It is time for a report on the heart of future desalination. This is the new IDTechEx report, Desalination: Off Grid Zero Emission 2018-2028. Coming from very little in 2018, off grid zero emission desalination will be a rapidly growing $35 billion market in 2028. The report looks closely at its roadmap of exciting new desalination and electricity technologies that will boost performance and reduce cost, in particular reducing what is usually the largest cost element - electricity. That embraces photovoltaics that is three times as efficient, Aerial Wind Energy AWE such as tethered kites more affordable and versatile than ground wind turbines and many new forms of water power that viably downsize and are sufficiently rugged and free of marine growth. There is a lot of benchmarking best practice in other industries ahead in these aspects for all sizes. This 180 page report covering 79 organisations is replete with new infograms and forecasts. They clarify such things as the increasing interaction and integration in this emerging industry. Desalination plants will refill the Dead Sea while providing drinking water and many will provide spare electricity for communities. Some will be part of village, island and ship microgrids. How many islands? Which countries? What is best practice? It is here including future desalination options and why certain ones are dying out. The report starts with a 48 page Executive Summary and Conclusions that is sufficient in itself for those in a hurry. It surveys the problem globally, the winning technologies, the trend to off grid zero emission and the future roadmap of technology. Forecasts of installed capacity and sales are given to 2028 of this, the heart of next generation desalination. New combinations and applications of technologies are proposed, best practice illustrated and everything is put into the context of the rapid trend to off grid zero emission electricity production generally. The Introduction then gives an overview of desalination technologies and off grid motivation. A chapter on desalination technology appraises what will be a match for new off grid electricity technology, with detailed comparisons and best practice examples. Chapter 4 specifically examines emerging off grid electricity technology for desalination, Chapter 5 explains off grid ZE electricity system elements and how to avoid the troublesome ones and appraise what comes next. Chapters 6, 7 and 8 show how desalination will be tackled by new photovoltaics, wind power and water power with best practice examples. The increasingly popular mobile desalinators will sometimes double as transport, provide electricity for farm robots not just irrigation and some will replace increasingly unaffordable diesel gensets expensively modified to meet new emissions laws and involving yesterdays crippling fuel supply systems. There are many strategies for avoiding expensive, dangerous, short lived batteries in desalination and examples are given. For Desalination: Off Grid Zero Emission 2018-2028, multi-lingual PhD level analysts from IDTechEx have carried out interviews worldwide, mined restricted databases and thought creatively on your behalf, presenting many new ideas. The research was carried out in 2017/8 and it is constantly updated. There are drill down reports for those wanting even more. They cover AWE, off grid overview, electricity from urban infrastructure and much more.