A Projection Of BIPV Systems In
Taiwan: Costs Versus Benefits
Author(s)
K.-J. Hsu
Abstract
Because Photovoltaic system tends to save the energy expenditure across the life
span of the systems, this paper uses life cycle costing (LCC), saving-toinvestment
ratio (SIR), and discounted payback period (DPP) methods to
construct the renewable energy evaluation framework in Taiwan. The benefits of
PVs mainly derive from energy cost savings, enhanced power quality and
reliability, reduced environmental emissions, rebates, and other incentives.
Based on the field data of PV-projects located at Taiwan, the paper identifies the
technical and economic parameters of the systems evaluation model. The
empirical case showed that the saving-to-investment ratio of the BIPV systems
with/without government subsidy is not currently feasible in Taiwan. After
examining critical factors of the PVs-project, the sensitivity analysis of the future
PVs-project was shown. Based on the empirical residential case with a
reasonable PR value, the results of sensibility analysis showed that BIPV will
become one of the dominant renewable energies in the near future if good,
integrated building design is available.
Keywords: building-integrated photovoltaic (BIPV), building economics, life
cycle costing, saving-to-investment ratio, risk analysis.
1 Introduction
Photovoltaic systems (PVs) offer clean, virtually silent and low maintenance
power on site. Its potential application depends on the local social-economic
development and environmental conditions. It was recently suggested [1–3] that
building Integrated Photovoltaic (BIPV) systems consisting of integrated
photovoltaic modules into the building envelope could be a cost-effective means
of abating CO2 emissions. There has been a dramatic down turn in costs [1, 4, 5],
Keywords
building-integrated photovoltaic (BIPV), building economics, lifecycle costing, saving-to-investment ratio, risk analysis.
Related Book
Other papers in this volume
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