Assessing a regional building applied PV potential – Spatial and dynamic analysis of supply and load matching. (June 2016)

• Record Type: Journal Article
• Authors: Molin, Andreas; Schneider, Simon; Rohdin, Patrik; Moshfegh, Bahram
• Is Part Of: Renewable energy. Volume 91(2016)
• Page Start: 261
• Page End: 274
• Publication Date: 2016-06
• Subjects: PV system -- Dynamic load matching -- Load profile -- Self-consumption -- Spatial-time distribution -- Regional PV potential; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.renene.2016.01.084
• Languages: English
• ISSNs: 0960-1481

Abstract

Abstract: Electricity production by PV is growing world-wide, and grid parity of PV-electricity can be found in many countries, even in low sunlight countries, such as Sweden (at latitude 58°). High installation-rate of PV-systems poses a challenge to the grid-operator. Building-integrated PV-supply potential analysis was performed for Linköping municipality in Sweden based on GIS-data for all the buildings in the municipality. The Linköping model provides a high spatial resolution (>180 000 buildings). The data are sorted based on azimuth and tilt, categorized in steps of 10°, and then used to construct hourly power supply data. The supply data are fed into the existing electricity load-profile of Linköping municipality. The strength and novelty of the method is that it provides the possibility of varying the installation-rate in different spatial directions to better match the load-profile. The results indicate a solar supply-rate of 19, 43 and 88% respectively if using the tilted roofs (>900 kWh/m 2 × yr), the flat-roofs optimized with tilted panels for a winter solar supply and the fully available PV-area on existing buildings (8.1 km 2 ). Nevertheless, in approximately 70, 1400 and >3000 h/yr, respectively, surplus-power is created, which could be used to match a future load in a wider electro-mobility scenario. Graphical abstract: Highlights: Linköping Regional PV roof potential is 19, 43 or 88% of present electricity demand. Spatial-time distribution feasibility study of dynamic load matching of PV supply. Altering Tilt and azimuth of PV panels can spread PV supply over the hours day season.