Off Grid

Tuesday 30 November 2021 - The focus is recent progress and what to expect in 2022. Learn the basics such as the dead ends, opportunities, and emerging market demands; See the eleven families of appropriate technology appraised and compared including possibilities for combinations; and much more.

Friday 12 November 2021 - covering recent progress with smart cities and what is likely to happen in 2022. It deals with both new cities and existing ones that are radically modernising. Learn how the objectives are now far more ambitious

Ideas have moved on from a smart city being a dystopian world of sensors everywhere and people control by artificial intelligence - smart cities are primarily about progressing to water, food, and power independence and minimal transport. How to make smart cities in both deserts and the sea must be figured out.

No one complained about gasoline cars going much further than you would ever drive. As people got used to them, it was realized that long-range means less hassle. With electric cars, the argument is even stronger. Long-range saves you money.

Electraflyer has announced that it has passed crossover, meaning it now sells more battery-electric aircraft than polluting ones. Pipistrel sold over 100 battery-electric aircraft last year as they take over from its traditional offerings. Bye Aerospace does not even make conventional aircraft. With its Tesla-style approach, its order book exceeds 720 battery-electric aircraft evenly split between two and four-seaters. As the IDTechEx report, "Manned Electric Aircraft: Smart City and Regional 2021-2041" points out, this has caught Cessna, Cirrus and Piper by surprise.

Thermoelectrics is a business impeded by the use of the toxic rare metal Tellurium. Commendably, there is a trend to alternatives in research but few volume sales as yet in any of the three uses. These are energy harvesting to make electricity where it is needed and the more successful cooling and heating, those last two constituting very-reliable, solid heat pumps.

Thursday 26 August 2021 - Why is even seasonal storage a new requirement? How is it that storage by compressed air, gravity and other non-battery options closely leverage mine assets for greater safety and viability? Why does next generation solar fit so well in mines? and more.

Imagine mines with so much electricity production and storage that they do far more downstream processing. As reserves deplete, many will even transition to being zero-emission power stations and electricity storage for local communities and industry or even national grids. The cost of making-good becomes income from reinvention. That is the untold story of mining electrification, beyond the vital safety, greening, and cost reduction of electrics.

Thermoelectric cooling, heating, and harvesting is partly a great success now, partly to be a success later. First to analyze this big picture is the new IDTechEx report, "Thermoelectric Cooling, Heating, Harvesting: 90 Companies' Achievements and Strategies Appraised with Roadmap 2022-2042".

While they may have struggled to find their place in the market over the past few years, there will be significant adoption of redox flow batteries towards the end of the next decade according to a new IDTechEx market report, "Redox Flow Batteries 2021-2031".