Objective
To demonstrate and promote the use of grid connected PV generators integrated into the roofs of commercial buildings. This project involves the use of high efficiency PV cells in new large area modules. It also incorporates an array of PV modules built in the form of "Solar sails" as a promotional feature for the solar architecture.
The construction of the Science Park Gelsenkirchen represents an important phase of the economic recovery programme for the Northrhine-Westfalen area of the Ruhr. It has been established that the complex should reflect an overall aim of the development programme which is to include architectural and planning exemplars incorporating novel design and construction features.
Consequently it is considered an ideal opportunity to utilise grid-connected PV systems partly integrated into the building construction design. Full use will also be made of passive solar gain which will be controlled by means of a "dynamic glass wall" and space heating with waste heat from local utility plants. This project involves the installation of approximately 210 kWp within the first Phase of the programme.
The key feature of the integration is the fabrication of large area "Optisol" modules by resin-encapsulation of 123 mm square cells between two layers of glass.
Nr. of subsystems : 20 (9 onpavillions, 11 on arcade).
Power of subsystems : Arcade 21 x 2.8 kWp (LGBG), 59 kWp Pavillions 18 x 8.4 kWp (LGBG), 151 kWp
Total power : 210 kWp
Backup : Grid
Nr. of modules : about 900
Module description : newly developed "Optisol" type M059096, with 96 cells in series, 56 V ocV, 48 V operating voltage, 233 Wp each, 44 kg, 810 x 2010 mm.
Connection : All subarrays have 6 modules in series for 290 V nominal line voltage, with together 1400 Wp. Two parallel series for the arcades (2.8 kWp) and six parallel series for the pavillions (8.4 kWp).
Support : Optisol modules mounted on racks, 28 deg. inclined, on the flat roofs of pavillions and arcades.
Max. Power Tacker : Automatic
Charge Control : Not applicable
Battery : None
Inverter : One big inverter (160 kW, 12 pulse), together with four small (5 kW) master-slave inverters (pulse-width).
Inverter in (V) : 290
Load description : AC building load
Monitoring : Meteorological data and power measurements of all 20 subarrays. Large display and touch-screen display (interactive) in the entrance hall.
Programme(s)
Topic(s)
Call for proposal
Data not availableFunding Scheme
DEM - Demonstration contractsCoordinator
45897 GELSENKIRCHEN
Germany