EAC - Comunicações em actas de encontros científicos internacionais
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- Harnessing Solar Energy for Urban Regeneration: Advancing Energy Communities to Mitigate Poverty and Empower Social NeighbourhoodsPublication . Viana, Susana; Aelenei, Laura Elena; Ortigão, Margarida; Rodrigues, Ana; Cunha-e-Sá, Maria A.; Goncalves, Helder; Dinis, J.; Monteiro, Casimiro; Cabral, Joaquim; Segura, Iván Luque; Salom, J.ABSTRACT: This paper investigates Renewable Energy Communities (RECs) as innovative instruments for urban regeneration, focusing on their dual role in advancing decarbonisation and mitigating energy poverty. Cascais Municipality, aligned with EU climate neutrality objectives, launched a pilot in Alcabideche integrating technical deployment with social engagement. The intervention included photovoltaic (PV) systems on five public buildings (two with storage) and five social housing blocks, complemented by three electric vehicle chargers. Preliminary monitoring indicates reductions in household electricity bills of up to 30%, contributing directly to alleviating energy poverty. To complement the technical implementation, structured surveys and focus groups were conducted with residents and local stakeholders. Findings reveal high levels of interest in participating in RECs, though concerns remain regarding information accessibility, trust in governance structures, and long-term benefits. Citizen engagement activities proved essential in overcoming these barriers, reinforcing social acceptance and community ownership. The initiative is supported by the WeGenerate project, which provides frameworks for replicating REC models across Europe, linking technological innovation with participatory governance. Results demonstrate that socially inclusive RECs can simultaneously enhance energy efficiency, reduce carbon emissions, and strengthen social cohesion, positioning them as critical enablers of equitable and resilient urban regeneration.
- Movable Insulation Systems in Building Envelopes: A Review of Heat Transfer MechanismsPublication . Teixeira, J.; Aelenei, Daniel; Santos, Filipe; Aelenei, Laura ElenaABSTRACT: Movable insulation systems have attracted growing interest as a strategy to enhance the thermal adaptability of building envelopes and improve building energy performance under variable climatic conditions. These systems include various solutions that modify the thermal configuration of the envelope through the displacement or reconfiguration of insulating components. Existing studies have examined such systems across different climates, building types, and design approaches. However, existing literature reviews are often organised according to typological or construction-based classifications, rather than by the underlying heat transfer mechanisms that govern their thermal behaviour. This article presents a review of movable insulation systems with a particular focus on the underlying heat transfer mechanisms through which they affect envelope performance. The review analyses how movable insulation influences conductive, convective, and radiative heat transfer, and how these mechanisms relate to the thermal behaviour of the envelope in different operating modes. The review also addresses how performance has been modelled and assessed in the literature, identifying this as a comparatively underexplored dimension of movable insulation research. By structuring the literature around fundamental heat transfer processes, the review aims to provide a coherent framework for interpreting existing research, identifying knowledge gaps, particularly in modelling and performance evaluation.