Groospeter Tower as an example of combining renewables, solar and geothermal, supplies a part of its energy demand from the sun and earth’s heat. Moreover, it utilizes its envelope such as facades and rooftops to integrate and balance energy consumption and production systems in line with its green goals.
Although many rooftop solar installations provide clean and green energy to their occupants by stand-alone mounted systems in small-scale, there exist many examples which have met this target in a larger scale than those of. Building-integrated Photovoltaics (BIPV) has recently been a promising paradigm to achieve net zero-emission goals in the city-level.
Buildings in the cities on average are respectively accounted for 36% and 40% of energy use and CO2 emissions. During the past decade, we have witnessed to shift in the building and construction paradigms. This means that buildings have been changed their roles from mere consumers of energy to partly and in the ideal case, net-zero energy/emission building(n-ZEB), to totally producer of energy.
As an example of partly met its energy demand from renewable energy, especially solar energy, Grosspeter Tower in Bazel, Switzerland, utilized this paradigm and supplied 28% of its energy demand from its facades and rooftop.
The 22-floor tower has a 440 kW photovoltaic system that uses all sides of the solar facade. The solar facade system plus to 100 kW solar PV system on the roof, have gathered the power of 540 kW and generated 252 MWh per year. The tower’s heat requirement is covered by solar-powered geothermal probes.
Photo:@AdrianoBiondo & @SolarArchitecture @Solar_Edition
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