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The Electromechanics unit of Mota‐Engil Engenharia e Construção installed a production unit for self‐consumption in the expansion work of Hospital da Luz (PUSC), in Benfica, comprising
518 photovoltaic modules of 300 Wp, totalling 155.4 kWp, and 6 inverters with a total capacity of 130 kWn.
The installation is divided into two identical parts of 65 kWn, each with 259 modules, two 25 kWn inverters and one 15 kWn inverter.
The PUSC’s monitoring can be done through the SMA platform (Sunny Portal) or through the SMA Cluster Controller which will send the system’s information to the hospital’s GTC via the Modbus communication protocol.
SOLAR FIELD
The photovoltaic modules are made
in Germany, glass/glass type, top of
the range with monocrystalline PERC cells. This new generation of glass/glass modules guarantees high fire resistance, allows the modules to withstand higher loads and offers better protection against fluctuations in temperature, humidity
and other environmental conditions. This field also includes support structures for the modules in anodized aluminium, 1,500 V connectors with IP68 protection, fixing elements of the structures to the stainless steel rail and solar cable CC from the German brand Lapp, resistant to UV rays and weather.
POWER PLANTS – CORES 1 AND 2
Two 25 kWn and 15 kWn inverters are installed in each core, both with a built‐ in DC circuit breaker, thus enabling the DC side to be cut off. Each inverter has
a DC electrical panel with individual protection by fuses, where the strings coming from the modules are connected, and there is also an individual protection for each inverter – residual‐current device and circuit breaker.
A meter is installed in the electrical panel to ensure the PUSC’s load shedding when the network fails. Each core injects into the respective HVAC electrical panel and has a meter‐register, with a GSM card, which will enable EDP to remotely meter the produced energy. Core 1 also has the cluster controller installed, which will control the inverters and monitor the PUSC.
PORTUGAL
ELECTROMECHANICS INSTALLS SOLAR FIELD
IN HOSPITAL DA LUZ
THE ENERGY PRODUCTION UNIT AIMS SELF‐CONSUMPTION AT THE HOSPITAL.
SINERGIA 55 JULY 2019 29