The environmental impact of barrier tidal power is very high. They're also prone to silting up.how about going back hundreds of years and create a side channel/sluice and a large paddle wheel (water mill) so there is nothing to maintain underwater?
Prop design dynamics is a revoltingly horrible field of physics that should be left well alone...Im not sure why hydro energy is touted as being so difficult. That Shetland generator seems a bit strange as in using a two bladed prop with large blades. Surely a much smaller prop with 4 blades would give more power?
The generator unit does not have to be submerged, just the propeller (like an outboard engine but in reverse) or how about going back hundreds of years and create a side channel/sluice and a large paddle wheel (water mill) so there is nothing to maintain underwater?
There are many youtubers that have a small stream in their back yard and are generating an impressive amount of energy from a small flow.
A structure like a tube on a cliffside, turbine at the top and the wave action would push air up then suck it down rotating the turbine.. So many possibilities.
It's only required below 12mph.Apparently a new law comes into force to state Electric cars must emit a noise https://www.bbc.co.uk/news/business-48815968
Hmm, lets see the manufacturers have a field day with one, so that drivers can choose to make their car sound like an Italian V6, Ferrari V12, American V8, Formula 1 car or perhaps a Bugatti Chiron.
I do think that electric cars should emit a noise in urban areas and country lanes but, do not see the need for it to be on all the time such as carriageways and motorways.
I do think that electric cars should emit a noise in urban areas and country lanes but, do not see the need for it to be on all the time such as carriageways and motorways.
More fun if it was a Twizzy!a Renault Zoe that sounds like a dodge charger
That’s exactly what range extended hybrids are. A car with a big battery and a genset.perhaps we can lug a small genset around in the boot. is there a real /accurate ,trustworthy read on the green credentials of producing, buying, running, maintaining,disposal of electric cars ? cos i am skeptical as to the "real" difference
They can refine the lithium from seawater which has made reserves significantly larger and easier to get to.What I don’t have is any data on battery production; it’s not a horrendous process nowadays though AIUI.
It’s the energy expenditure more than anything else really. The mining is pretty efficient all told.They can refine the lithium from seawater which has made reserves significantly larger and easier to get to.
Please see reply ~108So here we have a diesel van with a petrol generator charging an electric car
The future is bright
View attachment 51148
Please see reply ~108
yeh, but.. good comedy is worth repeating
There were only 12 episodes of Fawlty Towers, that were domiciled in JBell's part of the world. The external 'hotel' shots were filmed at the old Wooburn Green Grange casino and club.