Usually the sun not shining means higher wind speeds, not necessarily at the same location. In general a larger grid means less overhead is required. HVDC is te

Usually the sun not shining means higher wind speeds, not necessarily at the same location. In general a larger grid means less overhead is required. HVDC is tested and proven, UHVDC links are also being constructed now https://en.wikipedia.org/wiki/High-voltage_direct_current https://en.wikipedia.org/wiki/High-voltage_direct_current