Self-sufficient renewable energy supply in urban areas: Application to the city of Seville

Multi-objective optimization of building-integrated microalgae photobioreactors for energy and daylighting performance

“…The algae façade as a green façade system, as a recently-emerged technology, has received significant attention in the field of high-performance buildings [8], and integrating microalgae culture systems into buildings is believed to offer advantages such as a reduced ecological footprint [8][9][10], bio-fuel production [11][12][13][14][15][16], decreased energy consumption in both building and bioreactor [6,17,18], adaptable shading [19,20], acoustical insulation, and economic and environmental viability [8,9]. The symbiosis between the microalgae culture system and the building can also be beneficial for medical purposes [21], human food [22] and animal feed production [23], wastewater treatment [24,25], and production of bio-products [26] as well as energy [27]. Yet, there have been few attempts to integrate algae bioreactors into building envelopes as a kind of green façades [28] for thermal regulation [29], despite there are numerous researches on green building envelopes in terms of thermal and energy performance [30][31][32][33].…”

Sedimentary basin geothermal favourability mapping and power generation assessments

“…Based on monthly averages, solar, wind, and biomass resources with battery storage occupying an area of 22 km² are found to be able to supply the electricity demand for the City of Vancouver, Canada (Bagheri et al, 2018). In Seville, Spain 10.8 km² of rooftop solar plus 11.2 km² of groundmounted solar with single-day storage are found to be able to provide all building and electrified transportation energy demands at costs of 0.08 €/kWh if 78% surplus generation can be sold to the grid; alternatively, seasonal storage is found to reduce the rural land area to 3.5 km² and avoid surplus generation, but electricity costs would be a prohibitive 1 €/kWh (Arcos-Vargas et al, 2019). In Wroclaw, Poland rooftop solar is found to be able to supply up to 36.1% of annual electricity demand, but the prohibitive cost of storage reduces that potential to 29% (Jurasz et al, 2019).…”

“…The method of determining the full range of renewable energy related RLAIs of electrification using the most abundant renewable sources is an improvement upon previous approaches. Previous work assesses the RLAI of urban renewable energy requirements for prescribed system compositions and limits the technology options to rooftop and ground-mounted solar with battery storage (Arcos-Vargas et al, 2019), or compares annual energy supply and demands without considering the need for storage (Bazán et al, 2018;Munu and Banadda, 2016). Others may underestimate storage requirements by using monthly average wind and solar generation profiles (Bagheri et al, 2018).…”

“…Bagheri et al (2018) find that a solar-wind-biomass-battery system using 22 km² of land area could supply the electricity demand of the City of Vancouver, but this finding might be low because monthly average wind and solar profiles supply the hourly demand. Arcos-Vargas et al (2019) find that a solar-battery system could provide the electricity demand of Seville, Spain using 11.2 or 3.5 km² of land area, depending on battery capacity. Munu and Banadda (2016) find that ground-mounted solar using 7.6 km² of land area could supply the annual electricity demand in Kampala, Uganda.…”

Photovoltaic systems and yearly net self-sufficient electricity supply in distribution networks

“…Such a functionality is important also form the viewpoint of yearly net self-sufficient energy supply of households and other smaller users introduced in some countries [8], which should be performed without additional investments in electricity network infrastructure. Some aspects of PV systems based yearly net self-sufficient energy supply are treated in [9][10][11] for Slovenia and worldwide in [12][13][14][15][16]. This paper analyses an extreme case where 100% yearly net self-sufficiency in electricity supply should be achieved by controllable PV systems.…”