Electricity generation from photovoltaic panels is one of the fastest growing technologies in the world in recent years. And the future promises more. For some years now, various initiatives have been developed to use transparent cells, which can be used as windows in different types of buildings, to generate electricity. One of the most promising technologies along these lines is the transparent solar luminescent concentrators (TLSC) developed by the University of Michigan, which can be tuned to absorb ultraviolet and near-infrared waves to generate enough electricity to power part of a building's lighting and small appliances. Other similar projects are those of Italian state-owned oil company ENI, developed in conjunction with MIT, and Australia's ClearVue, both of which are looking to enter the market. The technology is in its early stages and research is currently focused on achieving greater efficiency in the conversion of light into electricity.