Energy terms starting with M

155 terms

101. Mill residue Wood and bark residues produced in processing logs into lumber, plywood, and paper.
102. Mill/kWh A common method of pricing electricity. Tenths of a cent per kilowatt hour.
103. Milligauss (mG) A unit of measure for magnetic fields.
104. Millsite mining claim Claim on nonmineral land for processing ore from a mining claim.
105. Mineral A nutrient required to maintain health.
106. Mineral Leasing Act of 1920 (MLA) Authorizes the agency to issue rights-of-way grants for oil and gas gathering and distribution pipelines and related facilities not already authorized…
107. Mineral materials Widespread deposits of common clay, sand, gravel, or stone which are not subject to disposal under the 1872 Mining Law, as amended.
108. Mining claim That portion of the public mineral lands which a miner, for mining purposes, takes and holds in accordance with the mining laws.
109. Mining water use Water use during quarrying rocks and extracting minerals from the land.
110. Minority Carrier A current carrier, either an electron or a hole, that is in the minority in a specific layer of a semiconductor material; the diffusion of minority…
111. Minority Carrier Lifetime The average time a minority carrier exists before recombination.
112. Minority population Includes Hispanic, American Indian, or Alaskan Native; Asian; Native Hawaiian or Other Pacific Islander; Black (not of Hispanic origin) or African…
113. Miocene An epoch of the upper Tertiary period, 23 to 5.3 million years ago.
114. Mirror A reflecting surface of various physical shapes (parabolic, nearly flat, or flat) used to reflect and/or concentrate the sun's energy to specific…
115. Mitigation Term usually used to refer to various changes or improvements made in a home; for instance, to reduce the average level of radon.
116. Mitigation (measures) Methods or actions that will reduce adverse impacts from solar facility development.
117. Mixed Use Development Development that is created in response to patterns of separate uses that are typical in suburban areas necessitating reliance on cars.
118. Mixing Valve A valve operated by a thermostat that can be installed in solar water heating systems to mix cold water with water from the collector loop to maintain a…
119. MMBF One million board feet.
120. MMBtu One million British thermal units.
121. Modal Split A term that describes how many people use alternative forms of transportation. Frequently used to describe the percentage of people using private…
122. Modified Degree-Day Method A method used to estimate building heating loads by assuming that heat loss and gain is proportional to the equivalent heat-loss coefficient for the…
123. module The smallest self-contained, environmentally protected structure housing interconnected photovoltaic cells and providing a single dc electrical output…
124. Moisture The amount of water and other components present in the biomass sample that are volatilized at 105°C. (Source: Ehrman, T.
125. Moisture Content The water content of a substance (a solid fuel) as measured under specified conditions being the: Dry Basis, which equals the weight of the wet sample…
126. Moisture Content (MC) The weight of the water contained in wood, usually expressed as a percentage of weight, either oven-dry or as received.
127. Moisture content, dry basis (MCDB) Moisture content expressed as a percentage of the weight of oven-dry wood. weight of wet sample - weight of dry sample…
128. Moisture content, wet basis (MCWB) Moisture content expressed as a percentage of the weight of wood as-received. Expressed as: weight of wet sample - weight of dry sample…
129. Moisture Control The process of controlling indoor moisture levels and condensation.
130. moisture free basis Biomass composition and chemical analysis data is typically reported on a moisture free or dry weight basis.
131. Molten salts Mixtures of sodium nitrate and potassium nitrate in various proportions that are used as a heat transfer or heat storage medium in CSP Solar Energy…
132. Monoculture The agricultural practice of cultivating crops consisting of genetically similar organisms.
133. Monolithic Fabricated as a single structure.
134. monosaccharide A simple sugar (e.g. glucose, fructose). See:.
135. Montane The highland area located below the subalpine zone. Montane regions generally have cooler temperatures, and often have higher rainfall than the adjacent…
136. Mortality The state of being mortal (destined to die). Mortality also refers to the death rate, or the number of deaths in a certain group of people in a certain…
137. Mortar A stone bowl or bowl-shaped depression (such as in a rock) in which seeds, berries, nuts, meats, and other items are ground or pulverized with a pestle…
138. Mosses Low-growing, nonvascular plants that are common to moist habitats.
139. Mothballed capacity A power plant that is out-of-service, but is being maintained in such a condition that an operator can bring it back into service.
140. Motor In medicine, having to do with the movement of body parts.
141. Motor Speed The number of revolutions that the motor turns in a given time period (i.e. revolutions per minute, rpm).
142. Movable Insulation A device that reduces heat loss at night and during cloudy periods and heat gain during the day in warm weather.
143. mscf One thousand standard cubic feet.
144. MTBE Methyl Tertiary Butyl Ether (MTBE) is an ether compound used as a gasoline blending component to raise the oxygen content of gasoline.
145. MTC (Massachusetts Technology Collaborative) MTC is the state's quasi-public development agency for renewable energy and the innovation economy, which is responsible for one-quarter of all jobs in…
146. Multi-Zone System A building heating, ventilation, and/or air conditioning system that distributes conditioned air to individual zones or rooms.
147. Multijunction Device A high-efficiency photovoltaic device containing two or more cell junctions, each of which is optimized for a particular part of the solar spectrum.
148. Multijunction solar cell A photovoltaic device comprised of two or more semiconductor materials or cell junctions, each capable of producing electricity with the photovoltaic…
149. Multiple use A combination of balanced and diverse resource uses that takes into account the long-term needs of future generations for renewable and nonrenewable…
150. Multiple Use Classes Class C is for lands designated either as wilderness or for wilderness study areas. These lands are managed to protect their wilderness values.
151. Multiple use management Coordinated management of the various surface and subsurface resources, without permanent impairment of the productivity of the land, that will best meet…
152. municipal solid waste Any organic matter, including sewage, industrial, and commercial wastes, from municipal waste collection systems.
153. Municipal Solid Waste (MSW) Waste material from households and businesses in a community that is not regulated as hazardous.
154. Municipal Waste As defined in the Energy Security Act (P.L. 96-294; 1980) as "any organic matter, including sewage, sewage sludge, and industrial or commercial waste, and…
155. Municipal Waste to Energy Project (or Plant) A facility that produces fuel or energy from municipal solid waste.