Hydro makes excellent sense, though only available and viable in certain geographical areas. I continue being skeptical reg. wind and solar due to the issues reg. energy storage, at least the larger a proportion of the energy consumption they are meant to fill. I know that there are very many "creative" attempts at circumventing the issues of energy storage, but they seem to have multiple different issues (for instance "smart energy grids" where you attempt to change energy consumption to whenever the sun shines or the wind blows well...).
There are also some more meaningful solutions such as using existing energy storage facilities (which you typically have with hydropower), but those are very much case-by-case, and in some cases, if one country uses and depends on another country's energy storage facilities, that country becomes beholden to the other country, which is not exactly brilliant.
Hydro can be pretty destructive too. Look at China 3 Gorges Dam. US nearly dammed off the Yosemite Valley for power.
High voltage DC power lines could carry energy long distances for emergencies like the current. Large scale battery backup, like flow batteries and others could level loads too.
New technologies are on the way, ie:
BP and Chevron have led a US$40 million investment round for a Canadian startup that claims to have developed a unique way to extract energy from geothermal heat on demand, using an unpowered looping fluid design that's already prototyped in Alberta.
a single loop can generate "industrial-scale electricity or produce enough heat for the equivalent of 16,000 homes with a single installation." The target cost of energy production is $50 per megawatt-hour. [same price as large-scale solar]
Large scale battery backup, like flow batteries and others could level loads too.
But aren't such solutions currently still very expensive and/or immature and/or have other issues? If there are improvements in such technologies, I believe wind and solar would become much more viable, and I do very much believe that energy storage is an excellent target for more research funding, but as far as I know, it is still at least a ways off.
Geothermal also sounds interesting, though if it is viable, efficient, robust, etc., and how far off it is, I don't know.
It's funny because Sweden currently uses 0% wind and 0% solar and less nuclear then just 1 year ago. It's been replaced by oil, because oil works.
The share of renewable energy used in Sweden keeps growing. Already in 2012 the country reached the government's 2020 target of 50 per cent. For the power sector, the target is 100 per cent renewable electricity production by 2040.
Last updated: 14 April 2020 -- https://sweden.se/nature/energy-use-in-sweden/
Sweden is big on hydro and biofuels, about 12% wind. Still a lot of nuclear. Too far north for much solar.
Hydro makes excellent sense, though only available and viable in certain geographical areas. I continue being skeptical reg. wind and solar due to the issues reg. energy storage, at least the larger a proportion of the energy consumption they are meant to fill. I know that there are very many "creative" attempts at circumventing the issues of energy storage, but they seem to have multiple different issues (for instance "smart energy grids" where you attempt to change energy consumption to whenever the sun shines or the wind blows well...).
There are also some more meaningful solutions such as using existing energy storage facilities (which you typically have with hydropower), but those are very much case-by-case, and in some cases, if one country uses and depends on another country's energy storage facilities, that country becomes beholden to the other country, which is not exactly brilliant.
Hydro can be pretty destructive too. Look at China 3 Gorges Dam. US nearly dammed off the Yosemite Valley for power.
High voltage DC power lines could carry energy long distances for emergencies like the current. Large scale battery backup, like flow batteries and others could level loads too.
New technologies are on the way, ie:
BP and Chevron have led a US$40 million investment round for a Canadian startup that claims to have developed a unique way to extract energy from geothermal heat on demand, using an unpowered looping fluid design that's already prototyped in Alberta.
a single loop can generate "industrial-scale electricity or produce enough heat for the equivalent of 16,000 homes with a single installation." The target cost of energy production is $50 per megawatt-hour. [same price as large-scale solar]
https://newatlas.com/energy/bp-chevron-eavor-geothermal-loop/
But aren't such solutions currently still very expensive and/or immature and/or have other issues? If there are improvements in such technologies, I believe wind and solar would become much more viable, and I do very much believe that energy storage is an excellent target for more research funding, but as far as I know, it is still at least a ways off.
Geothermal also sounds interesting, though if it is viable, efficient, robust, etc., and how far off it is, I don't know.
🤣😂
Source?