Diesel generators are still widely used as power sources; they range from small size of less than 1KW to large size of 500KW or more.

Customized silencers can meet very low noise level requirement, and can be containerized as 20′ or 40′ to facilitate the shipping by sea.

Engines and alternators can be Chinese brands or imported brands such as Cummins or Perkins engines and Stamford or Leroy Somer as Alternators.