There is a growing need for green energy nowadays, but this often clashes with limited space avai... more There is a growing need for green energy nowadays, but this often clashes with limited space availability in buildings and several techno-economical constraints. An alternative approach based on integration and optimisation of different energy carriers can be undertaken. A feasibility analysis of Integrated Building Energy Systems (IBES) in non-residential buildings is carried out. An IBES may represent a feasible way to go towards post-carbon cities and may be applied to different building types, making a low-carbon target profitable. The model looks at generation, storage, heating and cooling technologies, in particular understanding the multi-carrier energy system interactions. The model seeks to optimise the choice of technologies and the dispatch of energy based on specific factors (costs or CO 2 emissions). An office building located in Los Angeles and London is modelled using the model DER-CAM. Various optimisation scenarios are run, looking at the impact that different cost-emissions weightings have on the performance of the IBES. The outputs show the investments required to implement the scenarios designed, the optimal dispatch of energy carriers and both the cost and emission savings this approach has created. In comparison to the business-as-usual case, each optimisation scenario leads to emission savings. Systems' reliability has increased through reduced electricity purchase. Different results have been obtained in different cities, with higher cost savings in Los Angeles than in London. Thus, an IBES approach is more efficient in cities with warmer climates.
There is a growing need for green energy nowadays, but this often clashes with limited space avai... more There is a growing need for green energy nowadays, but this often clashes with limited space availability in buildings and several techno-economical constraints. An alternative approach based on integration and optimisation of different energy carriers can be undertaken. A feasibility analysis of Integrated Building Energy Systems (IBES) in non-residential buildings is carried out. An IBES may represent a feasible way to go towards post-carbon cities and may be applied to different building types, making a low-carbon target profitable. The model looks at generation, storage, heating and cooling technologies, in particular understanding the multi-carrier energy system interactions. The model seeks to optimise the choice of technologies and the dispatch of energy based on specific factors (costs or CO 2 emissions). An office building located in Los Angeles and London is modelled using the model DER-CAM. Various optimisation scenarios are run, looking at the impact that different cost-emissions weightings have on the performance of the IBES. The outputs show the investments required to implement the scenarios designed, the optimal dispatch of energy carriers and both the cost and emission savings this approach has created. In comparison to the business-as-usual case, each optimisation scenario leads to emission savings. Systems' reliability has increased through reduced electricity purchase. Different results have been obtained in different cities, with higher cost savings in Los Angeles than in London. Thus, an IBES approach is more efficient in cities with warmer climates.
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Papers by Alessandro Grieco