×
Menu
Index

1.1 What is Part L2 (2021) ApacheSim?

Part L2(2021) ApacheSim is a facility within the VE Compliance View which provides the means to test compliance with Part L2 of the 2010 Building Regulations ((2021 England edition, in force from 15th June 2022, 2022 Wales edition in force from 29th March 2023) and to generate Energy Performance Certificates (EPCs) for non-domestic buildings within the same framework, using a dynamic simulation model (DSM). An alternative route to compliance  based on BRE’s Simplified Building Energy Model (SBEM) is also provided within VE Compliance, and documented in other user guides (for example PartL2(2021)VE-SBEM).
Part L2 (2021) ApacheSim applies to new buildings other than dwellings in England and Wales.
Data for the Part L2 (2021) ApacheSim analysis is taken from the Virtual Environment model, supplemented where necessary by inputs specific to the requirements of Part L2 (2021).