Is a new electrical ecosystem needed and what could it offer?

Interesting post , quite a lot of thinking in HVDC or UHVDC and its potential in grids of the future , i dont think the electric HGV will happen ,i mean it looks nice as an idea , but it doesnt necessarily translate to the best choice for point to point transport on different driving conditions , lots of \\hgv going to HGV going to LNG and LBG and its giving some favourable results most notably in non CO2 and particulates. I think 3 phase is here to stay but if we do settle on on UHVDC then we have a whole load of possibilities to think about and as you say we get some efficiencies in some places and some non transformation problems voltage problems in others. Generally given how much electricty is wasted , i hope we can think through the transmission losses , as these are the bulk/volume transports of electrical energy , so quite of lot of initial savings to be explained there. Being as the voltage drop affects pretty much every calculation in electrical energy networks and systems , then this might suggest we see some different thinking ,as long lines might not deliver the best solution , so perhaps localised generation and grouping .I think its about 1000km for HV lines before the calculation really shows. local renewables could change things taking some areas off grid, so the transmission grid of the future will be somthing possibly carrying a lot more at UHVDC , and if new housing is all electric , we have to plan for peak winter transmission flows being high , but once to distributon I think we will have to re specifiy at 600-800v ac (more than 3 phase is a very interesting thought), either that or think the unthinable and re specify every street cable in the uk dont forget a lot of the high energy individual loads could come off grid .

Interesting post , quite a lot of thinking in HVDC or UHVDC and its potential in grids of the future , i dont think the electric HGV will happen ,i mean it looks nice as an idea , but it doesnt necessarily translate to the best choice for point to point transport on different driving conditions , lots of \\hgv going to HGV going to LNG and LBG and its giving some favourable results most notably in non CO2 and particulates. I think 3 phase is here to stay but if we do settle on on UHVDC then we have a whole load of possibilities to think about and as you say we get some efficiencies in some places and some non transformation problems voltage problems in others. Generally given how much electricty is wasted , i hope we can think through the transmission losses , as these are the bulk/volume transports of electrical energy , so quite of lot of initial savings to be explained there. Being as the voltage drop affects pretty much every calculation in electrical energy networks and systems , then this might suggest we see some different thinking ,as long lines might not deliver the best solution , so perhaps localised generation and grouping .I think its about 1000km for HV lines before the calculation really shows. local renewables could change things taking some areas off grid, so the transmission grid of the future will be somthing possibly carrying a lot more at UHVDC , and if new housing is all electric , we have to plan for peak winter transmission flows being high , but once to distributon I think we will have to re specifiy at 600-800v ac (more than 3 phase is a very interesting thought), either that or think the unthinable and re specify every street cable in the uk dont forget a lot of the high energy individual loads could come off grid .