SeaClean Diesel Particulate Filter Reducing Yachting's Carbon Footprint Like sunlight and weather, electrical power is such a normal part of our lives that little thought is given to where it comes from. Yacht owners and crews have a far greater awareness than most of the population ashore but guests might be surprised when they discover the local power station is located literally underfoot. They might also be reminded every time the wind blows or they swim around the boat. Diesel generators are a bit like the human body, they convert chemical energy in fuel (food) into thermal, electrical, and mechanical energy. And like the rest of us, they occasionally produce some unsavory byproducts. In the case of diesel generators those byproducts stain the hull paint, foul the air with bad smells, and surround the yacht with a colorful but embarrassing and illegal sheen of unburned oil speckled with rafts of soot. Dry stack exhausts avoid a few of those issues but make up for it by liberally sprinkling Mrs. Owner and her guests with oily black snowflakes while coloring the mast and antennae with a non-glare shade of charcoal gray. Even the latest computer controlled 500kW Tier IV diesel generators that appear to exhaust only clear hot air may discharge over a pound of soot and other particulates each week. Those “other particulates” are a big part of the problem for yacht owners, crew, and guests. They are composed of unburned hydrocarbon molecules that attach to the carbon core of a soot particle and may exist separately as nano sized droplets of hydrated sulphates that create the eye-watering, stomach turning odor that many people find so offensive.