Yes - there is a fundamental difference for utility contracts for business and domestic properties.
Depending on scale and requirements of your business usage depends on the options and how you might try and solve this - give us an idea of the annual expenditure on utilities and I (or someone else) may be able to point you in the right direction.
There is a whole industry of energy advisors out there who make a living out of this - I am not one of them but I used an organisation 6 months ago to cut costs for a client.