A process of producing solid surface material is provided with a thin layer of filled polymer integrally formed with a backing of bubble-filled polymer, without an interface or transition zone in the polymer mix, using two-step wet-on-wet casting. At least one zener diode connected in series with a current limiting resistor is connected in parallel to the plurality of battery pack system modules. The process allows to give value to the global energy as generated by the set of these steps to feed an electricity generating system, such as a turboalternator. Another system is comprised of modular pans that are connected to each other to form a larger spill containment system.