The energy performance of dwellings of non-profit housing associations in the Netherlands 2017 - 2018

Abstract

Following regulation of the European Union, objectives were formulated to reduce energy consumption of the built environment in the Netherlands. For the stock of Dutch non-profit housing associations it was agreed to improve the average energy performance to an average energy index of 1.40 in 2020. This research assesses and gives insights in the progress to this objective for over 2.0 million dwellings of over 250 Dutch non-profit housing associations in 2017 and 2018. The assessment consists of an analysis of applied renovation measures, changes of the stock like new construction and demolishing, and clarifying characteristics of housing associations. It is concluded that large urban housing associations with adequate financial positions drive the improvement of the average sectoral energy performance. The improvement happens for a large part within the existing stock, mostly with traditional improvements like improved heating installations and improved insulation. Innovative solutions like: photovoltaic solar systems, combined heat and power systems, biomass systems, heat pumps and external heating, are responsible for a relative small part of the improvement within renovations. New construction and demolishing are also responsible for a relative small part of the annual improvement, but there is potential to improve this.

Analysis of Occupant Behaviours in Energy Efficiency Retrofitting Projects

“…Indoor temperature and hours of heating system operation Enhancing heating installations [18,32,33] Comprehensible ventilation system interfaces and functioning to users Ventilation system adapting the building design to users' needs [34,35] User interaction systems Residents' satisfaction (control, usability, suitability for varying preferences, financial security, comfort, and security)…”

Occupants’ Inquiries for Energy Efficiency Retrofitting in the Netherlands

“…The Dutch housing stock includes 7.5 million houses. Most are heated by natural gas and have bad thermal energy conditions [2]. The Ministry of Economic Affairs in the Netherlands has introduced a new policy to promote initiatives that support individuals using renewable energy in the heating sector rather than using natural gas by 2050 [3,4].…”

“…It leads to 200,000 zero-carbon renovations per year. An extensive innovation program is being developed [2]. This transition in energy involves moving away from fossil fuels, electrifying heating needs, raising awareness among residents, and adjusting energy taxes to support renewable energies.…”