In centrally supplied apartment buildings, the energy and water consumption of the apartments varies greatly. In the case of heating, consumption in comparable units varies by a factor of 3, in the case of water by as much as a factor of 8. The consumption-based billing of energy and water costs creates transparency, fairness and an incentive for the careful use of resources.
This billing model was created with the aim of standardising and simplifying the billing methodology and adapting it to the new building standards. From 2018, it will replace the previous billing model for consumption-based billing of heating and hot water costs (VHKA) and the billing model for consumption-based billing of water costs (VWKA) in the application. The new model for consumption-based energy and water cost billing (VEWA) combines these two older industry guidelines and contains modern adjustments (e.g. integration of cooling energy, handling of contracting). Also, due to the good thermal insulation of new buildings, the previously applied position compensation is no longer used.
As a significant expansion, the billing of mergers for own consumption (ZEV) was integrated into VEWA. This is because since January 1, 2018, in the case of multi-party buildings with consumption of self-produced electricity (from photovoltaic or other energy sources), the owner or its administration can be responsible for measuring and billing electricity consumption.
With the VEWA billing model, great importance was attached to supplementing the billing recommendation with easily understandable graphics and key figures that provide residents with a quick overview and create an incentive to save money.
The model for consumption-dependent energy and water cost billing (VEWA) was created by the Swiss Association for Energy and Water Cost Billing (SVW) on behalf of the Swiss Federal Office of Energy (SFOE). It is also supported and recommended for use by all important stakeholders whose representatives participated in the working group of this project. The obligation and scope of the installation of metering devices and consumption-based billing of energy and water costs are regulated differently from canton to canton.
Irrespective of whether or not the billing of a particular cost category is mandatory, the PDF brochure in German and PDF brochure in French show how professional billing can be set up.