The Meeting 2 of the Dialogue Group on Heat Recovery was held on Tuesday 22 June 2021.
You can find attached to this post the agenda and presentation file of this meeting (and soon the minutes will be published as well).
This meeting presented and discussed the calculation methodology developed by streamSAVE for energy savings from Heat Recovery. Key points highlighted in the discussions:
– The amending Energy Efficiency Directive (EED) adopted in 2018 makes that only small final energy savings from district heating can be reported to EED Article 7. However, the use of heat recovery for district heating still provides large primary energy savings in the context of EED Article 3 (and reductions in GHG emissions).
– The scope of final energy consumption to consider in the savings calculations depend on the case of application: heat recovered directly fed back in the same process; heat recovered used on-site but for another end-use; heat recovered used to supply other sites via district heating.
– In the case of heat recovered for another end-use onsite, the difference in the ancillary electricity consumption (e.g., circulation pumps) between the baseline and “heat recovery” cases are assumed to be negligible, allowing a simplified calculation.
– Whereas in the case of heat recovered directly fed back to the same process, the ancillary consumption of the heat recovery system is additional (compared to the baseline case), and should therefore be deducted from the gains of the heat recovered.
– In the case of heat recovered to supply district heating, final energy savings may occur when the supply with heat recovery enables to connect new end-users/buildings, by comparing with the efficiency of the replaced/baseline heating system that would have been used in the absence of connection to district heating.
If you are interested in joining this Dialogue Group, contact us at firstname.lastname@example.org