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GEM Energy Analytics

Julien Jomaux
Hundreds of paid subscribers

Insights on the energy sector, with an focus on the European electricity markets.

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Substack
PricingFreemiumPublishesWeekly
Issues103Founded4 years agoLast Issue5 days ago
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Latest Issues

Should balancing capacity be exchanged across European borders?

Yes, but maybe not via a proper co-optimization

This is my 100th post. It has been quite a journey, from my wife’s suggestion that I should do more than just read and start writing, to building a Substack with more than 10,000 subscribers....

5 days ago
12
Paid

When capacity tariffs hold back flexibility

Exploring a particular case

Electricity systems often pursue objectives that are each sensible on their own, but that can work against each other once they meet. In this post, I look at one of those conflicts.

14 days ago
11
Paid

The evolution of the spread : 2026 update

Daily spreads have increased in absolute term, but not relative to natural gas

Spreads on the day-ahead market: why it matters?

18 days ago
12
1
Paid

Going further on overlapping aFRR merit orders

A second post on this phenomena, focusing on some consequences

I have recently published a post on overlapping aFRR merit orders and in the present post, I want to go a little deeper on some consequences. This is certainly a more niche sub...

20 days ago
12
Paid

Overlapping aFRR Merit Orders and their impact on CBMP

When a surplus looks like a shortage

In this post, we will discuss an interesting phenomenon that has recently caught my attention: the frequency and relatively high volume of down aFRR activations priced higher than up aFRR activations.

a month ago
5
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  • Julien Jomaux

    Insights on the energy sector with a focus on the European power markets. Made by a passionate engineer, Julien Jomaux

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