What the paper actually shows
The research, "Thermally evaporated perovskite/silicon tandems via formamidinium eutectic" (DOI 10.1038/s41586-026-10970-1), details a thermal evaporation route to making tandem cells that stack perovskite over silicon. Tandem cells have long promised better efficiency than plain silicon panels. The bottleneck has always been manufacturing at scale. This paper describes a path around that — and the scalability piece is what matters for energy economics. Efficiency gains only count if you can produce the panels cheaply and in volume.
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Why miners should care
Electricity is the largest operating cost in Bitcoin mining. Cheaper solar directly improves miner margins, and better margins mean less pressure to sell BTC to cover power bills. That's not a today story. Commercial products are years away. But
