

 

Meander office building turns into a 428 kWp solar-powered social housing complex

When office space reinvents itself  into sustainable housing with solar, 250 social rental homes offer low energy bills to their tenants.

The Meander office building was opened in the late 1990s and served as a town hall in Nieuwegein (Netherlands) for a long time. In recent years, the complex has been completely renovated and transformed into a residential building with over 250 social rental homes. In order to meet the wishes of future tenants and the requirements of today, each home has its own heat pump and a connection to solar panels. The houses are also gas free (the majority of households in the Netherlands use gas for heating and cooking), so that each resident has an extremely low energy bill and energy consumption is not at the expense of the environment.

The installer NewSolar, responsible for the installation of more than 420 kilowatt peak, equipped each home with 6 solar panels from Trina Solar. For the technology and conversion behind the solar panels, micro-inverters from APsystems were deliberately chosen. By using micro-inverters, it was not necessary to install a separate inverter in each home, so that no unnecessary space was taken up in the homes. This also precludes improper use by the tenant / resident due to the lack of additional electrical equipment in the apartments.

The ability to give each resident access to his or her yield, at virtually no additional cost, was a decisive factor in choosing APsystems.

Only 2 micro-inverters are installed per home, the QS1 and the YC600, to which 4 and 2 solar panels can be connected respectively. By using these micro-inverters, no additional facilities (e.g. wiring) is required per home and a very short installation time is guaranteed. This is made possible thanks to standard integrated Zigbee communication features in all Microinverters and Energy Communication Units (ECU) from APsystems.

Thanks to APsystems’ unique Shared Monitoring, each resident has access to his own yield thanks to a login code via his mobile or tablet, for example. When using the ECU-R (Energy Communication Unit), managing and maintaining an overview and remote monitoring is possible, so services can be easily provided without even paying a visit to the tenants.