Marblehead Municipal Light Department "Owned by the People We Serve!"
The mission of Marblehead Municipal Light Department (MMLD) is to provide reliable power as we work towards a goal of a carbon free portfolio, while maintaining competitive rates in a safe working environment for MMLD employees and its customers.
Since 1894 when town voted to authorize the formation of its own municipal light department, MMLD has been providing modern electric power to the citizens and businesses of Marblehead. Many upgrades have been instituted over the years, including the latest Smart Meter technology, downtown underground utilities, substation construction and much more. Read more here.
MMLD's Light Commission, our governing body, holds regularly scheduled meetings in the Conference Room at Commercial St. Dates and times of the meetings are posted on our website.
Learn More About MMLD
Joe Kowalik leads the Light Department’s Management Group in our mission to provide reliable, cost-effective electric service for the customers of MMLD, while providing a safe work environment for our employees.
Bill helps oversee the daily operations of the Light Department. Bill's other duties include management of all the electrical operational functions including installation, maintenance, construction and extensions of lines for our electrical distribution system.
Our Manager of Finance is responsible for all monitoring, preparation and reporting of the financial functions of the Light Department, as well as the operation and maintenance of MMLD's customer information system.
Colin is our Manager of Technical Operations. He helps support the day-to-day operations within the Light Department, which can include substation operations, metering, and distribution engineering.
Marblehead Municipal Light Department is governed by a Light Commission whose members are elected by the town's citizens. They are sworn to uphold and always operate in the town's and its citizens' best interests.
Michael A. Hull, Chairman
Walter E. Homan, Commissioner
Karl A. Johnson, Commissioner
Lisa Wolf, Commissioner
Simon Frechette, Commissioner
Cheryl is responsible for daily office communications, administration and Operations Dept accounting. She also provides support to the General Manager and Finance Department.
Didi oversees the daily operations of MMLD's Meter Department. She also maintains the Light Department's AMI system, our integrated network of smart meters.
Megan fields and responds to our customer service inquiries, energy services and keeps our website up-to-date.
Nate monitors the daily operations of MMLD's Meter Department, and maintains the Light Department's AMI system, our integrated network of smart meters.
Check out our FAQs Page...or give us a call during Business Hours at (781) 631-5600.
Get the FAQs
In Emergencies, please call (781) 631-0240. Call 911 if your report involves safety or imminent threat to the public.
Your Marblehead Electric Bill from Top to Bottom
Here's a comprehensive collection of questions you might have... from the top of your bill to the bottom. Remember, you can also visit, email or call us at (781) 631-5600 during regular business hours.
This is the unique account number assigned to you for this specific location. Your account number is used for billing purposes. It allows us to access information pertaining to your account in our computer system.
This date is the date that the current charges are due.
This is the date that this months bill was actually billed out. This is NOT the reading date.
These dates show the date of the current meter reading and that of the previous reading.
The number of days in this area are reflective of the total number of days within your reading period. Pay careful attention to this field, as it can vary from month to month resulting in some fluctuation in your bills. If you had a meter changed out at your location sometime during this months reading period, this figure will only show for the number of days the new meter has been in place. However, the usage will be for the total of the two meters between the two reading dates.
The difference between your current meter reading and your previous meter reading determines your usage. Electric usage is measured in kilowatt hours (kWh). The usage is then multiplied by the rate per kwh to determine a cost for the electricity used. This total is shown in the summary column.
The figure shown here is for all payments/credits applied to your account since your last billing.
This tells you that there is currently a balance due prior to this billing. This can either be a previous bill that has not been paid or a portion of a partially paid bill.
Kilo Watt. The peak usage of real power over one 15-minute interval each month.
The power cost adjustment is used to compensate for the fluctuating cost that we pay for power. Your PPA charge or credit (-) is calculated by multiplying the usage figure by the current month’s PPA rate. The PPA can be adjusted monthly and is directly impacted by the cost of gas and oil, the fossil fuels used in the generation of electricity. The Purchase Power Adjustment is based on the best estimates available for what it will cost to purchase and generate power from month to month.
The minimum amount that will be charged for the month, even if there is no usage, and will be based upon customer class and the rate in effect at the time.
The calculated power supply cost savings to the Department from its allocation of hydroelectric power from the Power Authority of New York (NYPA) shall be credited to residential customers as governed by Federal and State regulations. The savings per household shall be known as “Hydro Credit” item on the bill.
Heating degree days are indicators of household energy consumption for space heating. It was found that for an average outdoor temperature of 65 degrees Fahrenheit, most buildings require heat to maintain a 70 degree temperature inside. Similarly, for an average outdoor temperature of 65 degrees or more, most buildings require air-conditioning to maintain a 70 degree temperature inside.
Take the high and low temperature for the day, and average them. If this number is greater than 65 F, then we have (Average temperature -65) cooling degree days. If the average temperature is less than 65 degrees, then we have (65 – Average temperature) heating degree days. Running totals are kept for these units over a period of a year so fuel distributors and power companies can assess average demands.