Net Metering F.A.Q.s
- What is net metering?
Net metering is a method of metering the energy delivered
by Choptank Electric and metering the excess energy produced
at a residence or place of business that has a generator
driven by a renewable resource.
Read the Net Metering Rate Tariff. ( 23 KB)
- What is a renewable resource?
Under current Maryland law, solar (photovoltaic), wind,
combined heat and power (CHP), or biomass qualify as
renewable power sources for generators that produce
- What is biomass?
Biomass is a term for a non-hazardous, organic material
that is available on a renewable or recurring basis. Materials
from a lumber mill or vineyard and animal waste are
qualifying materials which can be put through a process
to use as a fuel for electric generation.
- What is CHP (combined heat and power)?
CHP is a process in which there is simultaneous or
sequential production of useful thermal energy, such as to
make hot water for a laundry, and electrical or mechanical
power (to run that laundry.) The CHP cannot exceed 30 KW.
- Are all net meters the same?
Choptank tries to use the same type meter for each
installation, which is a bi-directional meter which measures
and displays the amount of electric flowing in either
direction. Other utilities handle the net metering issue
in various ways, with a host of metering options.
- What are the benefits of net metering?
The chief benefit belongs to the owner of the generation.
They will receive a credit for excess energy fed into the
Choptank infrastructure. This credit will help offset the
cost of the generator.
- How much is the credit?
The amount of the credit is directly related to the amount
of electricity fed to Choptank's system. The number of
kilowatt hours multiplied by the current generation, power
cost adjustment and transmission charges located on the
right side of your bill can be used to determine credit
- What does a net meter cost?
By law, there is no additional cost to the member for
needing, requesting and installing a net meter.
- Will my bill be different?
No, the only difference would be a line item showing
negative energy (kwh) use if excess energy was fed to
Choptank's system during that billing period. Net metering
does not affect the other billing components such as, but
not limited to, demand charges, consumer charges or power
- When do I need to notify Choptank that I need a
bi-directional, net energy meter?
Choptank would like as much notice as possible to insure
we have the proper metering in stock so it can be in place
as soon as your generator is on line. Your installer should
be able to give you a time frame once you have made the
decision to go forward with the project. Typically three
weeks is sufficient.
- What do I need to provide to Choptank before the net meter
Based on the size of the system, Level 1, 2, 3, or 4, must
be completed and filed. In most cases a Level 1 or 2 will
be sufficient. A site visit may also be required, because
the unit must have an automatic switch that disconnects the
generator from Choptank's grid if there is a power outage.
This must be in place to conform with Maryland law.
- What level application do I complete?
A Level 1 Application is used for systems under 10 KW capacity.
Use the Level 2 Application for systems 10 to 2000 KW with
lab certified interconnection interconnect equipment. Levels
3 and 4 are for larger more complex interconnect requests.
Level One Interconnection Application ( 238 KB)
Level Two through Level Four Interconnection Application ( 202 KB)
- What is the certificate of completion?
Notifies Choptank that the renewable generation source is
ready to generate power to the grid. Also provides utility
interconnect confirmation to the State for various tax
rebates and renewable energy credits.
- Who do I need to contact at the co-op?
Call the Choptank Customer Service Center, 1-877-892-0001
and tell the customer service representative you need a net
meter installation and they will transfer you to the
appropriate co-op staff person.
Net Metering Requirements
Interconnected generating equipment utilizing inverters must
be compliant with IEEE 1547 and UL 1741. All interconnected
generating equipment must automatically and immediately cease
interconnection with Choptank upon and during power interruption
By signing the application, the member certifies that the
installed generating equipment meets the preceding requirements
and any other electrical/building code requirements by the
Authority Having Jurisdiction. If installation of generating
equipment requires electric service disconnect, an electrical
inspection will be required prior to service being restored.
Other Energy Articles
Choptank Electric Cooperative, Inc., P.O. Box 430, Denton MD 21629
Toll Free: 877-892-0001