True sine wave inverters are usually less efficient than modified sine wave inverters. Overall efficiency may be similar due to the energy lost in the harmonics of a modified sine wave, especially when running motor loads. Generators Generators and inverters are an ideal match. An inverter operates small loads like lights and computers more efficiently than a generator. Large, intermittent loads like pumps, power tools and microwaves are also perfect for an inverter, but expensive to operate with a generator.
Small jobs are tough on a generator.
Running diesel generators under low load causes excessive carbon build-up on valves, shortening the generator s life. A generator drinks almost as much fuel for light duty as it does for heavy duty. Copyright 2000 Energy Alternatives Ltd.