WHAT’S NEEDED

What we need to produce a VolDEC

In order to produce a VolDEC certificate for a particular building, you’ll need to provide us with:

  • Building address and postcodeDSC_0080
  • Building type
  • Floor area
  • Energy data by fuel type
  • Energy data by user (landlord or tenant)
  • Data year/reporting period
  • Approximate hours the building is occupied

VolDECs for office buildings

Step 1 – Select your building type

Select which of the four office types matches your building:

building type

Step 2 – Select your building scenario

If your building is an office, for which you’d like to develop separate landlord and tenant VolDECs, we also need to know which one of the seven building scenarios below applies. Please select the nearest match from below:

S1 – Naturally ventilated, all Landlord

  • Landlord central gas boiler (Space Heating & 100% DHW)
  • Landlord 100% Electric DHW & catering
  • Central restaurant included in S1

S2 – Air Conditioned, Tenant Split Units

  • Tenant Local split units (Heating & cooling)
  • Tenant 90% Electric DHW & catering
  • No central restaurant in S2
  • No central boiler in S2
  • Space heating & DHW based on adjusted gas benchmark

S2a – Air Conditioned, Tenant Split Units, Tempered air

  • Tenant Local split units (Heating & cooling)
  • Tenant 90% Electric DHW & catering
  • No central restaurant in S2
  • No central boiler in S2
  • Central AHU supplying background tempered air
  • Space heating based on adjusted gas benchmark

S3 – Air Conditioned, Tenant cooling

  • Landlord central gas boiler (Space Heating & 50% DHW)
  • Tenant Local Air Conditioning (Cooling Only)
  • Tenant 90% Electric DHW & catering
  • No central restaurant in S3

S3a – Air Conditioned, Tenant cooling & Tempered Air

  • Landlord central gas boiler (Space Heating & 50% DHW)
  • Tenant Local Air Conditioning (Cooling Only)
  • Central AHU provides background tempered air
  • Tenant 90% Electric catering
  • Tenant 50% DHW as electric
  • No central restaurant in S3

S4 – Air Conditioned, Tenant FCU’s

  • Landlord central gas boiler (Space Heating & 50% DHW)
  • Landlord central chiller & central fans
  • Tenant FCU’s
  • Tenant 50% Electric DHW & catering
  • Central restaurant included in S4

S5 – Air Conditioned, all landlord

  • Landlord central gas boiler (Space Heating & 100% DHW)
  • Landlord central chiller
  • Landlord FCU’s
  • Landlord 100% Electric DHW & catering
  • Central restaurant included in S5

Need some help deciding?

 VolDEC Decision Tree

Step 3 – Complete our simple data collection sheet

Please contact us to discuss your requirements.

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