Goods & servicesBattery energy storage systems comprising rechargeable batteries specifically designed for use with solar photovoltaic generators; solar panels for the production of electricity; solar energy collectors for the production of electricity namely, photovoltaic solar panels for the production of electricity, photovoltaic cells also including a solar thermal collector sold as a unit, and photovoltaic solar modules for production of electricity; photovoltaic inverters; power inverters; electrical photovoltaic grid-tie power inverters; chargers for electric accumulators; solar panel charge controllers, namely, programmable controllers and actuators that track the sun enabling concentrating optics to maximize solar energy input, electronic controllers for use with solar power converters, electronic controller to manage the power, movement and functions of photovoltaic solar panels for the production of electricity, and electronic device for monitoring and optimizing photovoltaic arrays.