Versarien Share Discussion Threads

[superg1] 19/8/2018 08:19

With VRS they tend not to take people on full time in anticipation of a need but build up then feed the need.

EG Martin Kemp was in a consultancy role and is now with VRS. Stephen Hodge a brilliant guy from the Cambridge graphene centre was assisting but now with VRS.

David I understand in the view of some I know that have spoken to him is another very capable guy in the top of his field. So on that basis I suspect at some point he will also become full time.

In each of the above cases VRS get to know the ability and just as important the personality of these guys.

I know from old that an outstanding CV isn't the key ingredient with VRS. The quality of the person and a no BS approach is. Generally CVs are full of BS.

[20pc] 19/8/2018 08:18

Thanks bootie for reminding me of that vid again. That vid was one of many moments while researching vrs that convinced me over the last 18 months that graphene/2d is the place to be. If anyone has not invested 1 hour in watching it is a must view. Graphene is not mentioned once but will probably turn out to be the most disruptive thing ever. Most of the disruption mentioned in the vid will be increased by 2d materials. Ie solar panels, one day all building materials will generate power and cars will become moving solar panels.

[luckyorange] 19/8/2018 06:57

john henry, see that macd has moved above very nicely , looking good for a run now and with the RSI in positive territory too should see an opening up of the bollinger bands, interested in your take on it and any other TA by anyone.

[rockraven] 19/8/2018 00:49

Thanks bootie64 - so he isn't a salaried employee of Versarien - but an outside consultant? From previous references to him on this thread I was under the impression that he had closer ties to Versarien than that. Wasn't he listed as a speaker at some graphene conference (in Germany) where he was presented as a Versarien man?

[bootie64] 18/8/2018 23:09

Raven,

from linkedin

Director
Tutus8 Ltd (Consultancy and Management)

2010 – Present (8 years)United Kingdom

Director of consultancy and management company, serving the advanced business development needs of the SME. Global reach with associates located in EMEA, The America's and Asia Pacific.

Current engagements include providing commercial and management support to Versarien PLC, a leading manufacturer of high quality graphene.

Other engagements include commercial and management consultancy services to companies based in the US, India and China serving the metals, machine tools and e-commerce sectors.

[bootie64] 18/8/2018 23:06

axotyl,


A consortium of european manufacturers are rolling out 350Kw charge points to compete with the Tesla rapid expansion.

When this was raised to Elon Musk his comment was "A mere 350 kW ... what are you referring to, a children's toy?"


I don't know if you saw this link I previously posted? You need to put an hour aside to watch in full so just right for a relaxed Sunday morning

This will not answer all your questions but this is an excellent presentation by Tony Seba and food for thought not just on EV but also energy storage, distribution, self driving, AI etc with some examples of disruptions over the years too.

Tony Seba: Clean Disruption - Energy & Transportation

[alchemy] 18/8/2018 23:03

Yes that's a must for all.

[rockraven] 18/8/2018 22:59

On another BB I see someone asking what is David Kerr's position at Versarien. I too would like to know. What is his job title? I often see his name mentioned. He is sometimes quoted as speaking on behalf of the company, but on the company website I can't find his role described.

[haz101] 18/8/2018 22:30

Ax from what I can gather it prob will be charged from a filling station similar to fuel dispensing at present
Thanks for the tech analysis
Regards Haz

[squire007] 18/8/2018 22:03

Don,t pay that much for a car.... pmsl, quick and clever :-)

[1retirement] 18/8/2018 21:35

Not the cost, the quality of the picture is 4k resolution. The reason I ask is the following link refers:hTTps://curryspcworldcashback.com/gb/en/pages/mp1/terms If you've got your receipt it may be worth contacting them. Proof of purchase = ability to obtain a cash back claim ID. Good luck.

[sandbag] 18/8/2018 21:26

I don't pay that much for a car LOL!

[1retirement] 18/8/2018 21:24

Sandbag, did you happen to buy a 4k TV?

[sandbag] 18/8/2018 21:13

1retirement,

The team leader of the installers told my wife and I that if we recommended them to someone else both he and we would receive £50 as you have mentioned. This is different to the Currys "offer".

Thanks.

[1retirement] 18/8/2018 21:06

Sandbag, Virgin run a referrals scheme which pays out £50 to the 'referer' and a further £50 to the 'refer-ee' (I think I may have made up both words there) by way of bill offset. May be worth keeping the receipt and phoning virgin as well as Currys PC world for clarification.

[dgduncan] 18/8/2018 20:55

axotyl : maybe some info to be had here.

hxxps://www.androidauthority.com/fast-charging-explained-889780/

[sandbag] 18/8/2018 20:51

sg,

Have just returned home and caught up with today's posts. Re your post 27105 about Currys PC World:

My wife was told by a salesman in Currys that if she signed up to Virgin Broadband she would get a £50 Currys voucher. She did this on the 23d of May this year. After some time she told me that she had signed up and had not received the voucher. I went to the store and asked the young lady at the desk why we had not received this voucher. She didn't know so went to a group of salesmen in a huddle in the middle of the store. The older salesman said something to her and she came back to me and said that I would receive the voucher when two payments had been received. As you know I have worked in many countries, many of which speak languages I don't. In that time I have become quite an expert in body language. I know when someone is telling me something but means something else. (As you would understand from your previous life). I could tell that when she spoke to the group there was an initial embarrassment and a general "What do we say here?" I had no choice but to accept this explanation. Upon my return home I spoke to my wife and looked at the receipt from Currys. Unfortunately there was no mention of a voucher. There is still no sign of a voucher and I have paid the two first payments to Virgin Media.

My advice therefore to anyone dealing with Currys PC World is to believe nothing their Sales force say verbally. If you don't have it in writing it doesn't exist.

[spike_1] 18/8/2018 20:38

axotyl - you are right that the amount of energy required to run a car for several hours can't simply be pulled out of a normal home electricity supply in minutes - it is way to much.

What is needed is a static 'battery' (in the garage) that hoards the power when it is most cheaply available from the grid, then blasts it out to the vehicle in seconds/minutes.

Tesla actually have that right now for around £5k.

Cheers - Mike

[1teepee] 18/8/2018 20:25

https://www.zapgo.com/media/3rd video Down

[1teepee] 18/8/2018 20:24

Have you seen the zap and go ev future video

[1teepee] 18/8/2018 20:23

That's why you will go to recharge and discharge at a fueling station, which will be built for purpose.You don't fill your petrol or diesel at home ?

[axotyl] 18/8/2018 20:04

Fast charging

My physics knowledge was shot to pieces years ago, but there's something about fast charging which doesn't make sense - car batteries in 15 mins, power drills in 15 secs (Zap&Go), phones in seconds.

This is just one snippet I've found (historic), but can anyone direct me to an up-to-date summary of the feasibility of fast charging?

Here's one, from a US point of view, which drifts into battery swapping, but I was looking for something with a bit more meat:

"The basic equation governing the charging of batteries is W = V * A, or to put it into words, Watts equals Volts times Amps. Now, power consumption is usually measured in kilowatt hours and this would be the number of kilowatts (a kilowatt is 1000 watts) consumed by a device, in the case of EV charging that would be the amount of power going into the batteries, in a one hour period.

Let’s consider a simple example, say an EV conversion that has a 120V pack and a range of around 30 miles. A rule of thumb would suggest that a car such as this gets about 5 miles of range for each kilowatt hour of energy taken from the battery. An EV like this would need to store 6KWHrs of power in the batteries if we assume the system is 100% efficient.

Now, to charge this battery we would normally apply about 1.2Kw from a 110V receptacle for about 5 hours. If we want to charge this battery in 2 seconds we would need to put that same 6KWHrs into the battery in 2 seconds which would require us to produce power at a rate of 6 * 3600/2 (six kilowatt hours times 3600 seconds in an our divided by 2 for 2 second duration) or 10,800 KW. Note this value is in KW not KWHrs since it represents an amount of power delivered in a 2 second burst.

Going back to our formulae we will first need to convert our kilowatt value to watts so we have 10,800 * 1000 = 10,800,000 watts needed from the source. If we wanted to recharge this from 110V domestic service we would need to pull 10,800,000/110 = 96,000 amps.

Most houses are set up with a 200amp supply so we already have a bit problem. Even worse, we can’t pull 200 amps from a single outlet. A typical outlet is fused at 15 amps so we can pull about 1.6KW. The best case scenario would be a 20 amp circuit driven by a 120V supply and in this case we can pull 20 * 120 = 2400 or 2.4KW. In reality you would pull less than 20A and the charging circuit is not 100% efficient so you would be lucky to add 2KW to the batteries

Most houses also have 220V service which is used for high power devices. When GM installed chargers for the EV1 they used a 50amp 220V circuit that could pump over 6KW into the batteries. Some industrial sites are even set up with 440V 3 phase service. Chrysler used this for their EPIC Minivan and could charge at a rate of about one mile per minute.

So, it looks like even if we can technically charge the batteries in 2 seconds it isn’t feasible using the supply in our homes; so why am I still so hot on fast charging rather than battery swapping? One of the biggest reasons is that we don’t need to charge batteries in 2 seconds, as useful as that would be. We don’t always need to charge the batteries to full either for that matter."

[1teepee] 18/8/2018 19:42

Oh it's ok it changed to the right name now