Kiel Nano, Surface and Interface Science (KiNSIS)

Prof. Tamas Kerekes (Aalborg): Design of residential Photovoltaic systems – a guideline

13.02.2017 von 17:15 bis 18:45

Technische Fakultät, Kaiserstr. 2, Raum: "Aquarium", Geb. D


Photovoltaic technology continues to increase its share in the global energy market, with an exceptionally fast growth in the last few decades reaching a cumulative capacity of 227 GW by the end of 2015, with a predicted extra 50GW of new installations for 2016. According to a report from SolarPower Europe (former European Photovoltaic Industry Association (EPIA)), the price of PV systems has decreased more than 75% in the last 10 years, making PV cost competitive with fossil-based generation in several countries. Fueled by this strong cost reduction, the PV industry is transitioning from being driven by subsidies into a viable option for investment for both large power plants and residential installations on a pure cost competition basis. Residential PV systems are a key element in the success story of PV rooftop installations and large utility scale plants share about 50% of new installations today. ENTSO_E forecasts that by 2025 European power generation will have over 50% renewable, where solar will be expected to have a major role. If we combine the solar increase with even more wind penetration, then this will require a much more flexible system in order to make the best use of renewable energy sources when they are available. Among the different flexibility options, storage is one solution that allows to respond quickly to balancing needs by absorbing the excess solar generation at peak times and releasing it during periods of lower production, but high load demand. By making the best use of cheap renewable electricity when it is available, storage can make the energy system more cost-effective. By adapting to demand and limiting the possibility of peak pricing, storage will also have a balancing effect on prices throughout the day. If solar is combined with storage then this will act as a bridging technology between the electricity, heating and cooling as well as transport sectors. Besides the rapidly developing battery storage capacity, the electrification of the transport sector and the use of electricity for heat purposes allow for an integrated approach of the energy system. This will provide new opportunities for European consumers and businesses, whilst potentially offering a variety of services to grid operators.

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