TUTTA LA VERITÀ SULL'ENERGIA EOLICA

1 Nov 2022 · 14 min
14:08

YouTube video (TUTTA LA VERITÀ SULL'ENERGIA EOLICA) by Jacopo D'Alesio (Jakidale) filmed near Trapani, Sicily. The presenter, with Filippo (site technician) and partner companies (Asia, Palsy/Axpo Italia sponsor), tours an onshore wind farm, explaining turbine components (tower ~50 m, blades ~25 m), operation (pitch, yaw, braking), electrical chain (generator ~50 Hz at ~690 V, generator speed ~1051 rpm, production ~95–100 kW observed), and grid connection (internal transformer stepping ~600 V to ~20 kV). The video covers wind energy history, design principles (Betz limit 59.3%; real-world 40–50%), reasons for three blades and airfoil profiles, siting/campaign anemometric surveys (2–3 years), performance trends (5–10% annual improvement), costs (≈€1–5–6M per turbine depending on power), nominal capacity examples (this machine ~850 kW peak), minimal cut-in wind (~3 m/s), construction times (foundation ~30 days; ~1 year for a ~30 MW project), useful life (~20+ years), and global/regional data (Denmark ~47% annual from wind; Denmark can produce 140% peak; China 655.6 TWh in 2021 = 35.2% of global wind; world wind 2021 ≈1900 TWh; world consumption ≈160,000 TWh; Italy ≈6% from wind). Sponsor mention: Palsy/Axpo Italy with promo code YAKI200.

Questions this video answers

Near Trapani, Sicily.

About 50 metres.

About 25 metres (diameter ~50 m).

50 Hz, approximately 690 V.

About 1051 rpm.

Chapters

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