United States of Americanas wrote:Let me edit that 2030 electric vehicle requirement.
By 2030 all personal vehicles shall be electric and commercial / heavy vehicles shall use the highest efficiency engines available on the market. No commercial vehicle that does not meet (insert a strict but realistic emissions standard here) shall be deemed roadworthy after the 2035 grace period expires. 15 years is more than enough for the commercial industry to buy newer and more efficient engines.
General Electric makes diesel electric hybrid systems which I am sure could be scaled down for a 18 wheeler.
And, again, the issue of cost becomes a factor. The highest efficiency engine available on the market may well put up a barrier to entry too high for new companies. The problem with trying to tell people they have to use the best available engine is that it almost invariably means the most expensive by a *wide* margin. A new Tesla costs over twice what a new Hyundai Accent costs, and that's with both being as basic as possible. That doesn't take into account highly-efficient-but-still-impractical engines, either, which often do still go on the market as luxury models/proofs of concept.
Scale is but one factor, and it's not the engine, but the batteries required to power it, that take up all of the space. That's something that, unless we invent a radically new technology that can safely store and release that much power (which, again, won't be happening any time in the foreseeable future barring some miraculous breakthrough), cannot be scaled down without scaling down range and/or power output.
LimaUniformNovemberAlpha wrote:Are there any transparent materials that would let the light through to the trees while lasting long enough to (eventually) pay for itself?
Sure there are, if you want to build a giant magnifying glass that would be starting fires faster than we can fill it.
The problem is that the amount of water you'd need to fill that thing and still be able to effectively put out more than one fire is also enough to block out the sun on its own. There's also the fact that we don't have the materials to hold that much water suspended overhead. One gallon of water weighs about 10 lbs. Your average in-ground swimming pool holds northward of 15,000 gallons. That right there is about 150k pounds of water, or about 75 tons. Now imagine how many pools it would take to cover the whole of the state.