The terms the record uses, each defined once in plain words. A definition says what a thing is and how the record treats it; it never argues for or against one. Terms were seeded from the words that recur in the sources the record reads.
- AI data center also AI campus, AI factory
- A data center whose stated purpose is training or running artificial intelligence models. The record keeps the source's own words: ai_training, ai_inference, or ai_unspecified when a source says AI and no more.
- Annexation also annex
- A city taking land into its limits, often so that a project can use city water, sewer and zoning. It needs a vote of the council and sometimes of the residents.
- Backup generators also diesel generators, standby generators
- Engines, usually diesel, that power a data center when the grid fails. Their number and their air permit are often the first public figures about a site.
- Behind the meter also on site generation, co-located generation
- Power generated on the customer's side of the utility meter, on or next to the data center site, so it does not pass through the grid.
- Campus
- A site planned for more than one data center building, often built in phases. The record keeps one project per campus unless a source treats the phases as separate projects.
- Capacity also IT load, critical load
- The electrical load a data center is designed to draw, stated in megawatts. It is the figure most sources report and the one the record sums where it is disclosed; it is not the same as the power actually being used.
- City council also town council, village board
- The elected body of a city or town. It adopts zoning ordinances, approves annexations and development agreements, and can enact a moratorium within city limits.
- Closed loop cooling also closed loop, liquid cooling
- A cooling system that recirculates the same water or fluid rather than evaporating it, so ongoing water use is low. Sources use the phrase without a standard definition; the record keeps the water figure the source gives.
- Colocation also colo
- A data center that leases space and power to many customers who bring their own equipment. The record's use type is colocation and the tenancy is multi.
- Conditional use permit also CUP, special use permit, special exception
- An approval that allows a use a zone permits only with conditions, decided case by case after a hearing. Many data centers are approved this way, which the record rates case by case.
- County commission also board of supervisors, board of commissioners, county board
- The elected board that governs a county in most states, called the board of supervisors in some. It votes on rezonings, conditional use permits, development agreements and moratoriums for unincorporated land.
- Crypto mining also bitcoin mining, mining facility
- Running computers that earn cryptocurrency. A mining facility is a data center by the record's inclusion rule and carries the use type crypto_mining.
- Depth record also depth
- A project record a person has reviewed: every fact sourced, a full status history, the site located to a parcel where the public record allows.
- Development agreement also incentive agreement, economic development agreement
- A contract between a developer and a city or county that sets terms for a project: what the developer will pay or build, what the jurisdiction will approve, and for how long. Tax incentives are often written into one.
- Environmental impact statement also EIS, EIR, environmental review, environmental assessment
- A study of a project's effects required for some public approvals: an environmental impact statement or assessment under federal law, an environmental impact report in California. The record links the document as a primary source.
- Evaporative cooling also cooling towers
- A cooling system that removes heat by evaporating water, which is why data center water use is stated in gallons a day or acre feet a year.
- Executive order
- A directive from a governor or the President that sets policy for state or federal agencies without a vote of the legislature. On the record it is a state level event on the state's own scorecard row.
- Gallons per day also GPD, gallons a day
- A water use figure stated as a daily rate. The record records gallons a day or gallons a year as the source states it and never converts between them.
- Gas plant also natural gas plant, gas turbines, gas fired generation
- A power plant fueled by natural gas, built or proposed to serve a data center directly or to add supply to the grid. A plant on the data center's own site is behind the meter.
- Gigawatt also GW
- One thousand megawatts. Used for the largest campuses and for statewide load figures.
- Grid
- The transmission and distribution network that delivers electricity. A data center joins it through an interconnection with the local utility or the regional grid operator.
- Hyperscale also hyperscaler
- A data center built and run by one of the largest cloud and internet companies for its own services, usually hundreds of megawatts and many buildings. The word describes the operator, not a measured size, and the record does not use it as a category of its own.
- Interconnection also interconnection request, grid connection
- The connection of a data center, or a power plant, to the grid, requested from the utility or the grid operator and studied for its effect on the network. An interconnection request on file is an application, so the project reads permitting.
- Large load tariff also tariff, rate schedule, large load rate
- A utility rate schedule for customers above a stated demand, often written for data centers, that can set minimum bills, contract terms and who pays for new equipment. Approved by the public utility commission.
- Lawsuit also appeal, petition, legal challenge
- A court challenge to an approval, a denial, a permit or a rule. The record enters a lawsuit as a dated event with the court and the parties and does not predict its outcome.
- Load forecast also load growth
- A utility's projection of future electricity demand, filed with the regulator. Data center requests have driven recent forecasts up, and the forecast is the figure behind new plants and lines.
- Megawatt also MW
- One million watts of electrical power. The record states a data center's capacity in megawatts as the source gives it, without converting or estimating, and says whether the figure is measured, permitted, a developer's estimate or a third party's.
- Moratorium also ban, pause, temporary halt
- A temporary ban on approving new data centers, or on one kind of approval, adopted by a council, a commission or a legislature for a stated period or until a rule is written. While one is in force the row is restrictive when it ends within 12 months or its end is not stated, and closed when it runs longer than 12 months or the source calls it permanent or indefinite.
- Non disclosure agreement also NDA, confidentiality agreement, codename
- A contract that keeps the identity of a developer or tenant confidential during negotiations, which is why many projects appear first under a codename. The record names the developer only from a source that names it.
- Payment in lieu of taxes also PILOT
- A negotiated payment a project makes instead of the property tax it would otherwise owe, usually smaller and fixed for a term.
- Permit
- A written approval from a public body that a project needs before it can proceed: a building permit, an air permit, a water right, a grading permit, an interconnection approval. A project with an application on file reads permitting on the record.
- Planning commission also planning and zoning commission, P&Z
- An appointed board that reviews land use applications and recommends a decision to the council or county commission, which votes. Its hearing usually comes first.
- Power purchase agreement also PPA
- A contract to buy electricity from a specific plant at agreed terms, often for years. Data center operators sign them with renewable, gas and nuclear projects.
- Public hearing also hearing
- A meeting at which a public body takes comment on an application or a rule before it votes. Notice of the hearing is published in advance; the minutes and the recording are primary sources.
- Public utility commission also PUC, PSC, public service commission, utilities commission
- The state body that regulates investor owned utilities, sets rates and tariffs and approves large power supply contracts and new plants. Called the public service commission in some states.
- Ratepayer also ratepayers, ratepayer protection
- A customer of a utility. The word appears where a state asks who pays for the transmission, generation and substations a data center needs, and whether other customers' bills rise.
- Recall election also recall
- A vote to remove an elected official before the end of a term, started by petition. Recalls have followed council votes on data centers.
- Referendum also ballot measure, ballot initiative, petition
- A vote by residents on a measure, put on the ballot by a council or by petition. Residents have used referendums to overturn rezonings for data centers and to adopt moratoriums.
- Reported also rumored, rumoured
- A project the record has read the name of in reporting, with no public filing found. A codename, a land assembly or a utility inquiry, not confirmed by the developer, a landowner or a public body. It is the first of the eight statuses and the least settled: the record carries the project because a source named it, and says plainly that nothing official has been filed. The data status behind the word is rumored, which is what every export and every query carries; the page says reported because that is what the record knows, and calling it rumored would read as though the record doubted the reporting.
- Rezoning also zone change, map amendment
- A change to a parcel's zoning district, requested by an owner or developer and decided by the council or commission after a public hearing. A project waiting on a rezoning is proposed on the record until an application it can act on is on file.
- Sales tax exemption also tax exemption, tax incentive
- A state rule that removes sales tax from data center equipment purchases, usually above an investment threshold. On the record it is a tax rule on the state's laws page.
- Scorecard also rating
- The record's rating of how a jurisdiction handles data centers: open, case by case, restrictive, closed or not rated. A rating rests only on a binding act in force by that body, such as an ordinance, a statute, a vote that took effect, a commission order or a court order. Statements, hearings, proposals, protests and lawsuits never move it, and the row shows the most restrictive act in force.
- Setback also buffer
- The minimum distance a building or its equipment must keep from a property line, a road or a home, set by the zoning ordinance or a permit condition.
- Site plan also site plan review
- The drawing of what will be built where on a parcel, reviewed by staff or the planning commission after zoning allows the use.
- Skeleton record also skeleton
- A project record drafted from one or a few sources by the batch process and not yet reviewed in depth. It carries a name, a place, a developer where a source names one, a status and its sources, and is labeled unreviewed on the site until a person promotes it.
- Source tier also tier
- How the record ranks a source: tier 1 a query feed, tier 2 a primary document (a docket, an agenda, a permit, a statute), tier 3 the trade press, tier 4 local and broadcast press, tier 5 video. The tier is the only weight; no outlet is designated primary.
- Substation
- The equipment that steps grid voltage down for delivery to a customer. A large data center usually needs its own.
- Tax abatement also abatement
- A reduction of property tax for a stated number of years, granted by a local body to attract a project.
- Tax increment financing also TIF
- A tool that pays for public improvements from the increase in property tax a development produces, over a set term.
- Transmission line also transmission, power line
- A high voltage line that moves electricity between substations and regions. A new data center can require a new line, which needs its own approvals and takes years.
- Water right also water rights
- A legal right to divert a stated amount of water from a source, held or leased by the user and administered by the state. A data center that needs one applies to the state engineer or water board.
- Zoning also zoning ordinance, zoning code, land use
- The local rules that say what may be built where. A data center needs a zone that allows it, by right or with a permit, and a rezoning changes a parcel's zone.