Beware of Vampire Power!

Vampire power is created by any appliance that continues to draw power when not in use, which, in the typical home, includes dozens of appliances ranging from the clock radio on your night stand to the computer in your home office.  A couple of watts here, a couple of watts there are sucked away 24 hours a day, 365 days a year.  Seem scary?………it could be!!!

Some household appliances are sneaky and draw power even when they are shut off. The source of that drain has been given any number of derogatory names, from vampire power to wall wart to phantom load.  And like all vampires, this villain goes without notice -- until the electricity bill arrives at the end of the month.

Vampire power can best be spotted at night. Turn off all the lights and look around your home. Every appliance marked by an LED light, or anything else that glows, is drawing electricity.   Not everything that leads to vampire power can be seen in the dark, however.  Some must be felt. Cell phone chargers, for example, draw electricity when they are plugged in, whether they are connected to the phone or not.

Uncertain whether an appliance is drawing electricity?  Try laying your hands on it.  If it's an electrical item that's warm to the touch, it's using energy.  Anything that must be reset after a power failure, or anything that operates by remote control (e.g., televisions, VCRs, etc.) draws electricity even when they are turned off.  Even your doorbell is indirectly nickel-and-diming your electric bill.

Not all vampire power can be eliminated.  For starters, smoke and carbon monoxide detectors draw vampire power but provide life-saving service.  And although not a matter of life or death, unplugging other phantoms is not very practical.  Most of us wouldn’t think of cutting the power to our alarm clocks and then resetting them before bed each night.  So even though not all vampire power is bad, we tend to forget about it and the energy/ consumes.  

The good news is that there are ways to stop being haunted by vampire power.

First, identify which electronic devices drain power when not in use, then unplug those that are turned off.  And a very easy way to cut all power to multiple appliances at one time with one flip of the switch is use a surge protector or power strip.  Finally, when it is time to replace an electronic device, look for energy efficient models that waste less energy.   So get ready to pick up your stake and take a stab at saving energy and money.

125 High Street; Unit # 1
Mansfield, MA 02048


Call 508-261-7300 to reach Mansfield Police Dispatch, they will notify the on-call Lineman.

Office 508-261-7361
Office Fax 508-261-7391
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Net Metering Update - June 14, 2017

On June 5, 2017, the Board of Light Commissioners voted to approve a new Net Metering rate tariff (MDPU 147) effectively lifting the previously adopted cap on any new solar installations for MMED customers.  This new tariff goes into effect July 01, 2017.

Prospective solar customers must submit an application to get Preliminary approval.  Once authorized, a customer will have six months to install and have the system approved for Final Acceptance of the solar array for the net metering program.  Please contact Chris Cox at 508-261-7361 for complete details.

Net Metering Rate 147

Interconnection Service Application

Interconnection Agreement (sample)

Purchase Power Agreement (sample)

Customers already receiving net metering service under the Department's Net Metering rate MDPU 134 will continue to receive service under that tariff, which is closed to new customers as of July 01, 2017 (effective date of the new tariff).