Abstract: The invention is an environmentally friendly anti-theft security cage for outdoor air conditioner/heat pump units conceived to prevent the vandalism and theft of copper tubing from the unit and to recycle energy waste from the units protected. In addition to protecting the units from vandalism, the security cage is equipped with wind-powered generator(s) positioned to utilize the exhaust from the enclosed air conditioner/heat pump units to generate electricity. Single or multiple generators may be utilized dependent upon the capacity and number of air conditioner/heat pump units enclosed. The cage is also equipped with anti-tamper sensors connected to a microprocessor to provide an alarm system to discourage thieves.