The large size is for installation on the ground or on a very strong roof. It should have a permit and installation design from a civil engineer and your local zoning board. If you intend to install it on the ground, consider ordering our water-weighted bases instead of pouring concrete into the ground. Standard color of the blades is white inside and outside. Please see spec sheets on the information page or at www.flowerturbines.com/customers for details.
Batteries not included. Batteries should be 120 volts.
This turbine system choice is made for connecting to batteries in a case where you already have a battery system and inverter.