Member Info for bonxie

"§ Q1 2022 production of 224 mtV was 24 per cent lower than Q1 2021 of 293 mtV and 15 per cent lower than Q4 2021 (Q4 2021 262 mtV), impacted by the following :

- The refractory condition of Kiln 1, reducing online time, negatively affecting recoveries. A 5-day temporary refractory repair on Kiln 1 was conducted in March 2022, which will last until Kiln 3 is online. Kiln 1 was reaching the end of its useful life, and commissioning of Kiln 3 has commenced, and is expected to be online in May 2022."

So it doesn't explicitly state that Kiln 1 is coming offline, but it is implied.

Does anyone know how the BMN kilns are powered? I'm assuming gas, am I right?

As somebody said before, exquisitely complicated dealings.

Bilboburgler, isn't the burn velocity of H2 5x that of CH4? I was under the impression this led to more forceful explosions. In fact I went to a talk by an HSE staff who showed a video in which both were mixed with air and the H2 exploded whereas the CH4 only resulted in a fireball.

TuftedDuck, what do the labels FPN, MEL and BOA mean on your friend's website? Drax 5 and 6 are currently showing MEL of 645MW - is that just the nominal capacity?

https://www.ge.com/gas-power/products/gas-turbines/6b

bilboburgler, an open cycle gas turbine is closer to 45% efficiency, and becomes >55% if you add a steam cycle. I'm not sure if pure H2 turbines are available off-the-shelf yet, but one option is to blend H2 with natural gas. Burning H2 alone can generate problems with NOx due to the high temperature.

https://blog.softinway.com/hydrogen-in-combined-cycles/

Actually, just neither.

Ethically they should either do neither or both.

Thanks dougerboy. I'm guessing stationary storage packs will be closer to the latter case. Are these figures from a publicly available source?

ukmoe,
While the recyclability of vanadium is definitely a pro, from a strictly cost perspective there are a couple of reasons why accounting for this will not have a radical effect.
1) The practice of discounting future revenue in the levelised cost comparison: if we use a discount rate of 10% then the value of the electrolyte after 20 years is only valued at 15%. Even at a more renewables-friendly rate of 4%, it's still only valued at 50%. Leasing is supposed to get around this, but I'll wait and see what rate makes this work from the electrolyte owner's side.

2) Say the electrolyte makes up 60% of the cost of a 4h duration VRFB (just some numbers I have in front of me), this is only the DC module. Adding all site prep, balance of system, labour etc to get a turnkey system is likely to near double the CAPEX. Hence the electrolyte is now 30% of the CAPEX, and from 1), this becomes at best 15% recovery.

All this said, I expect VRFBs to beat Li-ion (NMC) economics in maximising self consumption of PV at a site where it's sunny enough to obtain a PV surplus most days. This is not a small niche!

Above is for discussion and is not given as investment advice.

While on the subject, does anyone on here know if there are currently charges for disposing of Li-ion batteries, and if so do they numbers and a source?

Thanks for all your hard work batting away the obvious derampers Pdub, it's much appreciated.

I agree that PIs publicly venting their frustration is not the way to go. However someone needs to be holding the MGMT to account. I'm not on telegram, so don't know if this has been discussed already, but would it not be a good idea to form a shareholder's association in order to present a unified (wishful thinking perhaps) front to the MGMT, in the same way that a large institutional investor would be able to do?

*VRFB manufacturers

LIION, Mikhail and the VRFB are probably sensibly concentrating on PV based systems, as these involve more frequent cycling which gives VRFBs an advantage over LIBs.

beginerman, I believe the vanadium containing cathode goes to a higher voltage when charged, which increases the energy and power density of the battery overall.

I've seen those dragon fruit farms in Vietnam - shocking light pollution, and the fruit isn't even that nice IMHO.

The bear case for me is potential political interference, so I'll feel more relaxed when there is a JSE listing allowing SA interests to get a piece of the action.

@ Alfa. Yep that was a very entertaining response to a pretty unprofessional use of the chat feature from the VanadiumCorp rep.

Antelope, the large scale projects (at least in the UK ) have mostly been designed to participate in the frequency regulation market, as this was the most lucrative revenue stream in the past five years. For this application you only need a short duration, but a high efficiency, so lithium ion is ideal. VRFB is better suited to true energy management, but at the moment this isn't a very profitable market in the UK.