A house with a facade of solar cells | KORTROS Group of Companies

The project "House with a facade of solar cells"

Location: Olimpika Quarter, Akademicheskiy District, Yekaterinburg

House 12.8, located in the Olympic quarter, next to The Preobrazhensky Park is distinguished not only by its characteristic stylistic solution using panoramic glazing, but also by the use of energy-efficient technologies. Solar panels are integrated into the facade of the house, which are part of the facade structure of the house. They "collect" the electromagnetic radiation from the sun and convert it into an electric current. The energy is then transferred to the network of an apartment building to illuminate common areas. During the design, the solar radiation of the building's facade was calculated, taking into account the shadows falling from neighboring buildings and the time of day. The best option for placing panels from the Russian company Hevel with vertical stripes between the windows was chosen. In addition to the traditional black color, the solar panels are presented in a beige shade, thus harmoniously continuing the architectural line of the facade.

The project provides for the installation of facade photovoltaic systems (FFS) on the parapet of section 12.8.1 in axes A-E, 18-44. FFS consist of facade panels, inverter power conversion units, as well as fully supplied power limiting devices. The electrical power generated by the panels on the facade in the A-E axes is 11.4 kW, and a GW8K-DT inverter is used to connect to the power supply system. The electrical power generated by the panels on the facade in axes 18-44 is 46.4 kW. The power supply system is connected via a GW10KT-DT inverter for axes 18-28 and a GW30K-MT inverter for axes 30-44. The control of power overflows is carried out at the input of VRU-1.4 using SEC1000 controllers. The controllers monitor and analyze the consumed and generated electricity at each moment of time, followed by data transmission via the RS485 protocol to the inverters. Controllers can implement the following algorithms for regulating the generation of electricity by inverters:

− mode without power supply to the grid — in this mode, if the electricity generated by the FSF is sufficient to compensate for the entire load, then power from the grid is excluded, all electricity is generated only by the FSF. If the FSF can generate more electricity than it consumes (on a clear sunny day), the SEC1000 controllers will limit the inverters in such a way as to prevent power from flowing into the grid, and the electricity produced is equal to the consumed one.;

− mode with a fixed minimum value of the power consumed from the network — in this mode, even if the FSF is able to compensate for the entire load, the controller will limit the inverters in such a way that at least 1 kW will be consumed from the network. The rest of the load will be compensated by the FFMS.

− power generation mode to the external network. The operation algorithms of the inverters at this facility exclude the generation of electricity by the FSF in the generation mode to an external network of 0.4 kV.

The annual power generation of the FSF will amount to 48 MWh, which will meet the need for lighting in common areas, elevator operation and other needs of the house. The efficiency of the solar cell is up to 23.8%, the developer guarantees high performance of the solar panels — the efficiency of the module will be at least 81.6% after 30 years of operation, with a warranty period of 50 years.

The uniqueness of the innovative cladding material lies in the fact that today it is the only one in the In the Russian Federation, a solution for facades with the function of generating electricity.

The use of photovoltaic facade systems with photovoltaic modules as a cladding material can significantly reduce operating costs and ensure independence from rising electricity tariffs; gain additional benefits through a 3-year property tax discount (for facilities using energy from renewable sources); ensure uninterrupted power supply (when using energy storage devices) and organize backup power supply system for the most important facilities and processes for which the stability of energy supply is critical; makes it possible to reduce the carbon footprint and reduce greenhouse gas emissions