Nicholas Palmer <greendirectionconsult...@googlemail.com> wrote: > If it can only manage a COP of 1.5-2.5, it's not as effective as a heat > pump... > Yes. 1.5 has no practical use. Still, 50 W excess is good because it can be measured with confidence. I think they said the results are "consistent." If they can make it happen every time, "consistently" with about the same magnitude, then I would say it is important progress.
One of the articles says it is not ready for practical applications yet. I suppose they realize that 100 W in, 150 W out has no useful applications.