Environmental and economic analysis of building integrated photovoltaic systems in Italian regions

Cucchiella, Federica; D’Adamo, Idiano; Koh, S.C. Lenny

doi:10.1016/j.jclepro.2013.10.043

Cited by 95 publications

(51 citation statements)

References 30 publications

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“…NPV, DPBT, Internal Rate of Return (IRR), Benefit to Cost Ratio (B/C) and LCOE are the indicators typically used in the PV context [21]. NPV and DPBT are basically used to evaluate residential PV systems [18], IRR can cause conflicting answers (multiple IRR can occur) when compared to NPV in mutually exclusive investments [22], B/C permits to translate environmental impacts in economic terms [23] and LCOE is typically used to compare the cost of the energy obtained from different sources [24]. The grid parity is obtained when the solar PV LCOE is comparable with conventional technologies grid electricity prices [13].…”

Section: Introductionmentioning

confidence: 99%

Economic Analysis of a Photovoltaic System: A Resource for Residential Households

2017

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New installed annual solar photovoltaic (PV) capacity was equal to 76.1 GW in 2016 (+49%), reaching the total of 305 GW around the world. PV sources are able to achieve a greater energy independence, to tackle the climate change and to promote economic opportunities. This work proposes an economic analysis based on well-known indicators: Net Present Value (NPV), Discounted Payback Time (DPBT) and Levelized Cost of Electricity (LCOE). Several case studies are evaluated for residential households. They are based on three critical variables: plant size (1, 2, 3, 4, 5 and 6 kW), levels of insolation (1350, 1450 and 1550 kWh/(m 2 ×y)) and share of self-consumption (30%, 40% and 50%). The profitability is verified in all case studies examined in this work. The role of self-consumption, that is the harmonization between demanded and produced energy, is strategic in a mature market to improve financial performance. A sensitivity analysis, based on both electricity purchase and sales prices (critical variables), confirms these positive results. The Reduction in the Emissions of Carbon Dioxide (ER cd ) signifies an environmental improvement when a PV system is used as an alternative to a mix of fossil fuels. Finally, a policy proposal is examined based on a fiscal deduction of 50% fixing the period of deduction equal to 5 years.

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Section: Introductionmentioning

confidence: 99%

Economic Analysis of a Photovoltaic System: A Resource for Residential Households

2017

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“…This territory has a low level of solar irradiation than other Italian regions [33]. The quantity of energy produced is calculated in function of several technical data as highlighted in Equation (5)- [3].…”

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The Economic Feasibility of Residential Energy Storage Combined with PV Panels: The Role of Subsidies in Italy

2017

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A solar photovoltaic system produces electricity by converting energy from the sun. By the end of 2016, the global installed solar photovoltaic capacity reached 305 GW. Its growth is impressive in the last years; in fact, it was only equal to 41 GW in 2010. However, Europe has installed only 6.9 GW in 2016 (−1.7 GW in comparison to previous year) and this annual power installed is equal to 9% of global one in according to data released by Solar Power Europe. The profitability of PV systems in mature markets depends on the harmonization between demanded energy and produced one residential energy storage when combined with photovoltaic panels is able to increase the share of self-consumption. This work proposes a mathematical model, in which a Discounted Cash Flow analysis is conducted to evaluate the financial feasibility of photovoltaic-integrated lead acid battery systems in Italy. The indicator used is Net Present Value. Furthermore, a break-even point analysis, in terms of an increase of self-consumption, is conducted. The residential sector is investigated and energy storage system investment is incentivized by fiscal deduction and regional subsidies. The analysis provides several case studies, determined by combinations of the following variables: photovoltaic plant size, battery capacity, the increase of the share of self-consumption, and the useful lifetime of energy storage system. The same case studies are proposed also in four alternative scenarios, where is the modified the structure of subsidies. Results confirm that the profitability can be reached in presence of subsidies.

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“…The NPV calculation is described in equation (5); where I 0 is the initial investment; F t represents the cash flow for period t; and, k is the interest rate. In the analysis that was performed, defining the time needed for the investment to become profitable [36][37][38] . These parameters will be described in more detail below.…”

Section: Economic Analysismentioning

confidence: 99%

Estimation of photovoltaic potential for electricity self-sufficiency: A study case of military facilities in northwest Spain

Suárez‐García¹,

Arce²,

Álvarez-Feijoo³

et al. 2017

Journal of Renewable and Sustainable Energy

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Renewable energies, including photovoltaic energy, are attracting widespread international attention, in reaction to worsening environmental problems and the diminishing long-term sustainability of fossil fuel energies. In this work, the potential benefits of installing photovoltaic panels on several buildings at the Spanish Naval Military School (Escuela Naval Militar, ENM) of Marín are considered. The two salient advantages are: significant economic savings from the production and the sale of electricity to the Spanish Electricity Network, and by achieving self-sufficiency in electricity requirements. Consequently, the main objective of this work is to estimate the energy potential of photovoltaic installations on the roofs of the ENM buildings. This is the first time that a project of this nature and size is presented to the Spanish Navy. To that end, a three-dimensional geographic analysis of the buildings is performed using three freeware software: Trimble SketchUp, Skelion and Photovoltaic Geographical Information System (PVGIS). An economic study is also conducted to determine the feasibility of the installations, by estimating the Net Present Value (NPV) of the photovoltaic installation and the Internal Rate of Return (IRR) associated with the project. Subsequently, a sensitivity analysis that considers the most important parameters for the calculation of the amortization period is reported. The results show that the installation could fulfill the ENM electrical demands and could, in addition, generate significant economic benefits. The conclusions end with a recommendation to consider the merits of the proposed solution.

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Environmental and economic analysis of building integrated photovoltaic systems in Italian regions

Cited by 95 publications

References 30 publications

Economic Analysis of a Photovoltaic System: A Resource for Residential Households

Economic Analysis of a Photovoltaic System: A Resource for Residential Households

The Economic Feasibility of Residential Energy Storage Combined with PV Panels: The Role of Subsidies in Italy

Estimation of photovoltaic potential for electricity self-sufficiency: A study case of military facilities in northwest Spain

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