Impact of fixed charges on the viability of self-consumption photovoltaics

Solano, Juan; Brito, M.C.; Caamaño‐Martín, E.

doi:10.1016/j.enpol.2018.07.059

Cited by 20 publications

(10 citation statements)

References 36 publications

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“…Based on the information provided by ELECGALAPAGOS, PV replacement cost is 40% of the capital cost alone, discounting civil work (37%) and metal structures (3%) [105] and DG replacement cost is the same as the capital cost [105]. Table 3 also shows interconnection costs [39] and distributed energy costs [102,106] which are applied in the scenarios described in Section 3.3.…”

Section: Operating Reservementioning

confidence: 99%

“…For this scenario, monocrystalline PV modules of 250 W with an efficiency of 15.46% were selected. The PV installation cost is $1432 US/kW [102]; the replacement cost is 15% of the initial investment (15 years of inverter lifetime) [106]; and the O&M cost is 1.25%/year of the initial investment [105]. The PV generator's lifetime is 20 years.…”

Section: Distributed Generation Scenariomentioning

confidence: 99%

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Decarbonizing the Galapagos Islands: Techno-Economic Perspectives for the Hybrid Renewable Mini-Grid Baltra–Santa Cruz

et al. 2020

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The fragile ecosystem of the Galapagos Islands is being affected by population growth, intensive tourism, the exploitation of local resources and the high consumption of imported fossil fuels. This unsustainable development model makes the provision of services such as electricity a challenge. This research investigates the hybrid renewable mini-grid Baltra-Santa Cruz, which represents 62% of the electricity generation mix of the archipelago. This study aims to support the Galapagos Zero Fossil Fuel Initiative and the Sustainable Development Goal 7 through the reduction in diesel consumption and electricity generation costs. To do so, HOMER Pro, a specialized hybrid renewable mini-grid planning tool, is used to perform several techno-economic assessments, focusing on different electricity demand scenarios. Therefore, multiple pathways are compared to identify the most reliable alternatives towards the progressive decarbonization of this hybrid system. The results indicate that installing 18.25 MWp of photovoltaic and 20.68 MWh of battery capacity could reduce the Levelized Cost of Electricity (LCOE) from 32.06 to 18.95 USc/kWh, increasing the renewable energy (RE) share from 18% to 39%. Additionally, the successful application of energy efficiency measures would even reduce the LCOE to 17.10 USc/kWh. What is more, distributed energy is considered the most attractive way to involve islanders in the energy transition process. Finally, this paper offers a comprehensive business model proposal to achieve a resilient energy supply, based on a combination of auctions and energy community models, which demands high political will, reliable and innovative regulations and social awareness about energy use.Sustainability 2020, 12, 2282 4 of 47 and implement RE projects. In addition, the Ecuadorian Electricity Master Plan (PME) 2016-2025 [44] contains the list of priority projects to increase renewable electricity generation. Moreover, those possible new partners can propose additional RE initiatives thanks to the General Regulation of the LOSPEE. This regulation [43] is based on the targets of the National Plan of Development 2017Development -2021 which prioritize RE resources exploitation to reduce the dependency of fossil fuels. What is more, new companies interested in developing RE projects can receive an income-tax-exemption for five years [46].As regards distributed generation, the photovoltaic microgeneration to electricity self-sufficiency for final consumers of electricity regulation [47] and its amendment [48] promote the installation of PV systems up to 300 kWp per user in the residential sector and below 1000 kWp per user in the commercial and industrial sectors. This regulation is not limited to rooftop PV systems. A net-metering scheme is applied to compensate electricity costs. Thanks to this mechanism, consumers are billed for their "net" electricity use and the associated costs become credits for the following months if the electricity balance is positive for users. [47]. The National Rate Schedule for ...

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Section: Operating Reservementioning

confidence: 99%

Section: Distributed Generation Scenariomentioning

confidence: 99%

Decarbonizing the Galapagos Islands: Techno-Economic Perspectives for the Hybrid Renewable Mini-Grid Baltra–Santa Cruz

et al. 2020

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“…This opportunity should be seriously considered by governmental organizations and power system operators, as PV systems can clearly support the operation of the power system. It is, however, important to note that electricity tariffs may significantly affect the self-consumption rate [12] and also that some new conceptual business models might be needed for such situations [13]. On the other hand, building owners may consider not only a PV system but also, bearing in mind the energy flow, the potential application of energy storage technology [14,15].…”

Section: Energy Flowmentioning

confidence: 99%

Energy self-consumption from PV systems: estimations for two office buildings in Krakow (Poland)

Jurasz

Mikulik

2019

E3S Web Conf.

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The analysis presented in this paper focuses on the energetic aspects of the use of photovoltaic (PV) systems in office buildings. Energy generation from PV system has been simulated on an hourly time scale and compared with the energy demand of two office buildings located in Krakow (southern Poland). The buildings' annual load exceeded 1 GWh in both cases. The analysis dealt with estimating how much energy generated by a PV system can be utilized on-site (self-consumption) and how big the energy surpluses will be (energy generation greater than demand). Capacities of PV systems ranging from 0.1 to 1.0 MW have been considered. Also, the impact of PV generation on the residual load parameters and changes in the maximal monthly and hourly energy demand were investigated. The results show that although the building energy demand is similar (in terms of annual volume of energy consumed) the potential of PV systems to cover it is different. The 100-kW PV system can reduce the observed hourly peak energy demand by 1% in December but by over 30% in June (respectively, from 171 kWh to 169 kWh, and from 333 kWh to 255 kWh). Considering the annual patterns of the office buildings' energy demand and PV generation (both have their respective peaks in summer), the application of a PV system changes the office building energy demand pattern significantly from the perspective of the power system operator. After installing 500 kW PV in an office building consuming 1 GWh annually, the months with highest demand are no longer in summer but in winter.

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“…We establish a link between bottom-up assessments, which focus on the individual installation level (see, e.g., López Prol and Steininger, 2017, Solano et al, 2018, and system-level analyses, which do not include any representation of the prosumage (Hinz et al, 2018) or the transmission grid level (Kubli, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…We take the DSOs' perspectives and allow them to incentivize prosumage to reduce network congestion. This is distinct from other approaches in the literature, which focus on prosumage and examine merits and implications of self-consumption (Green and Staffell, 2017, Yu, 2018, Solano et al, 2018. We calibrate the model to power system data for Germany for the year 2015 and add proportional storage capacities to each small-scale PV unit.…”

Section: Introductionmentioning

confidence: 99%

Modeling coordination between renewables and grid: Policies to mitigate distribution grid constraints using residential PV-battery systems

2019

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Distributed photo-voltaic (PV) generation is one of the pillars of energy transitions around the world, but its deployment in the distribution grid requires costly reinforcements and expansions. Prosumage -consisting of a household-level PV unit coupled with a battery storage system -has been proposed as an effective means to facilitate the integration of renewable energy sources and reduce distribution grid stress. However, tapping its full potential requires regulatory interventions; otherwise, system costs could rise despite increasing flexibility. We analyze the effectiveness of different policy schemes to mitigate the need for distribution capacity expansion by incentivizing beneficial storage operation. Our novel top-down modeling approach allows analyzing effects on market prices, storage dispatch, induced distribution grid requirements, system costs, and distributional implications. Numerical results for German power system data indicate that required distribution grid requirements can be reduced through simple feed-in policies. A uniform limit on maximum grid feed-in can leave distribution system operators better off, even if they fully compensate prosumage households for foregone revenue. Policies imposing more differentiated limits at the regional level result in only marginal efficiency improvements. Complete self-sufficiency (autarky) is socially undesirable, as it confines important balancing potential and can increase system costs despite adding storage.

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Impact of fixed charges on the viability of self-consumption photovoltaics

Cited by 20 publications

References 36 publications

Decarbonizing the Galapagos Islands: Techno-Economic Perspectives for the Hybrid Renewable Mini-Grid Baltra–Santa Cruz

Decarbonizing the Galapagos Islands: Techno-Economic Perspectives for the Hybrid Renewable Mini-Grid Baltra–Santa Cruz

Energy self-consumption from PV systems: estimations for two office buildings in Krakow (Poland)

Modeling coordination between renewables and grid: Policies to mitigate distribution grid constraints using residential PV-battery systems

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