Storage of clean energy!

[chatelot16]

my heat pump reversible at 100 ° is achievable without prowess

the water tank at 100 ° is also in my means

it is therefore a storage medium that I can count on and that I can compare to others: I did not even say that it was the best

storage in the ground I let you dream

in addition the temperature increase is not the right way: whatever the temperature the heat pump cop compensates for the efficiency of the engine: and I find that we approach closer to the theoretical maximum by staying at a moderate temperature

[dedeleco]

Always the heat pump which works miracles to justify nuclear power plants with this electricity passing through heat pump heat storage thermal engine !!!!
For photovoltaic electricity, it is better the solar thermal stored directly underground in aquifer or rock, directly, because we gain, by not losing in the photovoltaic, at low efficiency 12%, or a factor of 5 to 10 times more, rather than the complicated photovoltaic, then heat pump thermal storage thermal engine !!

I'm talking about storing thermal summer solar heat (without a photovoltaic step, so as not to lose with its poor efficiency) stored for a long time at low temperature or at high temperature (better efficiency), to make electricity in winter with the engine. thermal with good efficiency. Storage underground can be in rock, at 30KWh electric per m3, or in an aquifer underground or the chatelot16 reservoir at 100 ° C, but at much lower capacity 5 to 10 KWh / m3, etc ...

Large tanks are very expensive, difficult to handle (real demolition of my garden) with also efficient heat pumps with short life (wear), while drilling the ground with drill and drill bit (even with hand as indicated by P. Schutt) is much simpler (used by Uretek that I can use, without demolishing my garden at all for 1000m3 of storage!) with a single final heat engine, than the photovoltaic chain heat pump heat storage engine thermal which multiplies the losses in reality !!!

The low capacity in KWh per m3 requires large volumes that only free land allows at low prices !!

[I Citro]

The idea of ​​using the battery capacity of electric cars is to consider, or to study.

This is one of the reasons for the arrival of Pâquerette:

I plan to eventually extend my photovoltaic roof for use in self-consumption.
This necessarily requires storage on batteries to smooth the photovoltaic power.
The idea is to supply the house with daily rates with my self-production so as not to consume during Full Hours, except in the event of failure of my self-production.
The “open” architecture of Pâquerette will allow me to experiment easily before transposing the concept on my other EVs, even, possibly on a stationary battery park (recycling of batteries at the end of their life, for example).

[dedeleco]

You can store thermal energy in quite a lot of body like hydrated and dehydrated salt and phase changes:
with commercial realization:
http://www.climatewell.com/index.html#/ ... w-it-works
and even make an ecolo cllimatizer:
http://www.climatewell.com/index.html#/ ... w-it-works

The lime stores 0,32KWh / kg of CaO (ie 320KWh / m3 but 900 ° C of concentrated solar energy is required.
Gypsum or plaster stores much less, but at lower T 163 ° C !!
sea ​​salt too.
Calcium chloride too.
http://fred.elie.free.fr/chlorure_calcium.htm
The number of bodies storing energy as well is huge with all the possibilities and temperatures.
http://en.wikipedia.org/wiki/Hydrate
http://scienceamusante.net/wiki/index.p ... de_chaleur
A list of real possibilities:
http://fr.wikipedia.org/wiki/Mat%C3%A9r ... ermique%29
http://en.wikipedia.org/wiki/Phase_Change_Material
At human temperature less than 100 ° C is stored at max 70 at 100 KWh / m3

The earth (clay, rock, etc.) free under our feet at + 36 ° C above the ambient stores 10KWh / m3 (between 20 ° C and 56 ° C).

Paraffin at 60 ° C 60KWh / m3 approximately (dodecanoid).

Overall view of the capacity possibilities 0,1KWh / L = 100KWh / m3 depending on the temperature:
http://www.bine.info/hauptnavigation/pu ... el=1436%29

[dedeleco]

my heat pump reversible at 100 ° is achievable without prowess

the 100 ° water tank is also within my means

A 500 to 1000m3 tank sealed at 100 ° C and insulated with more than 1m of insulation and making a compressor heat pump with my hands is completely impossible (nothing but the pump fluid is prohibited for purchase by individuals! !!, etc ..., only the pros protect the ozone layer !!)

Making 25 holes at 11m deep with a drill and drill are much more feasible with my hands, buying before the extension drills and drills used by Uretek and Geosec to drill and inject into the ground through foundations to straighten houses! !
Unpretentious summer solar collectors are also very accessible (black pipe under UV plastic) and all this for not expensive at all !!!

[chatelot16]

and make a compressor heat pump with my hands is completely impossible (nothing that the pump fluid is prohibited from purchasing to individuals !! !!, etc ..., only the pros protect the ozone layer !! )

we don't have to do everything by hand ... we can also use machines ... subcontract parts ... or buy components

for the choice of the fluid, the current polluting fluids are not compulsory

simple steam is usable!

to avoid the too low pressure of water vapor, there is also butane ... over the counter ... there is certainly already in your refrigerator if it has marked R600A ... if it is R290 means propane

but I never said that thermal storage with or without heat pump was the best and only solution: I simply quote it to compare it to the others, and I quote the heat pump to say that it can give a good return better than you think: the heat pump saves in one direction what carnot loses in the other

but we haven't finished laughing ... I'm going to talk about compressed air soon: it's also an interesting storage medium to compare

[dedeleco]

With compressed air, there are compressed springs, like the less fashionable spring motor, but with comparable storage capacities, because mechanical energy of deformation which involves interactions between atoms in the solid state, liquid or gaseous and therefore of the same order of magnitude.

[jlt22]

The Germans are experimenting with a method of storing renewable energies:
http://www.actu-environnement.com/ae/news/energie-hydrogene-gaz-reseau-renouvelable-14154.php4

[Napo dwarf]

a track which according to the negawatt association is very promising and could make it possible to overcome the discontinuity in the electrical production of wind turbines, photovoltaic panels, ... this is methanation
http://fr.wikipedia.org/wiki/M%C3%A9thanation

electrolysis of water then methanation

[dedeleco]

Question:
Isn't it as simple from forest wood, plants or algae to make this gas with a century old gasifier ???

Nature with trees, plants, even algae, does as well, without any installation on the ground, as beautiful natural greenery, which requires no investment in wind turbines or photovoltaic !!