STOP PRESS!! New PartL/SBEM calculation engine release on 9th December 2011

"on behalf of DCLG and response to Landmark's introduction of a new verification system for Energy Assessors on the National Register...   ... we will be releasing an updated version of iSBEM/SBEM/EPCgen/BRUKL to be named v4.1.d on 9th December 2011"

The new calculation modules have been compiled in such a way to be compatible with the existing software with very little change so we should be well on schedule to release a service pack incorporating this update in time for the 6th January 2012 when the current verification system (using and activation codes) will be deprecated and a new verification system will become the only route to generate XML files. During the changeover period, both old and new verification systems will be operational.

The list of changes we have been informed about are as follows:

1.    Modifying the method by which connection to Landmark for verification of energy assessors before the generation of XML files.

2.    As a consequence of the above point, activation codes will no longer be needed, i.e., energy assessors will no longer need to obtain activation codes from to input them into the software in order to be able to generate XML files.

3.    Updates to the Activity database.

4.    Correction of the alpha value and building conductance reported in the sim O/P files when the building includes non-planar rooflights.

5.    Correction of the use of the multiplier so that the input of windows (or doors) with a multiplier >1 causes the lengths of the thermal bridge junctions (rather than the areas) to be the same as if the individual windows (or doors) were entered as separate objects instead of using the multiplier.

6.    Modifying SBEM so that the alpha value for the U-values of the reference building (and notional buildings that use alpha values rather than psi values) is applied in a way that allows the calculated heat transfer through thermal bridges to be reported separately in the sim files from the heat transfer through the fabric alone.

7.    Modifying the reported energy consumption by end use to include the energy consumed (for heating, cooling, and HW) and displaced by CCHP, if applicable.

8.    Enhancements to the iSBEM interface, e.g.,
a.    If the default heating or cooling efficiency default radio button is not selected, then the fields relating to the ECA and installation after 1998 become inactive in the heating, cooling, and HW sub-tabs.
b.    Adding a drop-down menu to allow selection of fuel type for cooling generator for the “Heating and mechanical cooling” default HVAC system.

9.    Enhancements to the BRUKL modules, e.g.,
a.    Reporting the hot water storage losses in kWh/litres of storage in the BRUKL O/P document if the monthly losses, in MJ, are input manually by the user.
b.    Reporting the lighting wattage for each zone rounded to the nearest 10 Watts instead of 50 Watts.

Please note that at this stage we have not been made aware of the changes to the verification system further than what is being reported here. For information about this or clarification on any of the items mentioned above, you must contact your scheme provider.