A photo from open sources
Developers from Scotland offer to “dump” into an abandoned the mine has tons of cargo to produce cheap electricity. By preliminary inventor calculations electricity will be twice lower than that of widespread lithium ion batteries.
The proposed device diagram is very simple: along the edges of the shaft winches with a load suspended from them are installed. When an excess of the electricity generated by the winch is turned on and lift the load to the surface. When a shortage occurs in the system electricity, winches will begin to smoothly lower the load into the mine, thereby driving the generators. The feature of this installation in that there is no need to dig the earth, but enough to use deep mined mine.
The mechanism includes 24 loads, the total mass of which It is 12 thousand tons (500 tons each). Mine into which the cargo will go down, it should have a depth of about 800 meters. By calculations of Scottish inventors such a system will provide electricity 63 thousand homes in one hour.
British expert Oliver Schmidt considers this approach the most profitable in the electricity storage market, since the costs of the construction of the battery system is not so high, but to serve she will be able to approximately more than 25 years. At the same time generated electricity (experts have already calculated) will be half as much than from using lithium-ion batteries.
About a year ago, Swiss inventors proposed similar gravitational battery, however for its functioning was proposed to build a tower. The Scots still the solution with mines is the most economical in terms of implementation and service.
A photo from open sources
Looking at a similar mechanism, many probably remembered antique watches that did not require electricity, but worked with application of cargo. It turns out all new – well-forgotten old. It is interesting to observe the reaction of a representative of modern youth, if you tell him that there used to be watches that worked from the “gravitational battery”. Hard to imagine, what contradictions will arise in his head.
Andrey Vetrov