On the 'Natural Battery' hypothesis for the Hessdalen lights: a quantitative reassessment
Massimo Teodorani, 2026. hessdalen.org (old site, reports).
Restates the natural-battery idea of Monari, Montebugnoli and Serra (2013): sulphide and iron deposits on one side of the valley and copper deposits on the other form a galvanic cell with groundwater as electrolyte. Argues from self-potential electrochemistry that such a geobattery yields at most about 1 V, some six orders of magnitude short of what is needed to ionise air; that it offers no account of the lights' form, colour or motion; that a static source does not predict the decline in witness reports; and notes that Vargemezis et al. 2024 judged seismicity too weak for a stress-activated piezoelectric source.
What it's used for here
The quantitative case against the battery hypothesis, and the source for what that hypothesis says.
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Teodorani, M. (2026). On the 'Natural Battery' hypothesis for the Hessdalen lights: a quantitative reassessment. hessdalen.org (old site, reports). http://old.hessdalen.org/reports/RGPAPER11-BatteryRebuttal.pdf
@techreport{teodorani2026battery,
author = {Teodorani, Massimo},
title = {On the 'Natural Battery' hypothesis for the Hessdalen lights: a quantitative reassessment},
howpublished = {hessdalen.org (old site, reports)},
year = {2026},
url = {http://old.hessdalen.org/reports/RGPAPER11-BatteryRebuttal.pdf}
}TY - RPRT TI - On the 'Natural Battery' hypothesis for the Hessdalen lights: a quantitative reassessment AU - Teodorani, Massimo PY - 2026 JO - hessdalen.org (old site, reports) UR - http://old.hessdalen.org/reports/RGPAPER11-BatteryRebuttal.pdf ER -
Teodorani, Massimo. “On the 'Natural Battery' hypothesis for the Hessdalen lights: a quantitative reassessment.” hessdalen.org (old site, reports) (2026).