🧵 1/ The interconnection #EstLink2 used for power transfer between #Finland and #Estonia was disconnected suddenly on January 26th just after midnight local time.
An investigation regarding the disconnect has been launched. It's currently unknown why the disconnect happened and if there was an outside factor regarding it similar to the #Balticconnector last year.
This was reported by #Fingrid, Finland's transmission system operator.
2/ The failure point of the #EstLink2 interconnection still hasn't been found.
#Finland's transmission system operator #Fingrid estimates that the interconnection will be unavailable until February 4th.
The failure won't affect Finland's energy market, but has resulted in higher than normal energy prices in #Estonia due to 650MW being unavailable. Today's avg prices in Finland are 17.80€/MWh compared to #Estonia's 110.19€/MWh
@hanse_mina
EstLink2 Engineers: we don't know what's wrong or where the problem is.
Management: ok, but how long will it take to find and fix?
Engineers: I just said we don't know.
Management: We'll say "at least a week"
I get this in software a lot: we don't kniw what we need & you don't know how you'll build it, but tell us how long it will take +-50%
4/ #Finnish and #Estonian power system operators are closing in on the malfunction of the #Estlink2 undersea power cable between the two countries, head of the Estonian TSO #Elering Kalle #Kilk told ERR.
"The cable runs for 150 kilometers, we are now within 30 meters of where it failed"
"Even though it cannot be completely ruled out that someone deliberately sabotaged the cable, it is 99.99 percent certain this is not the case."
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