00:30:43	Kate Hendle:	Welcome to the DCF Tech Talk! Please put any questions you have for the speakers here in the chat and keep yourself on mute if you are not speaking.
00:32:54	Archna Haylock:	you can find out more about the Data Center Facility Project Community: https://www.opencompute.org/projects/data-center-facility
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00:34:43	Archna Haylock:	Tech Talk Series are recorded and all recordings/slides/chat info can be found here: https://www.opencompute.org/events/past-events
00:50:47	Gaby Mindreci m-i2i.com:	On the public pool slide, how much power is used by the pumps to transfer all the heat to the pool?
00:52:15	Gaby Mindreci m-i2i.com:	Is the power used by the pumps taken into account to calculate the PUE of the data center?
00:53:00	Madhu Iyengar:	Q. When do the 2 sides come together well?  The heat creation side and the heat reuse side?  What attributes of the scenario make this work well?
00:53:52	Zhiyong:	Is there a general estimation of ROI for these heat reuse case?
00:54:19	Joshua Au:	I wonder if this changes the way the operator puts up its ISO14000 documentation and assessment
00:54:37	Madhu Iyengar:	Q. How do you reconcile Air Side Economizer data centers and heat reuse?  Do you see proliferation of Heat Reuse linked closely to expansion of liquid cooled IT use?
00:54:41	Gaby Mindreci m-i2i.com:	What would be the estimated cost of the complete system in the pool slide? And its carbon footprint?
00:57:58	Bill-OCP:	I question whether a swimming pool is a practical example.   I looked into this at my home (35,000 gal pool, heat source is the home AC unit).  The pool would only be able to accept heat for ~4 hrs/day before the pool becomes uncomfortable.   I like the idea but it wasn't practical.
00:58:14	Gaby Mindreci m-i2i.com:	Where is the redundancy built in for the pool slide example? What happens if the line breaks at the first heat exchanger?
00:58:47	Gaby Mindreci m-i2i.com:	Great job Cosimo!
00:59:07	Joshua Au:	great presentation! Thanks Cosimo!
00:59:21	Bill-OCP:	Thank you Cosimo!
01:17:27	Bill Carter (OCP):	In some of your examples of green hydrogen uses, an alternative is to use the green energy directly (ex: an EV vehicle versus a hydrogen powered vehicle).     Are there advantages of using green hydrogen versus directly using the renewable electricity source?   Is there an efficiency ratio to compare green hydrogen versus green energy?
01:18:09	Madhu Iyengar:	[Q] We see that we need to consume both water and renewable energy to create the Hydrogen.  Has there been an assessment comparing the direct use of renewable energy to power the DC and water to cooling (cooling towers) vs creating Hydrogen Fuel to power data centers?  Is Hydrogen fuel for data centers a net win for decarbonization?
01:18:18	Arthur Falisse _ FlexiDAO:	How are you planning to officialise the authenticity of this "green" hydrogen?
01:18:30	Gaby Mindreci m-i2i.com:	Great presentation!
01:20:13	Gaby Mindreci m-i2i.com:	Total cost of energy storage via H2 is much lower than electrolytic cells of any kind. Also duration of storage using H2 is much longer than any other means of storage.
01:21:40	Gaby Mindreci m-i2i.com:	Green H2 classification methods are already clearly defined.
01:22:20	Gaby Mindreci m-i2i.com:	irena.org is a great resource
01:22:32	Bill Carter (OCP):	Thanks Gaby
01:24:49	Gaby Mindreci m-i2i.com:	only for the curious:
01:25:00	Gaby Mindreci m-i2i.com:	hyper-split.com
01:32:05	Graham Hinton:	Do DataCentres include QSFP standby mode in fibre chassis when measuring PUE - similar to a TV in standby?
01:34:08	Bill Carter (OCP):	Why doesn’t the journey to sustainability include carbon sequester (e.g. photosynthesis, forests)?
01:34:47	Madhu Iyengar:	[Q] What is you feedback to us on how the OCP DCF Track help the data center industry with respect to Sustainability?  What can be focus on to further this area?
01:36:01	Joshua Au:	I wonder if there are efforts to reconcile or make ISO14000 more relevant and useful to data centres
01:36:57	Bill Carter (OCP):	@graham Hilton - from a practical standpoint, the DC operators track energy consumption from the grid and the UPS output (white space consumption).   There are literally hundreds of features like QSFP standby that reduce the UPS load and factor into the PUE equation.
01:42:08	Mark Dansie (OCP Ready Program Lead):	[Q] if we were to consider developing the assessment of the sustainability of an OCP Ready data center, what would be a good starting point for our sub-project?
01:44:14	Joshua Au:	Should we look at OSDA (open standard for Datacentre Availability) as a viable metric? Or is it more meaningful to work with the likes of TIA and UTI to advocate for a change in how power sources are considered for resiliency
01:46:14	Mark Dansie (OCP Ready Program Lead):	Thanks Rob, great presentation!
01:46:45	Arthur Falisse_FlexiDAO:	Thank you for the Prez Rob!
01:56:49	Joshua Au:	will we see quantum computing being treated as a work stream under the OCP, with facilities side guidelines for effective power and energy efficiencies in mind
01:58:29	Gaby Mindreci m-i2i.com:	What is the cost of HVO fuel compared to Diesel?… and if it is more expensive, why is that?
02:01:45	leononeill-rockscar:	@gerard, I have been reading a white paper recently that essentially states that DC’s should use load banks instead and completely eliminate the use of generators.
02:01:56	leononeill-rockscar:	Do you have an opinion on this?
02:06:41	Madhu Iyengar:	[Q] A 1965 kW diesel generator example was presented (and also 1 GW and 450 diesel generators).  What is the comparison between CO2 generated with Diesel vs HVO normalized to the same load and same time of run?
02:07:20	Graham Hinton:	Can HVO be used in most diesel engined vehicles without modifying anything?
02:13:39	Nima Ghadi:	Any long term impact on generator engine?
02:16:59	Gerard.Thibault:	Can HVO be used in most diesel engined vehicles without modifying anything? - Yes, to my knowledge all diesels will work with HVO.  Its is a paraffinic fuel to EN 15940.  For cars, AUDI/BMW and most OEMs also allow it.
02:18:24	Gerard.Thibault:	Any long term impact on generator engine? - Nima, to my knowledge, there is no long term impact.  MTU have requested a look at the injectors after 500 hrs running.  The Nordic countries use the fuel every day for cars.  We have been using for almost 1 year and no observed issues.
02:20:11	Gerard.Thibault:	[Q] A 1965 kW diesel generator example was presented (and also 1 GW and 450 diesel generators).  What is the comparison between CO2 generated with Diesel vs HVO normalized to the same load and same time of run? - Madhu, effectively the fuel is still carbon based and in round terms, the actual burning creates a similar CO2 level BUT the offset to a 90% reduction comes from the growth cycle.
02:24:44	Gerard.Thibault:	@gerard, I have been reading a white paper recently that essentially states that DC’s should use load banks instead and completely eliminate the use of generators. Do you have an opinion on this? Leon, I am not sure what you mean about using load banks to omit the need for generators?  I do feel that we should move away from generators, but it is very difficult to sell a DC without a generator.  The change needs to be led by the Customer or IT platform user.  They should be encouraged to move work flow within UPS autonomy instead.  In reality the grid in most areas (certainly in the UK) is very stable and we have figures of 1 interruption (of 15 mins or longer) in 57 years!  So its a lot of capital cost and fuel used for little reason.  I would be happy to work with Customers to eliminate the need for sure
02:25:56	leononeill-rockscar:	@gerard, when the wp is ready for release, I shall share it with you
02:27:14	Gerard.Thibault:	What is the cost of HVO fuel compared to Diesel?… and if it is more expensive, why is that? - Gaby - Yes HVO is currently 15 to 20% more expensive - I guess its low volume cost of production - in theory its the cost of collecting the oils, re-processing and the hydrogen to treat it and raise the cetane number - in reality I suspect it should be cheaper than drilling for oil....but I am not deeply involved in the commercial part of the product.  We feel tha the 15 to 20% uplift is a good value in return for the CO2 reduction.
02:38:25	Johanna Jarvinen:	They are included in our GHG reporting tools
02:38:51	Johanna Jarvinen:	https://www.oneclicklca.com/ghg-reporting/
02:39:01	Graham Hinton:	Johanna, is one of the metrics that gets measured the type of compute……as in YouTube….or Gaming….and how productive this is compared to healthcare compute?
02:41:10	Johanna Jarvinen:	I am not sure what the compute would mean in this case? How much CO2e per occupant?
02:49:25	Graham Hinton:	Has a OCP ready study been performed for schools and education buildings?   I am thinking about doorway heights, and floor loads?
02:50:20	Mark Dansie (OCP Ready Program Lead):	[Q] Johanna, for colocation data centers if we wanted to understand what a good benchmark figure would be for Scope 3 emissions per square metre of white space, starting with just the shell and core of the building. How could we go about this using OneClick LCA?
02:52:05	Graham Hinton:	Would a modular, transport container be a good way to utilise second life kit for education that could sit next to the existing building?
02:55:09	Graham Hinton:	Could the greenhouse owners be given grants to house OCP DC as an incentive
02:55:24	Archna Haylock:	OCP Modular Data Center Project: https://www.opencompute.org/projects/modular-data-center
03:04:48	Cosimo Pecchioli:	Do you plan do produce energy on premises as well? (like fuel cells?)
03:05:24	Vadim Heyfitch:	What is the current view of tidal energy as another type of renewable?
03:12:51	Graham Hinton:	I am very encouraged by all the speakers for a more green future……great presentation !
03:16:48	Bret’s iPhone:	Is it helpful, or even necessary, to form consumer consortiums as a means of leverage with energy producers to incent them to offer the renewable energy for consumption?
03:20:03	Anna Timme:	when you talked about driving additionality to the grid, what did you mean by the needs to "recognize additionality is a spectrum"?
03:21:29	Zhiyong:	when you use battery to replace generator, how to ensure power outage doesn't occur at the charging stage?
03:24:20	Vadim Heyfitch:	Will the nuclear power industry in the US see a light of day?
03:27:32	leononeill-rockscar:	As a general question to the OCP team - what is the business case for investment for an independent DC operator to become OCP ready? What is the size of the market for hosting OCP?
03:32:07	John Nguyen:	thank you so much for the talks today!
03:32:26	Alexander Rakow:	Thank you Archna!  Thank you to all the terrific presenters