Another problem that solar energy systems would encounter would be the integration and retro-fitting of these solar energy systems to the different houses and structures that are already constructed without any solar energy system incorporated in them. Solar Energy in the Future The future of solar energy appears to be gearing towards the better, especially since there are a lot of research and developments that are being done by different researchers and scientists, all focused on finding ways to improve alternative energy systems and technology. Passive solar energy does not require the use of mechanical devices and provides you the advantage of getting energy nonstop and in a more cost-effective manner. Passive solar energy is further divided into different categories. Here are some more tips and guidelines on the kind. On Orientation There are a number of principles that you have to keep in mind to take advantage of passive solar energy fully. Light from the sun is considered as a renewable energy resource that gives clean energy. Solar panels can be used for different applications like remote power systems for cabins, remote sensing, telecommunications equipment and to produce electricity for commercial and residential panel systems. The History The development of the solar energy began more than a century ago. The bigger arrays can create more than 2 kilowatts or 2.6 hp of power. The solar array can be installed in various ways. Horizontal arrays can be installed in the form of a free canopy. Vertical arrays can be in the form of integrated sails or free standing to get the wind energy. Adjustable solar arrays can be tilted around the travel axis to boost power when the sun is low and to the side. Pumps, for example, are used in active solar energy water heating systems to circulate the water through the system. There are plenty of solar applications that a homeowner can use to get the most out of active solar energy. Included are active solar space heating, active solar pool heating and active solar water heating. Orbital solar power collection also avoids the intermittent use, although satellite launching and beaming of the gathered power are required to get antennas on Earth. The enhanced intensity of the sunlight over the atmosphere also tends to boost the generation efficiency. About Solar Energy Solar energy, heat and radiant light that emanates from the sun have been controlled by humans beginning the ancient periods using a wide range of evolving technologies.