Ed Wootten 🇨🇦

Living in Beautiful British Columbia. Working in the investment industry since 1995. Love nature. Opinions are my own.

[Ed Wootten 🇨🇦 @EdWootten]

@jkenney @EvanLSolomon What a joke.

[Ed Wootten 🇨🇦 @EdWootten]

Paris is clever.

[Yohan @yohaniddawela]

The French hate air conditioning.

So Paris built a 120-kilometre machine under its streets for producing cold.

It’s called Fraîcheur de Paris, and it does for summer heat what district heating did for winter: centralise the problem.

Instead of every museum, office, hotel, hospital and shop bolting its own cooling plant onto the building, Paris moves cold through pipes.

The network sends water chilled to 2 to 4°C through buried supply lines. The water enters a connected building, absorbs heat through an exchange station, then returns at 12 to 14°C to be cooled again.

It essentially functions with two pipes. One carries the cold out, the other carries heat back.

The production plants cool the circuit from 12°C to 4°C. Some sites use the Seine as a heat sink. In colder periods, the system can use the river’s own temperature for free cooling, which means the machines work less and the electricity demand drops. The Seine water doesn’t become the building water. It stays separate, passing temperature across heat exchangers.

The scale is pretty strange when you see it written down though.

It's got 15 production sites, 4 storage sites, 120 km of underground network with 924 subscribers. This has resulted in 7 million square metres cooled, and 493 GWh of cooling sold.

A cold utility running beneath one of the densest cities in Europe.

The Forum des Halles has been cooled this way since 1979. The Louvre since 1986. Galeries Lafayette, Opéra Garnier, Hôtel de Ville, Station F, La Samaritaine and the National Assembly all sit on the same idea. Tourists stand in the Louvre looking at paintings while a municipal cold loop does part of the dull work below ground.

The boring part is the breakthrough.

Cold can be stored at night in chilled water or ice, then used during daytime peaks. The network is monitored from a control room with more than 125,000 control points. A delivery station inside a building takes 5 to 7 times less space than a standalone cooling installation and avoids the roof and façade clutter that turns cities into compressor farms.

That matters because conventional air conditioning solves heat by moving it somewhere nearby. In a dense city, thousands of private machines mean thousands of outdoor units rejecting heat into streets, courtyards and roofs, plus refrigerants, noise, vibration and maintenance spread across every building.

Paris’s public cooling network has a stated coefficient of performance of 4, against 3 for a wet standalone system and 2 for a dry standalone system. Against an equivalent set of autonomous installations, Fraîcheur de Paris says the network gives 100% higher energy efficiency, 35% less electricity use, 90% fewer refrigerant-fluid emissions and 50% lower CO2 emissions.

The climate backdrop is the real reason this exists.

Paris ran a full crisis exercise called “Paris at 50°C” in 2023. Météo-France’s 2050 reference trajectory for France points to heatwave days becoming five times more frequent, hot nights rising sharply in urban centres, and some local extremes around 48°C becoming possible.

The city signed a 20-year concession in 2022 with Fraîcheur de Paris, owned 85% by ENGIE and 15% by RATP. The contract is worth a projected €2.4 billion. The plan is to extend the network by 158 km by 2042, add 20 production plants and 10 storage sites, and reach more than 3,000 subscribers, including hospitals, nurseries, schools and care homes.

This is basically the infrastructure version of admitting that summer is becoming a public systems problem...

[Ed Wootten 🇨🇦 @EdWootten]

@NomadCarnivore @Divergent7651 Excellent research!

[Ed Wootten 🇨🇦 @EdWootten]

@mario4thenorth @tobi They are not comparable jobs / responsibilities. Are you a simpleton? The CPP is a multi-generational pension fund that is designed to withstand many types of market conditions (for example the S&P was flat from around 1969 to 1982).

[Ed Wootten 🇨🇦 @EdWootten]

@jameskwantes These people are like school yard bullies who later run away when they punched hard in the face.

[Return on Cap @returnoncap]

This isn’t your grandpas $BRK.B

[Ed Wootten 🇨🇦 @EdWootten]

@MaximeBernier @BenRabidoux These activities are vile and anti- Canadian. Expunge.

[Ed Wootten 🇨🇦 @EdWootten]

@CP24 @BenRabidoux Fuc#ers.

[Ed Wootten 🇨🇦 @EdWootten]

@hmacbe @chettan_guevara How long do you think it will take for these companies to get added to SPY? 😬

[Ed Wootten 🇨🇦 @EdWootten]

@jkenney Have they gotten rid of the pink hair as well?!

[Ed Wootten 🇨🇦 @EdWootten]

@jkenney 👍👍

[Ed Wootten 🇨🇦 @EdWootten]

@globepolitics @erinotoole 👍👍

[Ed Wootten 🇨🇦 @EdWootten]

@lucyhargreaves4 It’s surprising that Canadian bank stocks are at ATHs.

[Robert A. Pape @ProfessorPape]

Everyone should read what Senior Vice President of Exxon Neil Chapman says about the oil price surge coming in 2-3 weeks

The next wave of the energy shock is approaching fast

[Ed Wootten 🇨🇦 @EdWootten]

@edodreaming Correct me if I’m wrong but the US will be struggling to make 5 nm chips but 2 or 3 nm chips are way harder to make.

[Ed Wootten 🇨🇦 @EdWootten]

He should not be normalizing the destruction of Taiwan. It’s irresponsible and the chances that state of the art chips will be made in the US are remote.

[Ξdo @edodreaming]

In other words China taking Taiwan is inevitable so we have to build fabs in the US or lose the AI race

[Ed Wootten 🇨🇦 @EdWootten]

@BrownMarubozu I’m glad they are aren’t being complacent!!

[Tommy @_TommyMason]

Left, Ferrari Luce $645k
Right, Nissan Leaf $35k

[Ed Wootten 🇨🇦 @EdWootten]

@BenRabidoux It could be worse - in Minnesota they handed out $100s of millions in face claims!

[Ed Wootten 🇨🇦 @EdWootten]

@OxfordAnalytics Those are just his US listed stocks.