These homeowners chose to install a photovoltaic system for three reasons: the tax credits and rebates made it affordable, the desire to "fix" their electric bill for retirement, and to do the right thing for the Earth. What they like most about their new system is that it creates electricity for their home, and they can monitor the system's production from the Web. They chose to work with TFS, because TFS is a "local company with pleasant, competent people."