The hidden hand

The fertilizer powering solar towers

Potassium nitrate feeds strawberry fields and stores heat inside concentrated solar plants at 565°C—while regulators flag it as an explosive precursor.

The number

565°C operating temperature

Yara's specialty fertilizer for citrus and tobacco is the same molten salt that circulates through Nevada solar towers as thermal storage. The compound's dual identity—agricultural nutrient and heat medium—places it under EU explosive-precursor monitoring, requiring 24-hour suspicious-transaction reports despite its industrial ubiquity.

Source: Solar Power Molten Salt -- Yara Industrial Nitrogen · Yara International · Jan 1, 2024

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