Marcos Buenijo wrote:
David Williams wrote:People are already making steps to do this , personally i think using waste gasses from breweries would be the answer , a more pure source. All Batteries have an inherent issue that to charge a battery to 100% requires 147% power input... let alone any losses discharging it... so a mini hydro setup loosing 35% (estimate) isn't so wasteful once compared to other storage means, Thermal mass and other storage means you mention would well exceed a batteries efficiency...
yes current laws seem at odds with the "goals" they like to pretend they wish to reach .... Put simply , saving you money, costs them taxes ... being self reliant relinquishes there control...
Actually, there is battery technology out there that is more efficient. Consider lithium iron phosphate for one example. The problem with hydro storage is primarily that one requires access to an appropriate site. The vast majority of people cannot participate. This is a primary reason that I am optimistic about photovoltaics as most people have access to sufficient solar insolation. The main problem is energy storage. Well, actually, the main problem is every thing is designed for a different paradigm. I truly believe that the power plant of the future is NO power plant, and photovoltaics will be the primary energy source.
David Williams wrote:For the set-up you describe Vanadium Redox Batteries would be the best
Explaination and Environmental Impact
r john wrote:David
In UK we have power accumulators where a mass is lifted to obtain the hydraulic pressure. Again unlike America we have high mass built into our houses normally a concrete raft to sit the house on and then either brick or stone to make the walls and slate or concrete tiles for the roof. There is no reason why this weight cannot be utilised in a hydraulic system as you see loads of house moves on tv where the house is hydraulically jacked up onto trucks. Small hydraulic generators are already available off the shelf so it seems capturing excess solar and wind into a hydraulic system could be an effective alternative to batteries.
r john wrote:Marcos
It seems you dont understand the technology. I suggest you have a look at the London Hydraulic company which at its peak had 180 miles of Hydraulic pipelines feeding the industry of London with peek power output of 5.2MW
Marcos Buenijo wrote:
r john wrote:Marcos
It seems you dont understand the technology. I suggest you have a look at the London Hydraulic company which at its peak had 180 miles of Hydraulic pipelines feeding the industry of London with peek power output of 5.2MW
John, respectfully, perhaps it is you who should have a look at the London Hydraulic Company: http://en.wikipedia.org/wiki/London_Hydraulic_Power_Company
I quote: "...a hydraulic power network of high-pressure cast iron water mains under London..... The pressure was maintained at a nominal 800 pounds per square inch (5.5 MPa) by five hydraulic power stations, originally driven by coal-fired steam engines."
This is quite different than the configuration you suggested earlier. It seems to me that this was done in order to more centralize the burning of coal and thereby lessen pollution. The hydraulic system in that case was used primarily as an energy transfer medium and not energy storage.
r john wrote:I know full well how the London Hydraulic company system worked and it had nothing to do with centralization of burning coal. As with any coal fired station it is more economic to run 24/7 to this end a means of storing energy had to be found hence the use of hydraulic accumulators. If you look at the work of the British engineer Armstrong you will see the development of the weighted accumulator which I believe could be a very efficient and effective energy storage system for storing excess solar and wind energy.
The purpose of the weighted accumulators in the system is to buffer the hydraulic pressure
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