With the increasing demand for more sustainable and energy efficient buildings and services to combat climate change, designing for climate change has become essential to virtually every new building and refurbishment.

Using the CIBSE Future Weather Data sets we can simulate the performance of your buildings over three future time periods, the 2020s, 2050s and 2080s. The three time periods also have a range of different emission scenarios that can be simulated:

• 2020s – High emissions scenario – 10th, 50th, 90th percentile
• 2050s – Medium – 10th, 50th, 90th
• 2050s – High – 10th, 50th, 90th
• 2080s – Low, 10th, 50th, 90th
• 2080s – Medium – 10th, 50th, 90th
• 2080s – High – 10th, 50th, 90^th

As well as different emissions scenarios, buildings can also be simulated using different Design Summer Years (DSYs).

• DSY1: Moderately Warm Summer
• DSY2: Short, Intense Warm Spell
• DSY3: Long, Less Intense Warm Spell

The DSY1 is used when carrying out standard overheating assessments such as BB 101 and TM52. The others DSY2 and DSY3 can be used to provide a greater understanding of how your building would react during different types of summers.

Walker Energy Analysis can provide the calculations to demonstrate how you building performs for all future climate scenarios and holds up to climate change.