Off-grid power has been in decline. Widely seeing it as the poor man's option, users have aspired to get beyond it to the more secure, "troublefree" world of on-grid - or so they believed.

Electric vehicles are the future and ones that make their own electricity are the end game for these.

This article works through the issues facing the development of thermoelectric harvesting, including high power, modular thermoelectric technology and turnkey thermoelectric generators.

All the publicity currently goes to the race to make regular and premium cars have longer range

There is more energy to harvest at sea. True, water craft have stronger resistance to overcome but on balance, it means that energy independent electric boats are more common than their equivalents on land or in the air and they have lessons for both.

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This article charts the development of water vehicles towards energy independence.

IDTechEx is hosting a free webinar on Tuesday 22 August.

RethinkX and Barclays Research have issued carefully prepared research concluding that the global peak for cars will be in only a few years. Analysts IDTechEx say around 2030. Most experts see it as inevitable.

It is now becoming clear that the appalling emissions from ships that cause global warming and local injuries can be virtually eliminated.

Sono Motors in Germany has officially launched its solar electric car Sion in Munich with first deliveries expected in 2019.