We visited Bodegas Ysios yesterday and were thoroughly impressed by the waveform roof, interior wood structure and finish, daylighting, and external shading from the roof overhangs. The interior barrel room is kept at 16C and 85% RH 24/7 for the wooden barrels which are used for aging the wine. Although we didn't see the hvac systems, we were told the control logic has helped to significantly reduce energy consumption in the building. The only lights on were by the sales desk and enclosed office and restroom - everywhere else including the barrel room, which is 60 feet from the exterior windows, were 100% daylit. And the wine wasn't half bad.