Cape & Islands Energy Glossary
This page is intended to provide definitionsand some local spinon terms of relevance to our Energy Present and Energy Future. It represents a work in progress. Got comments? Would you like to suggest a term to be defined? Click here.
Glossary of Terms
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A
Acid Rain
Airfoil represents another name for a turbine blade.
Air Emissions include gaseous and particulate releases from power plants, vehicles, heating systems, and other sources. Generally include nitrogen oxides (NOx), sulfur oxides (SOx), air toxics, volatile organic compounds (VOCs), and other pollutants. Combustion-related emissions also include the world's most important greenhouse gas, carbon dioxide (CO2).
Air Pollution
Air Quality
Air Toxics are pollutants associated with fossil fuel combustion that have adverse ecological effects and pose risks to human health. Mercury represents the most prominent threat in local communities: Lakes and ponds on the Cape and Nantucket are off-limits to fishing due to bioaccumulation of this neurotoxin in top-level predators, and pregnant women and other sensitive populations are urged to limit their consumption of tuna for the same reason.
Aggregation occurs when consumers join together to increase buying power. Cape & Islands Self-Reliance has been running a heating oil cooperative in southeastern Massachusetts for years, with members gaining access to lower-cost fuel through affiliated dealers. Cape and Vineyard electricity consumers in the Cape Light Compact's service territory represent a municipal aggregation.
Aggregators deliver energy services by joining together consumers. The Cape Light Compact is the most prominent local example, providing energy efficiency services and negotiating power supply agreements for municipal consumers, residents, and business consumers on the Cape and Vineyard. Nantucket town meeting recently approved further examination of the potential to create a municipal aggregation. In Marlborough, where municipal electric accounts are already dedicated to a larger aggregation, Colonial Power is forming a municipal aggregation devoted solely to getting a better deai for residential and small business consumers.
Alternative Fuels represent energy sources other than those conventionally used. For electricity generation, alternatives to coal, natural gas, oil, nuclear, and large-scale hydro include solar, wind, bioenergy, ocean energy, and geothermal. For transportation applications, alternatives to gasoline and diesel fuel include ethanol, biodiesel, compressed natural gas, and electricity. For heating applications, alternatives to heating oil, natural gas, coal, wood, and electricity include solar thermal, biodiesel, wood and corn pellets, and geothermal.
Argo Merchant needs no definition for locals who've been around for a while. This is the name of the massive tanker that foundered off Nantucket in the 1970s, spilling millions of gallons and helping set the region's resolve against exploration of offshore oil resources. It is shown in the third image from left within this website's masthead; click on the photo for more information.
Asthma
Attributes are the characteristics of electricity that must be tracked and reported by power plants and other facilities under the provisions of the renewable portfolio standards passed by Massachusetts and other states. Fuel sources and air emissions are two of a number of attributes that are monitored through the New England Generation Information System. "Boutique green" power products are based on renewable energy certificates, which are based on attributes from power generated by solar, wind, hydro, and other green facilities.
Avian Interactions is a term used in the power industry to characterize unhappy intersections between flying birds and spinning turbines, high-voltage lines, or transmission towers. It would represent a technical euphemism for bird kill, but for the fact that it also covers the use of poles, towers, transformers, and wires as perches or nesting sites.
B
Bioaccumulation results from bioconcentration. Helpful, huh?
Bioconcentration occurs when mercury and certain other pollutants associated with fossil fuel combustion enter food chains and accumulate to reach potentially toxic levels in top-level predators. For example, imagine a big fish - a perch - eating a whole lot of medium fish, each of which has eaten a whole lot of small fish, each of which has eaten a whole lot of smaller critters, and so on, to the point where you reach bottom-dwelling organisms that consume sediments and detritus. Their food supply contains mercury deposited from the atmosphere or otherwise present in the environment. When a small predator consumes these organisms, its flesh absorbs the relatively small amount of mercury contained in each individual victim's body, producing a bioconcentration effect. By the time the small predator meets its maker - perhaps a fish, its tissue ends up containing a relatively large amount of mercury. And this mercury ends up in the flesh of larger fish - as does the mercury present in other critters eaten by these fish. By the time all this bioaccumulating mercury reaches the top of the food chain, the predator in which it resides may represent a hazardous waste unfit for human consumption. A number of ponds and lakes on Nantucket and Cape Cod are contaminated by mercury, as evidenced by fish consumption advisories posted by the state. Pregnant women and other sensitive populations are urged to limit their consumption of tuna for the same reason.
Bioenergy
Biodiesel
Biofuels
Biomass
Blackout is the term used to denote anything more than a momentary power outage, regardless of what time of day electrical service is interrupted. As "wires" companies serving local communities, NStar and National Grid are responsible for turning the lights back on when the power goes out.
Blades are the turbine components that spin in the face of wind, water, compressed air, steam, combustion gases, and other fluids, turning a rotor to drive an electrical generator.
Bouchard Oil attracted lots of attention when one of its barges sprung a leak due to operator negligence, spilling tens of thousands of oil in Buzzards Bay.
Brayton Point Station has a dubious distinction among all the power plants in New England: It produces the most pollution. This 1599-MW plant is also the largest fossil-fired facility, running largely on coal. It is located in Somerset on Mt. Hope Bay at the head of Narragansett Bay. Every day, its smokestacks introduce hundreds of thousands of pounds of pollution into the atmosphere just upwind of the Cape & Islands region. The plant is also renowned for its thermal releases - the U.S. Environmental Protection Agency has determined that the heated water released from this facility's cooling towers is ruining habitat and harming wildlife. The plant is owned by a subsidiary of Dominion, one of the largest electricity generators in the country. Another subsidiary, Dominion Retail, began selling power to Cape and Vineyard consumers in spring 2006.
Broker
C
Cable
Canal Generating Station
Capacity
Capacity Factor
Cape & Islands Renewable Energy Collaborative (CIREC)
Cape Cod Commission
Cape Downwinders
Cape Light Compact (CLC)
Carbon Dioxide (CO2)
Carbon Efficiency
Carbon Intensity
Carbon Neutral
Carbon Pricing
Cardiovascular Disease
Clean
Cleaner
Climate Change
Coal
Cogeneration
Combustion
Combustion By-Products
Commonwealth Electric
Competition
Competitive power supplier
ConEdison Solutions
Conservation
Consumer
Consumption
Contract Path
Control Center
Cooling
Credits
Customer Migration
D
Decarbonization
Deepwater Wind
Default Service
Delivery
Delivery Service
Demand
Deregulation
Diesel
Dino-diesel
Disclosure Label
Distributed Generation
Distribution
Distribution Company
Direct Costs
Dirty Electrons
Dirty Power
Dominion
E
Efficiency
Electric Utility Restructuring Act of 1997
Electricity
Electricity Market
Electrons
Emergency Management Zone (EMZ)
Emissions
Energy Broker
Energy Commodity
Energy Conservation
Energy Conservation Charge
Energy Disclosure Label
Energy Economy
Energy Efficiency
Energy Footprint
Energy Present
Energy Future
Energy Marketer
Energy Supplier
Energy Sustainability
Entergy
Externality
Externalized costs
F
Facts
Fish Consumption Advisory
Fixed Pricing
Fossil Fuels
Fossil Plants
Fuel Oil
Fuel Cell
Fuels
G
Gasoline
Generation
Generation Attributes
Generation Information System (GIS)
Generation Service
Geothermal Energy
Gigawatt (GW)
Global Climate Change
Global Warming
Green Buildings
Green Design
Green Electrons
Green Energy
Green Homes
Greenhouse Effect
Greenhouse Gas
Green Power
GreenUp Program
Grid
Grid-Connected, Grid-Tied
H
Haze
Health Effects
Hummer
Hybrid
Hydroelectric Plants
Hydrogen
I
Independent System Operator (ISO)
Ingestion Zone (IZ)
In-Stream Hydro
In-Stream Tidal
ISO New England (ISO NE)
Indirect Costs
Infrastructure
Integrated Infrastructure
J
Jet Fuel
K
Keyspan
Kilowatt (kW)
Kilowatt-hour (kWh)
L
Landfill Gas
Land-Based Wind
Light-Emitting Diode (LED)
Locational Marginal Pricing (LMP)
M
Massachusetts Department of Energy Resources (DOER)
Massachusetts Department of Telecommunications & Energy (DTE)
Massachusetts Technology Collaborative (MTC)
Megawatt (MW)
Mercury
Methane
Microturbine
Mirant
Monopoly
Multimedia Emissions
Municipal Utility
Municipal Waste
N
Nacelle
Nantucket Electric
National Grid
Natural Gas
New England Electricity Marketplace
New England Power Pool (NEPOOL)
Nitrogen Oxides (NOx)
No. 6 Fuel Oil
NStar
Nuclear Plants
Nutrient Enrichment
O
Ocean Energy
Ocean Thermal Energy
Off-the-Grid
Offshore Wind
Outages
P
Particulate Matter
Physical Path
Pilgrim Nuclear Station
Portfolio
Potassium Iodide (KI)
Power Cable
Power Delivery
Power Delivery Services
Power Grid
Power Line
Power Market
Power Plant
Power Supplier
Propane
Q
R
Radioactivity
Rated Capacity
Refuse
Renewable Energy
Renewable Energy Charge
Renewable Energy Credits (RECs)
Renewable Energy Trust Fund
Renewable Portfolio Standard (RPS)
Respiratory Illness
Retail Market
S
Service Territory
Small Hydro
Smog
Solar Energy
Solar Photovoltaic
Solar Thermal
Southeastern Massachusetts (SEMA) Locational Marginal Pricing Zone
(SEMA LMP)
Standard Offer
Sulfur Dioxide (SO2)
Sulfur Oxides (SOx)
Supplier
Supply Portfolio
Sustainability
Sustainable Energy
T
Tailpipe of the Nation
Thyroid Gland
Tidal Current Technology
Tidal Energy
Toxics Release Inventory
Transition Charge
Trash
Transmission
True Costs
Turbine
U
Undergrounding
Undersea Cable
Utility
U.S. Energy Information Administration (EIA)
U.S. Environmental Protection Agency (EPA)
U.S. Nuclear Regulatory Commission (NRC)
V
Variable Pricing
Visions
Volatility
W
Waste-to-Energy
Water Quality
Watt (W)
Wave Energy
Wholesale Market
Wind Energy
Wind Power
Wind Turbine
Wires Company
X
Y
Z
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