Relative to utility grid applications, economies of scale are significantly lower for most industrial applications, especially those of the size associated with the poultry industry, such as meat processing and rendering plants. Operating and maintenance costs per unit of production often are affected even more adversely than equipment costs, by small economies of scale. In some cases, smaller economies of scale for industrial applications may be offset to some extent by using modules that are factory built, easily transported, and designed for “plug and play” operation.