Second Ocean Eco Power Cat Sold ALVA Yachts is a German based yard that builds its yachts in Antalya, Turkey and their Ocean Eco Power catamarans are now starting to resonate with the market. Recent news coming out of this yard is that the second 28-meter hull has been sold. The first one, is sold and expected to be completed in 2023 as it is in the outfitting stage. The second hull is expected to complete towards the end of 2024. The Ocean Eco Power Catamarans come in two variants, an enclosed 'explorer'-style flybridge and the other has an open flybridge only covered by the hard top.