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At least in countries like here in Finland, you get almost no energy from solar panels during winter months. 12 hours of storage to a solar array is not going t

by fi358 4y ago

At least in countries like here in Finland, you get almost no energy from solar panels during winter months. 12 hours of storage to a solar array is not going to work at least here.

pfdietz 4y ago
Finland is one of the worst places in the world for renewables. This means that any industry using significant amounts of energy is going to move away from Finland, once fossil fuels are no longer used.
- jltsiren 4y ago
  The viability of renewables depends more on population density than location. There are always some natural processes you can take advantage of to generate power. And if the density is low enough, like in Finland but probably not in the US, existing hydro should be enough to cover most energy storage needs.
- fi358 4y ago
  Most of the electricity in Finland is not produced by using fossil fuels. For example during year 2020 14 % of the electricity in Finland was produced by fossil fuels.
  - pfdietz 4y ago
    I was talking about energy intensive industries, not electricity production. If Finland has to compete with other countries that have cheap renewables, it will lose these industries. As an example of something like that today, look at primary aluminum production. https://en.wikipedia.org/wiki/List_of_countries_by_primary_aluminium_production https://en.wikipedia.org/wiki/List_of_countries_by_primary_a... There are 31 countries on that list, from China to Venezuela. Finland is nowhere on there. In the all-electric economy of the future, every energy intensive manufacturing activity will start to look like aluminum production.
epistasis 4y ago
Here is what I suggested in my comment: > storage (hydro or battery), to geothermal, to advanced geothermal, to hydrogen, to ammonia storage, to who knows what will be developed over the next few decades With storage on solar thrown in as only one option at the end. And though it will probably be a dominant solution because it will be by far the cheapest most locations, it won't work everywhere. So look to other tech. I desperately hope Olkiluoto comes online soon, but it's also a pretty clear indication that nuclear is not a spectacular option for Finland either. But it may be your best option!
- fi358 4y ago
  At least battery storage seems to be unrealistic solution. The needed amount of energy storage for several months is enormous and in addition to that problem, batteries tend to self-discharge. Geothermal energy and hydro storage are not without problems either. I am not sure about ammonia storage, but it would be interesting to see some calculations about the feasibility of storing so much energy by using hydro or ammonia. Thanks to the local green party we are behind schedule in nuclear energy. They have dragged the process by years and also in practice forced us to have a new reactor type. In reality much better solution would have been at least two smaller and more traditional reactors (which would provide also more redundancy) than more experimental reactor which is also uncomfortably large. However the older nuclear reactors we have, have worked pretty well and are still producing energy cheaply and reliably unlike renewal energy.
  - epistasis 4y ago
    I don't understand how the Green Party could have influenced the choice of using France's EPR versus other tech. Areva designed the large EPR because larger reactors are supposed to be more cost effective than smaller reactors. How has the Green Party dragged on the process of construction? What delays did they cause? I ask because I don't know the specific causes of all the delays, even the latest since it was first powered on. It's hard to get this info, which makes me suspicious that it's actually a third party causing the delay, because then those doing the building would be able to clearly state a great reason for the delay. Instead we are mostly left guessing st what is going on with construction.
askvictor 4y ago
Can't (isn't?) Finland's grid be connected to places where there is solar?
- fi358 4y ago
  Perhaps in theory, although transmission losses would be large. But I wouldn't want to be on the mercy of distant countries, perhaps on different continent, for getting energy, especially during winter. And as there are other possibilities than solar energy, I don't see why to go for solar energy instead of the other alternatives.
  - askvictor 4y ago
    Indeed; though I thought EU had a lot of inter-country grid connections (perhaps more as backups). The distances don't seem outrageous compared to other grids. Edit: looks like Finland does indeed have international grid connections and imports about 20% of its electricity
  - fi358 4y ago
    I am not familiar with the winder conditions in Southern Europe. Is there enough sunlight during winter that it would be feasible to provide a lot of solar energy during wintertime - not just for local use, but to northern Europe as well? It might be that even there is too little sunlight and the solar power would have to come from different continent.

by fi358 4y ago

At least in countries like here in Finland, you get almost no energy from solar panels during winter months. 12 hours of storage to a solar array is not going to work at least here.

pfdietz 4y ago

Finland is one of the worst places in the world for renewables. This means that any industry using significant amounts of energy is going to move away from Finland, once fossil fuels are no longer used.

jltsiren 4y ago
The viability of renewables depends more on population density than location. There are always some natural processes you can take advantage of to generate power. And if the density is low enough, like in Finland but probably not in the US, existing hydro should be enough to cover most energy storage needs.
fi358 4y ago
Most of the electricity in Finland is not produced by using fossil fuels. For example during year 2020 14 % of the electricity in Finland was produced by fossil fuels.
- pfdietz 4y ago
  I was talking about energy intensive industries, not electricity production. If Finland has to compete with other countries that have cheap renewables, it will lose these industries. As an example of something like that today, look at primary aluminum production. https://en.wikipedia.org/wiki/List_of_countries_by_primary_aluminium_production https://en.wikipedia.org/wiki/List_of_countries_by_primary_a... There are 31 countries on that list, from China to Venezuela. Finland is nowhere on there. In the all-electric economy of the future, every energy intensive manufacturing activity will start to look like aluminum production.

epistasis 4y ago

Here is what I suggested in my comment: > storage (hydro or battery), to geothermal, to advanced geothermal, to hydrogen, to ammonia storage, to who knows what will be developed over the next few decades With storage on solar thrown in as only one option at the end. And though it will probably be a dominant solution because it will be by far the cheapest most locations, it won't work everywhere. So look to other tech. I desperately hope Olkiluoto comes online soon, but it's also a pretty clear indication that nuclear is not a spectacular option for Finland either. But it may be your best option!

fi358 4y ago
At least battery storage seems to be unrealistic solution. The needed amount of energy storage for several months is enormous and in addition to that problem, batteries tend to self-discharge. Geothermal energy and hydro storage are not without problems either. I am not sure about ammonia storage, but it would be interesting to see some calculations about the feasibility of storing so much energy by using hydro or ammonia. Thanks to the local green party we are behind schedule in nuclear energy. They have dragged the process by years and also in practice forced us to have a new reactor type. In reality much better solution would have been at least two smaller and more traditional reactors (which would provide also more redundancy) than more experimental reactor which is also uncomfortably large. However the older nuclear reactors we have, have worked pretty well and are still producing energy cheaply and reliably unlike renewal energy.
- epistasis 4y ago
  I don't understand how the Green Party could have influenced the choice of using France's EPR versus other tech. Areva designed the large EPR because larger reactors are supposed to be more cost effective than smaller reactors. How has the Green Party dragged on the process of construction? What delays did they cause? I ask because I don't know the specific causes of all the delays, even the latest since it was first powered on. It's hard to get this info, which makes me suspicious that it's actually a third party causing the delay, because then those doing the building would be able to clearly state a great reason for the delay. Instead we are mostly left guessing st what is going on with construction.

askvictor 4y ago

Can't (isn't?) Finland's grid be connected to places where there is solar?

fi358 4y ago
Perhaps in theory, although transmission losses would be large. But I wouldn't want to be on the mercy of distant countries, perhaps on different continent, for getting energy, especially during winter. And as there are other possibilities than solar energy, I don't see why to go for solar energy instead of the other alternatives.
- askvictor 4y ago
  Indeed; though I thought EU had a lot of inter-country grid connections (perhaps more as backups). The distances don't seem outrageous compared to other grids. Edit: looks like Finland does indeed have international grid connections and imports about 20% of its electricity
- fi358 4y ago
  I am not familiar with the winder conditions in Southern Europe. Is there enough sunlight during winter that it would be feasible to provide a lot of solar energy during wintertime - not just for local use, but to northern Europe as well? It might be that even there is too little sunlight and the solar power would have to come from different continent.