Endorse of renewable energy plants, still an alternative investment in Spain?

Guaita-Pradas, Inmaculada; Soucase, Bernabé Marí

doi:10.15764/er.2014.02001

Cited by 11 publications

(6 citation statements)

References 9 publications

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“…A recent study of a 20-kW PV facility in the Spanish building sector revealed a cost of 2500/kWp. The payback period of the installation is reported to be of the order of 13 years [77]. Total amount of energy produced in kWh/(m 2 yr), compared to the whole floor area (after dividing by the total floor area and multiplying by the roof area to compare with the total energy demand.…”

Section: Resultsmentioning

confidence: 99%

Case Study of a Nearly Zero Energy Building in Italian Climatic Conditions

2017

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Abstract:The building sector is an important stakeholder in the energy and environmental scenario of any country. It continues to grow across the world due to factors such as population growth, and economic and infrastructure development. Within the European Union, buildings account for 40% of the total energy requirements and 30% of carbon dioxide emissions. The building sector is keen to improve its sustainability standards and also to help achieve the 20-20-20 targets set by the European Union. The present work aims to design a nearly zero energy sports gymnasium building in Calolziocorte, Italy. Various sustainability techniques are applied in an integrated design project approach using ECOTECT software to undertake the energy modelling exercise. Firstly, the base-case is modelled with conventional building materials and the total energy demand is calculated. Duly considering the local climatic conditions, sustainable materials are chosen for walls, the floor, the roof, and windows and a 38% reduction is noted in the total energy demand of the building compared to the base-case. The impact of louvers as a passive design technique has also been examined on the total energy demand of the building. The monthly load/discomfort analysis is undertaken for various individual functions inside the building to identify the critical areas that consume more energy. The monthly load/discomfort analysis is performed with the proposed materials and the air infiltration rate is improved through the building envelope and 63% reduction is noted in the total energy demand of the building compared to the base-case. A solar access analysis is conducted to understand the on-site energy production and then the building net energy demand is calculated, which is reduced to 90% compared to the base-case.

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Section: Resultsmentioning

confidence: 99%

Case Study of a Nearly Zero Energy Building in Italian Climatic Conditions

2017

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“…The LCOE can be defined as the ratio between the sum of costs and the value of energy production over the life of the project (of the facility) and can be applied to virtually all technologies of Energy especially renewable energies [24,25]. It is calculated using the following equation:…”

Section: Leveled Cost Of Energy (Lcoe)mentioning

confidence: 99%

“…The first year for a purchase price of 90 Fcfa/kWh, the amount of outflows is 161 667 000 Fcfa for Ouahigouya and 154 802 340 Fcfa for Gaoua. Taking into account that the PV plant is degraded over time and loses its production capacity [17][18][19][20][21][22][23][24][25][26], Fig. 5 shows the production of a 10 MWp installation in Ouahigouya (black curve) and Gaoua (red curve) depending on the year.…”

Section: Influence Of the Purchase Price On The Return On Investmentmentioning

confidence: 99%

Financial Analysis of Photovoltaic Installations in Burkina Faso

Mogmenga¹,

Hartiti²,

Diallo³

et al. 2019

PSIJ

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This article focuses on the economic and financial calculations concerning the production of electrical energy from photovoltaic installations connected to the grid. The estimation of energy production is done in fifteen cities in Burkina Faso. Among these localities, ten cities are homes to synoptic stations. The economic return in terms of the return on investment of the electricity production from PV installations is calculated by using the method of budgeted capital. The cost of the energy produced by photovoltaic installations during their operational lives (taken here equal to 25 years) is calculated and compared with other economic parameters. The observation shows that Gaoua records the smallest production and that the highest production is recorded in Ouahigouya. The analysis of the cash flows generated by the operation of these PV installations shows that the profits are perceptible from the 8th year in Ouahigouya and the 9th year in Gaoua. An Internal Rate of Return (IRR) of 14.42% is obtained in the locality of Ouahigouya. For locality of Gaoua the IRR is equal to13.72%. The calculation of Leveled Cost Of Energy (LCOE) gives an average value of 60 Fcfa / kWh for a discount rate of 4%. This value is almost equal to half the average price of electricity in Burkina Faso, which is 119 Fcfa / kWh.

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“…Two Royal Decrees (RD 436/2004 [6] and RD 661/2007 [7]) established very attractive remuneration frameworks for photovoltaic generation. The apparent low risk level of investment [8] was widely accepted among investors, resulting in a number of installations that far exceeded expectations within that category [9]. The situation provoked significant deficits for the electrical system and forced the regulator to modify the retributive conditions (Royal Decree 1/2012 [10]).…”

Section: Introductionmentioning

confidence: 99%

“…De la Hoz et al [13] provided a methodology for determining the cumulative cost to the Spanish electricity system caused by the excessive overestimation of the PV power targets under RD 661/2007 and the economic consequences for investors following the introduction of retroactive changes to the regulatory schemes. Guaita et al [8] showed the economic profitability of a 20 kW p PV plant despite the high variations of incentive policies, due mainly to technological innovations and the maturity of the PV market. Guerrero-Lemus et al [14] analyzed the benefits of Law 24/2013 of the Electrical Sector on insular systems where the new PV plants represented an opportunity to reduce electricity costs.…”

Section: Introductionmentioning

confidence: 99%

Review of the Legislative Framework for the Remuneration of Photovoltaic Production in Spain: A Case Study

2020

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Spain is among the European countries with the greatest photovoltaic potential. During the first decade of the 2000s, Spain was a European leader in installed photovoltaic power and job creation in the renewable energy sector, strongly influenced by a very favorable regulatory framework and public subsidies at a time of economic growth. That situation would be completely reversed with the regulatory changes introduced in 2012 to combat the tariff deficit and the instability in the electricity supply system, problems accentuated by the economic crisis. The main objective of this study is to present an exhaustive review of the legislative changes that have affected photovoltaic energy in Spain. Using real data on electricity production and the remuneration of a typical photovoltaic plant, we show that there was a very significant fall in the economic returns that investors had come to expect, within a system that prioritized, first and foremost, the initial investment rather than the levels of electricity production. The changes to the legislative framework affecting a typical 100 kWp photovoltaic (PV) facility that entered into service before 2007 provoked a significant decrease of 8.7% in expected revenues, calculated from real data of production and income. These economic losses can be even higher, with a drop in revenue of almost 25% if the entire period of the installation’s useful life is analyzed. Public support for renewable energy is important for its introduction into the electricity market, but so is regulatory stability that offers investment security and predictability for maintaining investment and development in the renewable energy sector.

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Endorse of renewable energy plants, still an alternative investment in Spain?

Cited by 11 publications

References 9 publications

Case Study of a Nearly Zero Energy Building in Italian Climatic Conditions

Case Study of a Nearly Zero Energy Building in Italian Climatic Conditions

Financial Analysis of Photovoltaic Installations in Burkina Faso

Review of the Legislative Framework for the Remuneration of Photovoltaic Production in Spain: A Case Study

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