Categorie: EROI

From EROI to EROLI: energy return on Land investment ? 2/2

In the agricultural project that I described in my previous contribution [1], which was initially about the EROI, the energy return on energy investment, I subsequently calculated the effects back to land’input’. But then the thought soon arised: would is also be possible to develop a LROLI, a Land return…

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EROI and land use of potato crop – a pilot 1/2

In a recent project , ‘Verrijkende Landbouw’ ( Enriching Agriculture) [1], I was able to refine the theory and methodology of MAXergy, using Embodied Land as an indicator [2], thanks to a practical pilot. As follows. Agriculture needs to change. That should be obvious by now. And not only regarding…

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People vs Resources, update and annex (Max Power)

It has been a year since the Dutch version of the book was published, Gebroken Kringlopen (Broken Cycles). I handed out the first copy to Marjan Minnesma, who is on top of the required transition with NGO Urgenda. The English translation came out last month under the name “People vs…

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Let nature do the work… EROI in agriculture

A few months ago I wrote about agriculture, and that the EROI was 0.16: 1 (energy return on (energy) investment) – on average across all agricultural products in the Netherlands, and the EL (Embodied Land) no less than 7.7 ha-year / ha year. Much more goes in than comes out,…

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