@henrihorn@mastodon.energy
@henrihorn@mastodon.energy avatar

henrihorn

@henrihorn@mastodon.energy

Energy expert in Espoo, Finland.

Finnish posts at https://mastodontti.fi/@henrihorn

This profile is from a federated server and may be incomplete. Browse more on the original instance.

henrihorn, to random
@henrihorn@mastodon.energy avatar

Climbing the ladder at a Finnish summer cottage:
The first PV panel 15yrs ago was 40W and ok for phone charging and 2 LEDs (tier 1)

The current 160W panel has been ok for using a laptop for several hours a day (tier 2)

Now I brought two additional 400W panels in order to power a fridge (tier 3).
A new battery might not be necessary if I keep the thermal mass inside the fridge high with water bottles etc and install one of the new panels towards east and one west.

henrihorn, to solar
@henrihorn@mastodon.energy avatar

The average turnkey price of a typical 7 kWp household system in has dropped to 7.700 €, as demand slowed down and there are no more shortages in component supply or skilled installation personnel.

Households can also apply for a 40% tax rebate on the installation work, which probably brings the total cost to below 1 €/Wp.

Demand for batteries and DSM automation exceeds expectations. There is no feed-in tariff so consumers try to avoid feed-in.
https://yle.fi/a/74-20079845

henrihorn,
@henrihorn@mastodon.energy avatar

@osma @burger_jaap The compensation for micro feed-in electricity is specified by the seller, and companies can compete on this. Spot price minus 0,2 or 0,3 cent/kWh seems typical. In addition, the local distribution company is allowed to charge 0,07 cent/kWh.

Are there studies showing that solar feed in prices are lower than average spot? Daytime prices are higher than night, which benefits solar power. But winter is also costlier than summer...
Solar share is still too low to affect market

henrihorn,
@henrihorn@mastodon.energy avatar

@osma @burger_jaap Your claim was that the most likely times of excess solar energy are those with lowest spot prices. I was expecting more empirical data to support that claim.

henrihorn, to Russia
@henrihorn@mastodon.energy avatar

This might be a nice place for my next installation. South facing barn roof, almost no shading. Easily fits 10kWp. It would mostly feed to grid as the farm itself has very low power demand.

Just 5 km behind those birches in the background is , where 70% of Finnish primary energy used to come from. This could be my tiny contribution for .

henrihorn, to Finland
@henrihorn@mastodon.energy avatar

Yesterday 26.3.2024 was a bad day for in . With over 6.000 MW total installed capacity, net generation was negative by about 20 MW for a few hours around noon.
In the evening winds increased and at the moment wind is the largest source of power providing over 3.000 MW, covering more than a third of total domestic generation.
https://www.fingrid.fi/en/electricity-market/power-system/

BM_Visser, to random Dutch
@BM_Visser@mastodon.energy avatar

Which EU country had the highest share of solarPV in its electricity mix in 2023?

Note: my guess was Greece, but I was wrong.

henrihorn,
@henrihorn@mastodon.energy avatar

@BM_Visser Quite a fascinating list. What explains Hungary's leadership on this list, almost 20% of electricity from solar?

Neighbors like Czechia are Romania are nowhere near that level, and last one is the solar thermal pioneer Austria, with even lower PV share than Finland?

Is it policy, culture or perhaps a exceptionally enabling environment for PV installers?

henrihorn, to random
@henrihorn@mastodon.energy avatar

The share of electricity in households in Finland has quickly increased to one third (red line in graph below). This allows households to participate in thus improving grid balancing and integration of more wind power. The introduction of 15-minute resolution in spot pricings also helps.
https://yle.fi/a/74-20077503

henrihorn, to random
@henrihorn@mastodon.energy avatar

Germany hasn't increased use after phasing out nuclear. In fact, lignite mining is now as low as in 1920's.

https://mastodon.green/@VQuaschning/112009261005651403

henrihorn, to random
@henrihorn@mastodon.energy avatar

New CEO Asta Sihvonen-Punkka:
Today Finland has five 400kV lines between windy north and consumers in south. In 10 years it will be eleven.

jon, to random
@jon@gruene.social avatar

This is tragic

One determined cyclist in Oberhausen keeps repeatedly reporting illegally parked cars in one street, and fines keep getting issued

Everyone accepts the cars are illegally parked

And the inhabitants are annoyed about the cyclist

Why isn’t the Ordnungsamt doing what the cyclist is doing and reporting the infringements?

https://www.tz.de/welt/strafe-anwohner-streit-eskaliert-radfahrer-aerger-falschparker-anzeige-92753980.html#google_vignette

henrihorn,
@henrihorn@mastodon.energy avatar

@jon Local newspapers often get significant revenue from automobile industry advertising, and it would be naive to believe that this didn't have an effect on the journalistic content of these papers. Automobile marketing promotes freedom, to which parking restrictions are in direct conflict.
Is there a central government ombudsman available that can be contacted when local Ordnungsamt fails to enforce parking laws?

henrihorn,
@henrihorn@mastodon.energy avatar

@jon The Ordnungsamt would no doubt respond to the Ombudsman that they don't have resources for more enforcement. But depending on where the fines are paid, more enforcement would probably pay for itself. So the Ordnungsamt could also be accused of wasting public money by failing to collect due payments. Also, they are distorting the market and violating the commercial rights of private parking facility operators by competing with publicly funded and illegal roadside parking.

henrihorn, to Finland
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This new 11 MW(th) Air-Water in Vermo, Espoo is the largest of it's kind in and a first step to 100MW Air-Source HPs on the network in Espoo, Kauniainen and Kirkkonummi.

It was built last year next to a 160 MW oil-fired peak boiler. This week temperatures plunge below the design temperature -15°C of the , so the peak boiler takes over. Luckily only for few days annually, and using bio-oil.

https://www.fortum.com/products-and-services/heating-cooling/espoo-clean-heat

henrihorn,
@henrihorn@mastodon.energy avatar

BTW, does somebody know of a bigger anywhere? The only multi-MW heat pumps I found are using wastewater or seawater as heat source. A few ground source exist in Finland but I believe at only about 4MW.

henrihorn,
@henrihorn@mastodon.energy avatar

@nemobis I have also wondered why Fortum is unwilling to build large ground source heat pumps for . Perhaps they are still experimenting, and air-source HPs are both cheaper to procure and easier to relocate if necessary. shopping mall already has 4MW GSHP, so perhaps they consider it to be more potent competition to their district heat and generally oppose such development.
Also, Fortum is not building seasonal heat storage like Helen and Vantaan Energia .

henrihorn,
@henrihorn@mastodon.energy avatar

@nemobis On the other hand, Fortum does have some bad experience with the failed 6km borehole in Otaniemi. And they do recover heat from wastewater in Blominmäki and Suomenoja treatment plants, so that source seems exhausted.

henrihorn, to random
@henrihorn@mastodon.energy avatar

Owners of coal power stations in US are warning that retiring old power plants will jeopardise the power system.
https://www.utilitydive.com/news/generator-retirements-threaten-grid-reliability-NERC/702504/

A similar warning was made in Germany in 1993, claiming that wind + solar + hydro power can never exceed 4% share in power production. Never.
https://www.enklip.de/besondere-quellen_7_2226224495.jpg

Meanwhile in Finland, companies line up to offer AI tools for households and businesses to exploit the hours of very cheap electricity, enabled by cheap wind power.
https://yle.fi/a/74-20065437

henrihorn, to Finland
@henrihorn@mastodon.energy avatar

All Finnish solar power plants above 1MW, current and planned, are now presented on a web interface at
https://aurinkosahkovoimalat.fi/

The site is established by government authority Motiva. They expect enormous growth in utility scale capacity in :

Completed: 50MW
Under construction 260MW
Permitting stage: 6500MW
Feasibility stage: 2700MW

Also project sizes increase, from less than 10MW today to some exceeding 500MW.

https://www.motiva.fi/ajankohtaista/tiedotteet/2023/suurten_aurinkovoimaloiden_tuotantokapasiteetti_voi_olla_jopa_190-kertainen_vuoteen_2030_mennessa.20543.news

henrihorn, to cycling
@henrihorn@mastodon.energy avatar

The commute to campus in northeast has excellent infrastructure. If snow ploughing is prompt as promised, cycling on this can be safe, healthy, quick and very enjoyable year round.

Tomorrow , the first inter-city light rail line, finally starts operation, connecting east Helsinki and , the capital's western neighbor.
These tracks left in the picture will serve 90.000 daily passengers: https://www.hs.fi/kaupunki/art-2000009902854.html

henrihorn, to nuclear
@henrihorn@mastodon.energy avatar

Construction at the project site in northern Finland ended a year ago after russian invasion in Ukraine, with 800 million euros lost so far. The supplier was , the russian nuclear company. There are 5 lawsuits in progress, dealing with various claims for compensation. Claims are not public, but are likely in the billions.

Some still believe that a new developer could build a nuclear plant at the site but it certainly won't be Fennovoima.

https://www.hs.fi/talous/art-2000009923118.html

henrihorn, to random
@henrihorn@mastodon.energy avatar

The new government of Finland published their programme. The Finnish version is 244 pages but there is translation to English of 88 pages.

The translation starts from section 7 which happens to cover energy.

https://valtioneuvosto.fi/documents/10184/158702198/Excerpts+of+the+outcome+of+the+negotiations+on+the+Government+Programme+16+June+2023.pdf/f6c8c388-26c8-2712-4996-789b511a37ec/Excerpts+of+the+outcome+of+the+negotiations+on+the+Government+Programme+16+June+2023.pdf?t=1686921846994

henrihorn,
@henrihorn@mastodon.energy avatar

There are some good items in the programme:
-utilities must provide customers with demand response automation
-citizen's participation in small scale generation increases, including through Energy Communities
-end double taxation when charging/discharging electricity storage
-support long and short term heat storage
-support pumped hydro
-R&D increase to 4% of GDP with focus on energy transition
-independence of Russian imports
-fossil fuels phased out in heat and power generation by 2030

henrihorn,
@henrihorn@mastodon.energy avatar

But there are some silly entries, particularly on wind and nuclear energy. There is an unsubstantiated claim that Finland needs more nuclear energy. Despite repeated calls for competitiveness and technology neutrality, nukes will benefit from public financing and capacity markets.
Wind power will be penalised by distance minimums and the requirement to include dispatchable capacity. This is precisely the nonsense that the industry feared.

henrihorn, to random
@henrihorn@mastodon.energy avatar

The new government in Finland will cut the development budget by 250 million €. My work on advising energy sector development at the ministry for foreign affairs will end on the last day of July.

henrihorn, to random
@henrihorn@mastodon.energy avatar

WaPo sees leading to:
-millions of parking spaces we don’t need. Each one costs us.
-addiction to free parking, a bad habit that harms health, businesses and cities. The main beneficiaries are cars, not people
-minimum parking requirements raise housing costs, subsidize car ownership and congestion, increase homelessness, deter transit and pollute the air

Parking spots cost $5,000 to $80,000 to build. Everyone pays, even the ones who don't drive.

https://www.washingtonpost.com/climate-environment/2023/05/02/eliminating-parking-minimums-liveable-cities/

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