Photovoltaic panels installed for your own use

Technically, yes, you can install solar panels on your own – but we strongly discourage you from doing so, unless you’re a certified installer. [pdf]

Use of wind turbine generator set

Horizontal-axis wind turbines (HAWTs) are the most common and efficient type of wind turbine. They typically have three blades and operate "upwind", which means that the blades face into the wind. This is becau. . As the name suggests, vertical-axiswind turbines (VAWTs) have a vertical rotor shaft, and their. . The construction process is complicated and requires both coordination and precision. The assorted components are manufactured and then transported to the site. First, the to. [pdf]