That won't cut it for industrial use (trucking, airlines, shipping, etc). For these things where fuel is a major cost, a swap to batteries is untenable until th

That won't cut it for industrial use (trucking, airlines, shipping, etc). For these things where fuel is a major cost, a swap to batteries is untenable until they are cheaper or equal either via heavy carbon taxes or an improvement in battery tech well beyond the 20% number you have in mind.