OpenBuildings™ Designer Help

PartL 2021: Compliance Tab

Contains the resultant reports derived from PartL 2021 calculations.

SettingDescription
Compliance Report A Compliance document is automatically produced by SBEM. The compliance document has been designed as a complete summary of compliance information for the project. The document consists of the following sections.
  • Administrative information: The Building details and the Certifier details appear under Administrative information section exactly as entered in the Project Tab. Also, the Certification tool details of the calculation engine (Government SBEM tool) and the Energy Simulation interface program (PartL) appear under Administrative information section.
  • Emissions and energy consumption: The building's estimated CO2 emission rate (BER) and the target CO2 emission rate (TER) in kg/m2 .year appear under Emissions and energy consumption. It states whether the building's emission rate is less than or equal to the target value. If relevant for the Building Regulations, it also includes information about the building's calculated primary energy rate (BPER) and the target primary energy rate (TPER) in kWh/m2 .year, and it states whether the building's primary energy rate is less than or equal to the target value. Similarly, if relevant for the Building Regulations, it includes information about the building's calculated delivered energy rate (BDER) and the target delivered energy rate (TDER) in kWh/m2 .year, and it states whether the building's delivered energy rate is less than or equal to the target value.
  • Fabric and building services - The Fabric and building services section contains information about the building fabric, including the construction U-values, air permeability, and the building services systems. Then, the report states whether the building's U-values are better than the design limits for each construction type, whether the air permeability of the building is better than the worse acceptable standard, and whether any of the relevant building services parameters exceed the limiting standards in the Approved Documents.
  • Solar gains - Solar gains section contains information about whether the solar gains limit is exceeded in each of the zones where the solar gains check is applicable.
  • Regulation 25A - Regulation 25A section covers the consideration of alternative energy systems, as defined in Regulation 25A, in the new building design.
  • Technical Data Sheet (Actual Vs. Notional Building) - Displays some information about the overall energy performance of the building (Actual and Notional) and some specific information on the HVAC systems in the building (Actual and Notional). It also lists some general information, such as the weather location of the building and the percentages of total building floor area occupied by the different activity types.
  • Key Features - Highlights any items in the building fabric definitions whose specification is better than typically expected values and to which, according to the Approved Documents, Building Control is advised to give particular attention. (This section is no longer included for England's Part L calculations.)
Energy Report
An Energy report document is automatically produced by SBEM. The energy report document has been designed as a complete summary of the energy performance for the project. The document consists of the following sections.
  • Whole building carbon dioxide performance – Summary of the CO2 emission rate for the notional building, along with the target emission rate (TER) and the actual building emissions rate (BER).
  • Building energy by end use – Provides a graph detailing the annual breakdown of the energy consumed by each of the building services.
  • Building monthly energy by end use – Provides a graph detailing the monthly breakdown of the energy consumed by each of the building services.
  • Building systems energy – Provides a monthly breakdown of the energy consumption of each of the building services along with the annual totals.
Data Reflection Report (Actual)
A Data reflection report for the actual building is automatically produced by SBEM. This report contains all the data that SBEM uses to calculate the energy performance of the actual building along with some general details about the building. The document consists of the following sections,
  • General details
  • Building fabric details
  • All systems other than HVAC (DHW, PVC, SES, CHP)
  • HVAC system (repeated for each HVAC system)
  • Rooms in this HVAC system
  • Surface data in this room
Data Reflection Report (Notional)
A Data reflection report for the notional building is automatically produced by SBEM. This report contains all the data that SBEM uses to calculate the energy performance of the notional building along with some general details about the building. The document consists of the following sections,
  • General details
  • Building fabric details
  • All systems other than HVAC (DHW, PVC, SES, CHP)
  • HVAC system (repeated for each HVAC system)
  • Rooms in this HVAC system
  • Surface data in this room