Fourth webinar – EPB standards hourly vs monthly methods

(Updated: May 26, 2020)

The 4th webinar was organized on Tuesday 26th May 2020 (12h00-13h30) on "EPB standards, hourly versus monthly methods".

At this 4th webinar the main possibilities and limitations of the monthly versus the hourly calculation method were introduced and demonstrated..

In particular within Europe, more and more countries are working on the concrete implementation of the set of EPB standards for the assessment of the energy performance of buildings.

The EPB standards offer specific choices to tailor the methodology to the national or regional situation. This was the subject of the second webinar. One of the key decisions in this process is whether or not to implement a calculation method with hourly calculation intervals instead of monthly. The set of EPB standards facilitates both choices.

The intention of this webinar was to show the main possibilities and limitations of both approaches, as described in the EPB standards.

Recording of the webinar (90 minutes):




  • 0h00General introduction (the webinar series, this webinar),
    by Giulia LEGHISSA, Scientific communication at Eurac Research (BuildUp Editorial Board)

  • 0h02Introduction and overview of current EU practices,
    by Jaap HOGELING, Chairperson CEN/TC 371, Energy Performance of Buildings project group, European Committee for Standardization (CEN)

  • 0h23 - Energy need and indoor temperatures calculation: hourly or monthly?
    by Dick VAN DIJK, EPB expert, EPB Center

  • 0h47 - Hourly or monthly? What about technical systems?
    by Laurent SOCAL, independent EPB expert
    1h12 - Q&A, by the moderator

  • 1h30 - Closing

Not all the questions from the audience could be answered within the given time frame of the webinar. If your question was not answered or if you have other questions, please don't hesitate to contact the EPB Center experts!

Download pdf  of the presentations


This webinar on BUILD UP website

Series of webinars on the EPB standards

A series of webinars on the EPB standards was jointly organized throughout 2020 and early 2021 by BUILD UP in cooperation with EPB Center’s experts under the scope of Service Contract ENER/C3/2017-437/SI2-785.185 “Support the dissemination and roll-out of the set of Energy Performance of Buildings standards developed under EC Mandate M/480” (duration September 2018 - September 2021).

Overview of the whole series