SCI-Network - Sustainable Construction @ Innovation through Procurement

SCI Network - SCI-Network - Sustainable Construction @ Innovation through Procurement
Setting targets and requirements

Setting targets and requirements


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No matter what type of construction project is being undertaken, the final result achieved will greatly depend on the targets and requirements set by the contracting authority, and how effectively these are defined and communicated to those carrying out the work.
It is important to consider not only which target or standard to aim for, but also how this is effectively integrated within the procurement process.

You can browse through the recommendations and snapshots of this chapter by clicking on the below expandable sections. You can also download the chapter in pdf by clicking here.

Recommendation 3.A: Identify an ambitious minimum quantified energy performance requirement for the construction project, based on nationally available assessment and certification schemes. Where possible, target the Passive House standard for all new construction.

Recommendation 3.B: Alternatively, consider setting a moderate minimum performance requirement and an additional aspirational target to challenge the market to deliver. This may be the best model if there is a fixed investment budget for the project.

Recommendation 3.C:
Requirements and targets should be established during the planning phase of the project, and clearly communicated throughout.

Recommendation 3.D: Always ensure that energy performance is assessed at the whole building level and not at the individual component/material level.

  • Snapshot: Passive House school in Germany - The necessary closure of several schools in Oberspreewald-Lausitz was turned into an opportunity to build and maintain a single school to passive house standard for the separate institutions as a public private partnership (PPP). Criteria were developed together with the Passive House Institute in Darmstadt, including a maximum heating demand of 15 kWh/(m²a). Construction work was completed within 14 months.
  • Snapshot: Clear sustainability targets for “The Hive”, UK - For the construction of the new Worcestershire Library and History Centre (“The Hive”) in the UK, the county council, city council and university set high sustainability targets, which were all clearly defined at the project’s inception. These were included in a comprehensive 160 page Detailed Design Statement (DDS) shared with potential bidders. An ambitious CO2 target of 15.8 kgCO2/m2 was set, which became a key performance indicator for the contract. This has resulted in a solution that utilises river water in the summer to cool the building and in winter some heat is drawn from the river to enhance underfloor heating. This collaboratively developed measure is a major contributor in achieving the building’s exceptionally low CO2 output.