All aboard the BEV Train
All aboard the BEV Train
Fun little video
Tesla Model 3 Performance
Oversees an 11kWp solar array at work
Oversees an 11kWp solar array at work
Re: All aboard the BEV Train
Hi Dan, watched that last night. Seems like a relatively simple solution, that can be rolled out as needed.
Also, they didn't completely answer the question of batt weight. But I'm thinking if LFP and perhaps around 200Wh/kg for batts, then 500kWh is 'only' 2.5tn. Perhaps 3tn(ish) for pack weight. And that weight will drop as energy density continues to improve. Or ~1tn per carraige.
The future is arriving .... at platform 1.
Also, they didn't completely answer the question of batt weight. But I'm thinking if LFP and perhaps around 200Wh/kg for batts, then 500kWh is 'only' 2.5tn. Perhaps 3tn(ish) for pack weight. And that weight will drop as energy density continues to improve. Or ~1tn per carraige.
The future is arriving .... at platform 1.
8.7kWp PV [2.12kWp SSW + 4.61kWp ESE PV + 2.0kWp WNW PV]
Two BEV's.
Two small A2A heatpumps.
20kWh Battery storage.
Two BEV's.
Two small A2A heatpumps.
20kWh Battery storage.
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Oliver90owner
- Posts: 405
- Joined: Wed Jun 16, 2021 3:48 pm
Re: All aboard the BEV Train
My impression was that they gave lots of priorities to charging at the stations and acceleration - but nothing on regeneration. Still a good development from the energy efficiency/noise/pollution sides, but just missing the regen.
Re: All aboard the BEV Train
did not attempt to sell the efficiency, regen or CO2 savings ie the whole reason for doing it.
"Third rail electric trains can lose up to 25% of their power to heat. In 2011, Network Rail estimated that the DC network lost 21% of its input power, but that 27% was a better estimate for traction losses" Thats an avg.
Then regen could capture at least 50%
When diesel the engine is always running even when stopped and on overrun.
This BEV train can do 150 miles on full charge of 500 kwh
This is a no brainer
"Third rail electric trains can lose up to 25% of their power to heat. In 2011, Network Rail estimated that the DC network lost 21% of its input power, but that 27% was a better estimate for traction losses" Thats an avg.
Then regen could capture at least 50%
When diesel the engine is always running even when stopped and on overrun.
This BEV train can do 150 miles on full charge of 500 kwh
This is a no brainer
Re: All aboard the BEV Train
Good point on regen - no mention of that at all. Odd omission.
Tesla Model 3 Performance
Oversees an 11kWp solar array at work
Oversees an 11kWp solar array at work
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AE-NMidlands
- Posts: 2083
- Joined: Wed Jun 02, 2021 6:10 pm
Re: All aboard the BEV Train
They emphasised several times that this is a test bed for just the charging technology. Electric transmission is proven, as is regen braking. Batteries are improving all the time so that is something that will certainly get better (The Australian road train conversions deliberately separate battery ownership from the fleet so that the operator isn't tied into an obsolete technology.)
Battery EMUs are in use off the end of the third rail at Headbolt Lane (Liverpool) but they charge slowly while the train is on the 3rd rail.
This is just establishing the reliability of the fast charging and will start being tested in real service when the crews are trained.
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh batt
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!