Decide on the means of reserving solar energy best suited for you. Let factors such as availability of materials and scale of production influence your decision on the same. Some of the choices available to you include photovoltaic systems, Fresnel lenses (a special kind of lenses that appear corrugated) used together with a system of black piping and power towers that work in a similar manner to thermo flasks.
Use photovoltaic systems to reserve energy in small scales. They are a means of converting light energy from the sun into electricity using photovoltaic cells for small-scale use in homes and small industries. The best way to store solar energy through these systems is by the use of batteries connected to the system. Most photovoltaic systems are do-it-yourself, making installing one -- including batteries for reserving solar energy -- an easy task.
Build "power towers" to help store the sun's heat energy. Research shows that storing energy from the sun in the form of heat is much easier and cheaper than storing electricity generated from it. Power towers use this concept to reserve energy from the sun. They are large tower tanks designed in a similar manner as thermo flasks surrounded with mirrors that concentrate the sun's heat to them. Inside the tank are molten salts that store the heat, coupled with heat exchangers that channel the heat to generate steam from water that drives electricity-generating turbines.
Put in place a system of black pipes with Fresnel lenses over them that concentrate the sun's heat onto them. Fill the pipes with fluids, such as water, for the concentrated heat energy to heat and turn into steam that will in turn drive electrical-generating turbines. Molten salt can pass through the pipes instead of water, and later on be used to generate steam to turn turbines.