One of the most important things to remember is to make sure that the panel is mounted on an adjustable frame so as to maximise the 'impact' of the sun's rays. Some have calculated that laying the panel flat reduces the output, which is NEVER that great, by as much as 60%. The lumpy water boys and girls are finding this out to there cost as many blue sea sailors have bought the very costly stick on, flexible panels and are very disappointed.
Jim
