Energy and economic analysis of building retrofit for Net Zero Energy Buildings

What is it about?

This paper presents a study on strategies for making an existing neighbourhood becoming net zero energy, focusing on the level of retrofit to apply to the buildings, on the proximity of the offset and on the selected offset equipment. The following discretization was considered: three levels of energy efficiency (low, medium and high), four offset generation alternatives (building integrated photovoltaic (PV), off-site large-scale PV, off-site largescale wind turbines and not offsetting) and two energy tariff types (subsidized and nonsubsidized).

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Why is it important?

One of the first efforts to study the idea of offsetting the energy drawn from the grids with local production. In this paper there is also a comparison of the alternatives such as district/neighbourhood-level facilities or adding more large-scale facilities to the national grid(s).