1. Until India and China stop polluting, our green energy efforts are like pissing in the wind. It hurts us, while doing nothing for the planet. We cleaned up our act and pollute 1/50th as much as we did 60 years ago. If we get that down to 1/60th, all it’ll do is make us poor.

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2. Wow people are so rude! I love how you present your videos! Look forward to watching more! 👌

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3. Fran, I wish you could see the Hugh lab. It looks like your lab. I adore your vids. One aut to another.

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4. Don't worry about complainers. You do you. I think your videos are great.

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5. Whatever goons say to make you more like a “normal” youtuber can be handily ignored. Who the heck even thinks about something like eye contact?? Your videos are professional and interesting and you don’t need blue and pink LED lights in the background or some stupid headset either!

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6. 5V city wide would be a waste cause it would be extremely high current. Even higher than mains. I think there should be a converter for each apartment, switch mode based. This would be much more efficient than having multiple wallwarts for each and every thing that needs 5V. Though, routers need 12 or even 15V, some 9 … It's chaotic.

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7. I love Led lights but the problem is the cheap power supplies in them. The drop capacitor will fail way before the LEDs themselves. Low volt I
   Infrastructure is ideal, but the is a ton of work in roll out and publishing of standards. Mains AC power will be what people continue to use for the next several decades. With that in mind I would like to see the changing of light fixtures to have LEDs just built directly on board with modular, replacible power supply to handle the step down. At minimum make it easier to get in bulbs for those of us comfortable with recapping the supply board.

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8. Even a low voltage socket adapter might be an better option than the disposable circuits we've got. Low voltage household systems make a lot of sense!

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9. Awsome

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10. Fran is the best

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11. I think kettle turbine generation is more efficient than car engines and electric motors are more efficient than internal cumbustian. So you have to add and subtract the efficiencies to see if your electric car is more carbon efficient or not. Then you have to calculate the carbon generated in transport and manufacture of the vehicle.

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12. having built a new home some 10years a go I separated power and lighting systems the lighting is all 12v LEDs and runs from a12v deep cycle batteries charging from solar
    and it runs brilliantly

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13. What voltage would a city need to start with to supply 5 volts? 10 volts? 20 volts? How much loss in resistance wiring? That is why we use AC transmission of power.

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14. I think you CAN get 1.5v rechargeable AA batteries for devices that are fussy, you can search Amazon and other sites for these specifically.

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15. I love to use NiMH batteries (Ni-mmmmhhhhhhph). They're great drop-in replacements for a lot of gadgets. The nice thing is that you're less likely to destroy something with under-voltage than you are with over-voltage.

    The one downside is that they self-leak over time, so (depending on mfg) can lose their charge in as little as a few months (some better ones a year or two). That's why all the handtool manufacturers use Lithium now.

    So, I keep all my batteries in a battery insulator store, and put them into a gadget only when I need them. Otherwise, I forget where they all are and they lose charge. If they self-discharge too long, they don't revive.

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