We realize you want to ensure you have power without breaking the bank. You can’t always plan for an emergency, but planning could save your business lots of money in terms of lost inventory and downtime. We encourage you to check our specials from time to time. A small (7kw) generator could cost as little as $6k and a large 24kw generator could cost between $10-20k (gas work not included). There are many variables when pricing a generator, but the main expenses are the generator itself, the condition of the electrical system, the proximity of the generator and the electrical service, and the gas upgrade requirements.