Creative Low Carbon Buildings through Integrated Configuration of Folding Roof-BIPV in an Office Buliding in Surabaya

Abstract

Low-carbon buildings (LCB) are buildings which are designed with the concept of GHG reduction. GHGs are released in the atmosphere during each stage of buildings life. The stages are building construction, building operation, and also building renovation and deconstruction. Associated with building operation, one of carbon emissions source are electricity consumption. This electricity are produced by fossil fuels. Two strategies adopted by LCB to reduce GHG emissions during operation are reduce energy consumption and switch to renewable energy sources. In relation with the 2nd strategy, on 2025 Government National Energy Mix Program target to substitute the use of fossil fuel by renewable energy sources as much as 7%. BIPV (Building Integrated Photovoltaics) refers to the application of PV (photovoltaic) in which the system as well as having the function of producing electricity from renewable energy source, also takes the role of building form and element. Electricity output generized by BIPV depends on the amount of solar radiation received by PV panel. There are some factors affect the amount of radiation received. One of them is the tilt angle and the orientation angle of PV panel. This research will compare optimal configurations of Folding Roof-BIPV to flat roof-BIPV (as base case model). Experiment with simulation as it tools is used as a method to get the optimal configuration of Folding Roof-BIPV. Related to 2nd strategy towards LCB, this research will calculate how much electricity energy produced by renewable energy resource (created by integrated configuration of folding roof-BIPV) could substitute electricity energy produced from fossil fuel.