Agreed performance criteria for efficient housing solutions

Panel: Panel 4. Building the bridge from lab to customer

Authors:
Ph.D Hans Westling, Promandat AB
Ingvar Andreasson, AB Familjebostäder
Ronny Bergens, Fastighetsägarna Stockholmv

Abstract

A Buyer Group from leading multifamily housing companies has been working in Sweden for more than 10 years. The members of the Buyer Group represent about 70% of all apartments in Sweden. The Buyer Group has initiated a number of energy-efficient projects during these years. Refrigerators/freezers, washing machines, driers, ventilation/filters and lighting are among the areas for activities. A number of cases will be analysed. Lessons learned will be compared with some experiences from other innovation projects.

The overall objectives were to inspire development of more efficient solutions in the energy and building area. The immediate goal was to reduce the use of energy, the environmental impact (use of water, noise), or to reduce the total cost for both production/construction and operation.

Within all the cases analysed the procedure used was technology procurement including creation of a group of customers/buyers in which the requirements for the work were formulated as performance criteria. These criteria were to be fulfilled by the contractors and/or suppliers in proposals submitted, prototypes, and full-scale pilot projects. Different mechanisms for rewards have been used.

Concrete results in the cases are components and systems with 20-50% energy reduction. The project managers and experts involved have identified a large number of lessons learned, which will be presented in the paper.