** We mine Bitcoin on 100% renewable energy and turn miners’ waste heat into a food-rescue engine. Co-located solar and wind power the farm; controlled exhaust air (about 45–60 °C) feeds hygienic drying tunnels that transform cosmetically imperfect or near-expiry fruit from major retailers into shelf-stable, high-value products. Long-term partnerships secure low-cost supply and cut retailers’ waste toward zero. Each kilowatt-hour earns twice—first as hashrate (BTC), then as low-grade process heat—delivering profit and impact aligned with SDGs 7, 8, and 12. Daily unit economics per miner are clear: a typical unit draws ~3.5 kW, producing ~84 kWh/day of usable heat. With ~5 kWh to dry one kilogram of fruit, that yields ~17 kg/day. At €14/kg selling price and ~€4.8/kg COGS (rescue fruit, labor, packaging, logistics, QA, auxiliary energy), margin is ~€9/kg—about €155/day. Bitcoin adds ~€10–€15/day, for ~€165–€170 per miner, before depreciation and financing. Solar plus wind reduce grid purchases; a small battery smooths short lulls. At scale (40 miners), output is ~672 kg/day with ~€6.6–€6.8k/day in margin pre-overheads. Go-to-market is dual track: private label for retailers/food manufacturers (fast volume), and our own dried-fruit brand with two label families: an “Energy-Friendly” line (clean design, sustainability badges, no added sugar) and a “Crypto Culture” line using playful, meme-coin/crypto-inspired visuals (collectible stickers, QR codes to educational pages) to engage teens and young adults—without promoting trading or speculation—both HACCP/BRC-certified with full traceability.

Problem ** Retailers waste large volumes of edible fruit because it’s cosmetically imperfect or near expiry—destroying value and clashing with sustainability targets. Meanwhile, most green electricity is used once and its energy becomes waste heat; when sun/wind peak, clean power is even curtailed. Solution We sign long-term partnerships with major retailers to buy near-expiry/off-spec fruit at low cost, turning their waste into our feedstock. Co-located PV + wind power a high-efficiency mining hall; we capture miner exhaust air (≈45–60 °C) to run hygienic, humidity-controlled dryers that convert surplus fruit into shelf-stable, high-value products. Each kWh is monetized twice—first as hashrate (BTC), then as process heat—using a small battery to smooth short lulls. This cuts retailers’ waste toward zero, lowers our raw-material cost, and uses green energy far more efficiently than mining alone.