Lion Hirth Profile picture
Sep 27 16 tweets 4 min read
What do we know about the Nord Stream leaks and what does it imply?

Information is still coming in and there is a lot we don’t know.

I think this is a pretty big deal, and I am quite concerned. Here is my preliminary assessment.
1. What has happened?

Within the past 24 hours, two leaks on the Nord Stream 1 pipeline were detected and one leak on Nord Stream 2. Neither pipeline was currently used to ship gas, but both were pressurized with natural gas and saw pressure drop.
Note the timing: today, the new pipeline connecting Norway to Poland (BalticPipe) was inaugurated.

The location of the leaks is East of the Danish island Bornholm. This is the location of the three leaks:
Judging from this map, this is at a depth of a bit more than 50m.
Impressive video footage of the leak
2. What’s the reason of the damage?

A leak of a deep sea pipeline is very rare. There hasn’t been a major earthquake or a comparable event. It is almost impossible to conceive three leaks at three locations within 24 hours to be a coincident. It very much looks like sabotage.
How could a sabotage be implemented? Here is a detailed thread by @jupawlak:
3. What are the short-impacts on supply?

The immediate impact is zero. NS 2 was never in operation and Russia stopped delivering gas through NS 1 weeks ago.

While it was unlikely that Russia would deliver any gas through the pipelines this winter, this possibility is now gone.
4. What’s the market response?

Surprisingly small. TTF Cal-23 trades 10% higher than yesterday, but changes of this magnitude have been quite usual in the past weeks.
5. Who was is, and why?

That’s the big one. Damaging two pipelines at the bottom of the sea is a big deal, so a state actor is likely. Hard to imagine a NATO member doing this, even those most critical about the pipeline projects.
Hard to imagine Ukraine doing this, for many reasons, not least the impact that would have on its support by European countries. That leaves us with Russia.
6. What does is imply?

If that’s true, it’s pretty concerning. At the very least it means Russia is burning the bridges: it is sending the clearest possible signal it won’t deliver gas any time soon.
More concerning even, it could be a signal that our energy infrastructure is vulnerable. Yes, these are Gazprom-owned pipelines in international waters that were out of operation. But ...
... a similar attack on a pipeline from Norway to the UK, Germany or Poland would have huge impacts of European gas supply. Or a gas field. Or a LNG terminal. Or smth.

It is a stark reminder of the vulnerability of our energy infrastructure.
Add: more assessments coming in that two explosions happened. Could be that one damaged both tubes of NS 1 and the other one pipe of NS 2 (both lines have two pipes each)

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More from @LionHirth

Sep 26
As time passes, the side effects of the Iberian electricity market intervention become more evident.

The policy is a fuel subsidy of gas and coal fired plants - but not gas-fired CHP plants. Guess what: Those are used much less.

Problem: those are much more efficient
Btw, to clarify some confusion in the article and elsewhere:

CHP = combined heat and power, i.e. excess heat is used for industrial or spacing heating purposes. Same as "cogeneration". Can be a combined cycle plant or a gas turbine.
Read 4 tweets
Sep 9
Today, EU energy ministers meet in Brussels. Some have suggested to cap power and/gas prices.

A friendly reminder of what will happen:

Demand will exceed supply. Any price cap must come along with hard curtailment policies that cut demand.
And I don't mean targets and pledges. I mean cutting of major industries.

If that comes too late, we will be physically running out of gas like sooner or later.
If you'd like to do that anyway, start with rationing.

If you reduce consumption by the same amount that you need to do anyway, prices will fall automatically, without the need to introduce a cap.
Read 4 tweets
Sep 7
It is easy to confuse economic models that explain price formation on power markets (the "Merit Order Model" aka demand & supply) with the auction design on a given power exchange.

Let me explain 👇
The "supply stack" or "Merit Order" model is an economic model that explains prices being formed in competitive power markets. With supply being inelastic, prices are simply determined by marginal costs.

neon.energy/marginal-prici…
Independently, power exchanges that offer market platforms for short-term trading, such as EPEX SPOT, Nord Pool, or EXAA have implemented an auction design that resembles those principles (otherwise market parties wouldn't use them).
Read 7 tweets
Sep 6
As a German energy professional, for 15yrs I've explained people from the rest of the world our stance on nuclear, often defending it.

Today is the day when I will stop.

I don't know how to explain the decision to effectively close even the remaining reactors in these times.
Reading some comments below I feel the need to clarify:

I've consistently argued that nuclear is not a great tech, it's expensive and unfit for the flex needs of future power system. No change in mind, actually.

Here is the main argument:
But I have *also* consistently argued that we need them now. That's no contradiction.

background.tagesspiegel.de/energie-klima/…
Read 4 tweets
Sep 5
The European Commission has proposed it and Germany has announced it:

What is the "revenue cap" on electricity generators and how does it work?
The core idea is to specify for each technology a revenue (€/MWh) that plants are allowed to keep. The rest they must surrender.

The payment is calculated as the difference btw market price and rev cap.

That money then is for something else, e.g. cash payments to consumers.
The instrument essentially keeps the power market intact. That's a huge advantage over many proposals.

- The spot price is not depressed
- Plant dispatch is not distorted
- Cross-border trade is not affected
- Gas consumption is not inflated
- Energy savings incentives remain
Read 7 tweets
Sep 4
Breaking: Scholz announces revenue cap for German power generators. European or national. Consistent with point b) of DG ENER proposal.
Expected revenues €60bn. Distribution through reduced grid fees and something else that wasn't entirely clear to me.


Start 10:00
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