The WLCG study group looking at the evolution/re-definition of the Flat Budget model met on Nov 28. Dave Britton presented a summary of the discussion at the WLCG Overview Board on Dec 8th. The Overview Board agreed with the proposed next steps: 

• Better estimate what "Flat Budget" can buy every year => collect from all T1s (or regions with a T1) the annual variation for each hardware type. E.g. in UK the price of CPUs in 2022 is XXX% less than in 2021, the proce of disk in 2022 is YYY% less than in 2021 (see slides 3 and 4). The countries that can provide also an estimate including cost of energy should do so
• Define a "WLCG currency" that allows to compare the costs of CPU, disk and tape. For example, in the UK, 1TB of disk = 6HS06 of CPU = 3TB of tape (see slide 7)

In early 2023 we will have a second meeting to discuss how we will collect those numbers and we will then start the process. 

Today we have the following people in the group. We need a contact from DE and NDGF for the next step  

Dave Mason (FNAL)

Andre Melo (Vanderbilt)

Daniele Cesini (CNAF)

Bernd Panzer (CERN) 

Alessandro Di Girolamo (CERN) 

Shawn McKee (Michigan)

David Britton (Glasgow) 

Alastair Dewhurst (RAL) 

Christopher Hollowell (BNL)

Shigeki Misawa (BNL)

Zaytsev, Alexandr (BNL)

Pepe Flix (PIC)

Reda Tafirout (TRIUMF)

James Letts (UCSD)

Benoit Delaunay (IN2P3)

Magchiel Bijsterbosch (NLT1)