Source: Westinghouse Solar, Inc. Westinghouse Solar, Inc., a designer and manufacturer of solar power systems, today announced the release of their second-generation AC solar panel. It looks like they are dropping the price. Westinghouse Solar's new AC panel has been designed from the ground up to meet the needs of residential rooftop installers. Improving on the original patented design, the racking, wiring, grounding and inverter are built into a larger-format 235-watt panel, thereby delivering higher performance and lower installed cost.