I would think that outside of racing and boats, electric motor technology coupled with solar and battery advances will dominate the majority of those items in the next decade. I don't see a scenario where someone is willing to pay more for a more efficient chainsaw engine.
You mention India, but look into the NEMMP and really just India's policies over the past 5 years. Their 5th 12-year plan has a major cornerstone in strictly electric vehicle production for use by both the government and private sector as a whole, while providing big incentives for purchasing electric vehicles, whether 2, 3, or 4-wheeled. They are investing heavily in solving electrical service issues in several states as well due to that specifically hindering people from wanting to purchase electric vehicles.
China is a lot better market today, since they generate 70%-80% from coal fired plants, so there's really no net loss of pollution in going electric. However, they are dumping money heavily into renewable sources to combat rampant pollution and in 20 years, more than 50% of their electrical capacity will be in renewables, nuclear, and gas. At that point the benefit for electric vehicles will be a lot more prominent.
Generators, heavy equipment engines, maybe a car engine manufacturer for a chinese or indian car brand....those are the areas where I personally see any area for success. Industry will be able to swallow the up front costs for future performance and efficiency a lot better than private individuals will. Just my opinion. It just seems that the snail pace of this company and the introduction of their product into the markets is really going to hurt them as other technologies progress more rapidly.
