The US, and the rest of the world, is facing the challenge of climate change and thinking of the related dangers and solutions. With solar energy becoming cheaper and cheaper, and the state authorities offering tax credits and other incentives, now may be the right time to install solar panels. According to some experts, installing solar panels on the roof of a house has some obvious environmental benefits and can make people save money on electric bills. An average, 5-kilowatt system costs about $15,000/20,000, depending on where someone lives and if there is any incentive; in any case, the federalgovernment offers a 30% tax credit and has created some lists with all the policies for renewable energy by state so as to get the information a citizen needs. Some states, such as California, have created websites listing incentives, financing options, and tips so as to hire a contractor and install the panels; a good contractor is crucial since a trustworthy installer secures the necessary permits and properly connects the solar energy system to the house and the local electric grid. In terms of payment for the equipment and services, a citizen may pay upfront and enjoy its system for the following 20 years. As a owner, he may get a bonus incentive if the state allows him to sell the excess solar electricity to his utility; the money earned shows up as a credit on the bills. On the contrary, the alternative option is to leave the ownership and maintenance of the panels to the installer and pay only for the electricity produced. The gLAWcal Team POREEN project Thursday, 2 March 2017 (source: The Guardian)