When I brought my solar system down The duties were 5 - 12.5 - 2 just as TravelinMan 1 said. The dealer I used was in San Diego and they shipped everything thru Hyde Shipping in Miami. Most of the stuff was shipped directly from the manufacturer so the dealer you buy from doesn't make much difference. You will have to pay duties on the shipping as well. Most dealers will help you with sizing your system. a big factor in the system is the number of batteries necessary. I use a combination of wind and solar. Depending on what you are running at any one time will determine how much solar you'll need. I don't have any AC which draws lots of power. Your inverter will also need to be sized correctly for the amount of power you want to pull from the system. My inverter is a 4000 watt system which means the max I can draw at any time is 4000 watts. Thats more than enough for lights, frig, water pump. But my stove draws 7000 watts so I can only use 2 burners at a time before the system shuts down. An AC unit can also use 1500 watts and thats a continuos draw. When sizing your system you need to be very selective of the appliances you buy. The stove will go next time I'm down, to be replaced by a gas model. All the lights are energy savers and the frig is the most efficient I could buy in the States. You have a better selection of frigs in the states than in Belize. The first frig I had used about 3 times the wattage that my current one uses. Design the system and appliances carefully and solar works ok, design it badly and its a not good. A good magazine to look thru is Home Power. Also remember that in Belize they don't allow you to sell back to the grid so even if you are on the grid you'll need to use batteries. The grid doesn't go near my house so I have to use batteries. It also means I have paid my last utility bills which also feels good.