Thanks to many qualified authors, Energy Science and Engineering has contained papers of good quality and on relevant topics during the past year. When 2017 started, we had seen the falling costs of solar and offshore wind power during the preceding year. Many of the technologies and systems issues then identified have been addressed in the in the journal. During 2017, industrial development has progressed further. We have seen procurement of offshore wind by Germany resulting in winning bids, offering to produce electricity without any subsidies. But the most remarkable news came from Saudi Arabia, where solar power was offered at 1.79 US¢ per kWh. While it was possible a year ago, to say that new renewable sources of electricity could outcompete any other kind of new power plant, we are about to reach the point where new solar and wind plants provide cheaper electricity than existing thermal plants. This will speed up the transition. But when doing so, opportunities to utilize the characteristics of the new power supply will come fast as well. Electricity-intensive industries may maximize their competitiveness by power price-optimizing strategies, departing from traditional continuous operation process technologies. There is increased use of power control techniques automatically managing any electricity consumption in relation to real-time price information. New developments of microgrid, storage, and direct current technologies are finding customers as disconnecting from large electricity grids becomes economically feasible and often in demand before that solution is really economically superior. As the supply of solar and wind electricity has become cheaper, many have started to disregard energy efficiency options. This is a mistake for at least three reasons: First, energy-efficient technologies have developed fast, too. The obvious example is that while solar photovoltaic technologies making light into electricity have developed, light-emitting diodes, making electricity into light, have demonstrated improved efficiency and falling costs. Sometimes, the development is faster than the implementation so that the economic efficiency potential is actually increasing. Second, when looking for ways to adapt to fluctuating availability of solar and wind power, traditional energy efficiency measures often appear as cost-efficient options to minimize system costs. Finally, lower cost electricity has made electrification competitive with fuel-based systems, almost always providing higher energy efficiency and better controllability at the same time. No doubt, Energy Science and Engineering has a wide range of topics to cover during this period of rapid progress. The ambition is to contribute to the rapid transfer of science into industrial engineering and utilization. To this end, being an open-access journal is a vital feature. Global, immediate access for anybody with Internet is avoiding many barriers previously delaying implementation. With its first impact factor of 2.172, this should be more attractive than ever!
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