Photovoltaic self-consumption in buildings: A review

Luthander, Rasmus; Widén, Joakim; Nilsson, Daniel; Palm, Jenny

doi:10.1016/j.apenergy.2014.12.028

Cited by 868 publications

(484 citation statements)

References 80 publications

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“…A mathematical description of self-consumption and solar fraction can be found in Luthander et al (2015). If L(t) denotes the instantaneous electric load including appliances, heat pump and auxiliary heater, and P(t) is the instantaneous power from the PV system, the directly consumed PV power M(t) can be defined as (1) if no electric storage is used.…”

Section: Final Energy Solar Fraction Self-consumption and Seasonal mentioning

confidence: 99%

See 1 more Smart Citation

Control Algorithms for PV and Heat Pump System Utilizing Thermal and Electrical Storage

Psimopoulos¹,

Leppin²,

Luthander³

et al. 2016

Proceedings of EuroSun2016

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In this study a detailed model of a single-family house with an exhaust air heat pump and photovoltaic system is developed in the simulation software TRNSYS. The model is used to evaluate three control algorithms using thermal and electrical storage in terms of final energy, solar fraction, self-consumption and seasonal performance factor. The algorithms are tested and compared with respect to energetic improvement for 1) use of the heat pump plus storage tank for domestic hot water and space heating, 2) use of the electrical storage in batteries and (3) use of both electrical and thermal storage. Results show the highest increase of self-consumption to 50.5%, solar fraction to 40.6% and final energy decrease to 6923 kWh by implementing the third algorithm in a system with 9.36 kW PV capacity and battery storage of 10.8 kWh. The use of electrical energy storage has higher positive impact compared to the thermal storage with the settings and component sizes used. The combined use of thermal storage and batteries leads to final energy savings that are nearly the same as the combined savings of thermal storage and batteries separately, showing that they are mostly independent of one another for the settings of this study.

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Section: Final Energy Solar Fraction Self-consumption and Seasonal mentioning

confidence: 99%

“…The majority of the studies focus on PV in combination with battery storage but heat pumps plus hot water storage have also attracted some interest in recent years (Binder et al, 2012;Hesaraki and Holmberg, 2013;Hirvonen et al, 2016;Luthander et al, 2015;Thygesen and Karlsson, 2014).…”

Section: Final Energy Solar Fraction Self-consumption and Seasonal mentioning

confidence: 99%

Control Algorithms for PV and Heat Pump System Utilizing Thermal and Electrical Storage

Psimopoulos¹,

Leppin²,

Luthander³

et al. 2016

Proceedings of EuroSun2016

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show abstract

“…Undisputedly, battery storage can increase the photovoltaic self-consumption in buildings. 161 Various types of electrical energy storage solutions exist which can be used from a single building (kW h) to district (MW h) to megacity (GW h) scale. 162 Energy storage solutions combined with energy district networks and smart grids are likely to see a massive increase in implementation in the coming decades.…”

Section: Electrical Energy Storagementioning

confidence: 99%

Energy in buildings—Policy, materials and solutions

Koebel

Wernery

Malfait

2017

MRS Energy & Sustainability

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Buildings account for ∼40% of global energy demands, and the increased adoption of innovative solutions for buildings represents an enormous potential to reduce energy demands and greenhouse gas emissions. Here, we critically review the current and future materials and solutions for the construction sector. We describe how policy affects innovative businesses and the adoption of new products and solutions. We investigate how the building envelope and user behavior determine building energy demands. Compared to conventional solutions, superinsulation materials (vacuum insulation panels, silica aerogel) can achieve the same thermal performance with drastically thinner insulation. With low-emissivity coatings and appropriate filler gasses, double and triple glazing reduces thermal losses by an order of magnitude. Vacuum and aerogel glazing reduce these even further. Switchable glazing solutions maximize solar gains during wintertime and minimize illumination demands whilst avoiding overheating in summer. Upon integration of renewable energy systems, buildings become both producers and consumers of energy. Combined with the dynamic user behavior, temporal variations in energy production require thermal and electrical storage and the integration of buildings into smart grids and energy district networks. The combination of these measures can reduce the energy consumption of the building's stock by a factor of three.

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“…Another interesting application is represented by a combination of an energy storage system (ESS) with a PV system [8]. This way, with an ESS it is possible to increase the self-consumption quota by 10%-24% with 0.5-1 kWh per installed kW of PV power [9]. The other main technology in able to increase PV self-consumption is the demand side management (DSM) [10].…”

Section: Introductionmentioning

confidence: 99%

Industrial Photovoltaic Systems: An Economic Analysis in Non-Subsidized Electricity Markets

2015

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Photovoltaic (PV) systems are becoming a relevant electricity source, characterised by a growing trend in the last years. This paper analyses the economic feasibility of investments in industrial PV systems of different sizes (200 kW, 400 kW, 1 MW, and 5 MW), in the absence of subsidies, and in a mature market (Italy). The selected indicators for this kind of assessment are net present value (NPV) and discounted payback time (DPBT). Furthermore, the environmental advantage in comparison to fossil sources of energy is evaluated through the reduction of carbon dioxide emissions (ER cd ). Finally, a sensitivity analysis on critical variables (percentage of self-consumed energy, average annual insolation rate, annual electricity purchase price, annual electricity sale price, unitary investment cost and opportunity cost) is conducted. Results highlight the strategic role of self-consumption in a market characterised by an absence of public policy incentives and the presence of interesting economic opportunities for industrial applications.

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Photovoltaic self-consumption in buildings: A review

Cited by 868 publications

References 80 publications

Control Algorithms for PV and Heat Pump System Utilizing Thermal and Electrical Storage

Control Algorithms for PV and Heat Pump System Utilizing Thermal and Electrical Storage

Energy in buildings—Policy, materials and solutions

Industrial Photovoltaic Systems: An Economic Analysis in Non-Subsidized Electricity Markets

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