Utility accounts when sites close, idle or change hands
Closing a plant, idling a line or buying a company changes what a site should pay. The utility account usually does not change with it. Rate classes, reserved capacity, demand ratchets, capacity tags, supply contracts and deposits keep running on the old facts until someone updates them.
Three changes, three ways bills go wrong
Closing or consolidating a site
Meters keep billing customer charges and minimum bills after the last shift. Small meters for signs, gates, lighting and standby service are the ones most often left open. Supply contracts can carry volume commitments for load that no longer exists. See closed-site accounts.
Idling a line or a plant
Demand ratchets and reserved capacity can keep billing against equipment that was removed months ago. In PJM and ERCOT, capacity and transmission charges are set from peak hours of a past summer, so they lag the change by up to a year. See capacity tag errors and ERCOT 4CP.
Buying or selling a company
Accounts stay in the seller's name, bills go to old addresses, and acquired sites fall outside your supply contracts. See utility costs in acquisitions.
What keeps billing after operations change
None of these update because equipment left or a deal closed. Each needs a request, a contract change or a check against the new load.
| Item | Why it keeps billing | What to do |
|---|---|---|
| Customer and minimum charges | Every open account bills its fixed monthly charges whether or not anything runs. | Close accounts you no longer need, in writing, with a final read date. |
| Demand ratchets | Many commercial tariffs bill at least a set share of the highest demand recorded in a prior period, often the last 11 or 12 months. | Read the ratchet terms and ask whether a documented change in load qualifies for relief. |
| Contract or reserved capacity | Large services can reserve capacity the utility built for the site. Reductions usually need a written request and are not backdated. | Ask for the reduction as soon as the equipment comes out. |
| Capacity and transmission tags | In PJM and ERCOT these are set from peak hours of a past summer and apply for a full year. | Budget for the lag, and manage peak hours in the last summer before a line comes out. |
| Supply contracts | Contracts can set expected volumes. Some let you remove a site; others charge for it. | Read the add-and-drop and volume terms before the closure is announced. |
| Deposits | The utility may hold a deposit on the account. | Ask for it back when the account closes. Refund rules vary by state and utility. |
| Rate class | The class was set for the load the site used to have. | Check whether the remaining load qualifies for a different class. |
| Demand response enrollments | A site can stay enrolled in a program it can no longer perform. | Unregister before the next performance season to avoid penalties. |
A closure checklist in three stages
Before equipment comes out
List every account, meter and contract at the site using accounts payable history as well as the facility list. Read the supply contract terms for removing a site. Model ratchets and capacity tags for the next 12 months. Decide which services stay on, such as fire protection, freeze protection and security.
On the disconnect date
Request closures and final reads in writing. Ask for contract or reserved capacity to be reduced. Update the supply contract, ask for deposits back and end demand response enrollments the site can no longer perform.
Ninety days later
Search payables for bills still arriving from the site. Confirm final bills used actual final reads, not estimates. Confirm deposits were returned and the supply contract no longer bills for the site.
Mothball or close: make it a decision
A site kept energized "in case of a restart" pays customer charges, minimums and sometimes reserved capacity every month. A deliberate mothball names the services that stay on, what they cost each month and the date the decision gets reviewed. A closure has a shorter list: final reads, closed accounts, returned deposits and a supply contract that no longer covers the site.
Why nobody catches it
A closed site's bill can be calculated perfectly on an account that should not exist. Accounts payable checks that a bill was approved and paid, not that the site is still open. Operations knows the equipment left, finance knows the cost center closed, and neither owns the utility account. The test is the facility list, not last month's bill.
of a 103-facility company's sites were paying utility late fees every month until audit, procurement and bill pay were brought into one account inventory. Read the case study.
How Discovery checks it
An audit compares your account list with what accounts payable actually paid, so meters for closed, sold and idle sites show up. For sites still running after a change, it rechecks rate class, demand, capacity tags and riders against the new load, then files claims where the utility billed after a documented closure or estimated usage after disconnection.
Utility bill pay and TaraBase reporting keep the account inventory current as sites open, close and change hands, so the next change is caught when it happens rather than at the next audit.