A hot spring, a turbine and a household electricity meter belong to the same broad conversation, but they do very different jobs. This guide teaches 100 English geothermal energy vocabulary words through Dominica, helping you follow the route from underground heat to electricity and explain what an energy number actually means.
Dominica is a useful setting because its volcanic landscape and geothermal electricity development connect geology with engineering and public communication. In an account published on 26 August 2026, the Independent Regulatory Commission records 31 July 2026 as the plant’s Commercial Operation Date. That is a documented milestone, not proof that every expected effect on customer bills or system reliability has already been achieved.
Use the groups to follow heat, equipment, measurement and evidence, then try the invented gross-to-net calculation. Top 100 is an editorial learning selection, not a measured frequency ranking. Definitions and examples teach transferable English. Every numerical plant model, dialogue and operating scenario below is invented for learning; none reports Dominica’s actual hourly output, efficiency or customer charges.
Follow the energy and the evidence
Choose a route through the physical system, its measurements or the claims people make about it. Each route ends with a task you can explain.
First check the quantity, then the calculation
Try this claim: “A plant rated at two megawatts produced two megawatthours.” Is it complete? A power rating does not supply an operating interval or actual generation. If that relationship is unclear, begin with the units group and the workshop. Learning the word turbine will not repair a missing time quantity.
Now distinguish three stages: a forecast says what is expected; a commissioning report describes testing; a commercial-operation notice records a milestone. None automatically establishes a household’s future bill. A learner who calculates accurately but merges those stages needs source-reading practice. A learner who chooses the right report but loses the unit needs measurement practice. Diagnose the first unstable connection rather than calling the whole topic difficult.
Contents: choose a useful word group
Words 1–50
11–20: Fluids, wells and the subsurface
21–30: Equipment that converts energy
Words 51–100
51–60: From generator to electricity users
61–70: Operating stages and system performance
71–80: Environmental and community questions
Worked example · Country context · Practice · Speaking and writing · Questions · Sources
These terms explain the resource setting. A volcanic feature can invite scientific questions without establishing the characteristics of a particular electricity resource.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 1 | geothermal | Relating to heat within the Earth. | geothermal energy | Dominica’s geothermal development makes the adjective useful beyond a science glossary. |
| 2 | geology | Study of the Earth’s materials, structures and history. | local geology | Local geology informs a resource question that a landscape photograph cannot answer alone. |
| 3 | volcanic | Related to volcanoes or volcanic activity. | volcanic landscape | Dominica’s volcanic landscape gives our reading a concrete geographical setting. |
| 4 | heat | Energy transferred because of a temperature difference. | heat transfer | Heat moves through the model before any electricity is generated. |
| 5 | temperature | A measure of thermal state, distinct from total heat transfer. | reservoir temperature | Temperature alone cannot tell us the total useful energy available. |
| 6 | crust | The Earth’s outermost solid layer. | Earth’s crust | The crust is a geological layer, not an electrical component. |
| 7 | magma | Molten or partly molten rock below the surface. | subsurface magma | Magma is not the fluid we assume flows through every power-plant pipe. |
| 8 | hydrothermal | Involving heated water and geological material. | hydrothermal system | A hydrothermal system connects water, heat and rock. |
| 9 | fumarole | An opening releasing steam or other volcanic gases. | volcanic fumarole | A fumarole is a surface feature, not proof of a specified plant output. |
| 10 | resource | A naturally occurring source that may be usable under relevant conditions. | geothermal resource | A resource requires investigation before its commercial potential is established. |
Geothermal means relating to heat within the Earth. Hydrothermal concerns the interaction of heated water and geological material. A surface photograph cannot measure underground temperature, permeability or sustainable production.
A geothermal system involves pathways, pressure and measurement. These are reading terms for understanding published accounts, not instructions for drilling or operating equipment.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 11 | reservoir | A subsurface volume containing usable geothermal fluids in this context. | geothermal reservoir | Reservoir need not mean a large hollow underground lake. |
| 12 | permeability | The ability of material to allow fluid to pass through connected spaces. | rock permeability | Permeability concerns pathways rather than temperature alone. |
| 13 | porosity | The proportion of void space within a material. | rock porosity | Porosity and permeability are related but not interchangeable properties. |
| 14 | fracture | A break in rock that may affect fluid movement. | rock fracture | A fracture can provide a pathway, depending on its condition and connections. |
| 15 | well | A borehole constructed for access to subsurface fluids or measurements. | production well | A well’s role must come from the project record. |
| 16 | borehole | A drilled hole into the ground. | exploratory borehole | The borehole supplies information rather than an automatic generation guarantee. |
| 17 | casing | A lining installed to support or isolate parts of a well. | well casing | Casing belongs to the well system in our labelled diagram. |
| 18 | production | Extraction of geothermal fluid for use, in this technical context. | fluid production | Fluid production and electricity generation name different stages. |
| 19 | reinjection | Returning fluid underground through a defined system. | geothermal reinjection | Reinjection is a general process whose local details need documentation. |
| 20 | pressure | Force per unit area within a fluid or other system. | fluid pressure | Pressure and flow rate require different units. |
Reservoir does not necessarily mean an underground open lake. In geothermal discussion it can describe a volume of permeable rock containing fluids. The general definition should not be mistaken for a map of Dominica’s actual subsurface.
Each component has a role. A turbine converts energy in a moving fluid into shaft motion; a generator converts mechanical energy into electrical energy. Keeping those roles distinct makes the system easier to explain.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 21 | turbine | A rotating machine extracting energy from a moving fluid. | steam turbine | The turbine supplies shaft motion to the generator in the simplified account. |
| 22 | generator | A device converting mechanical energy into electrical energy. | electrical generator | The generator does a different job from the heat exchanger. |
| 23 | shaft | A rotating member transmitting motion and torque. | turbine shaft | The shaft connects two mechanical roles in our diagram. |
| 24 | heat exchanger | Equipment transferring heat between media without requiring their mixing. | geothermal heat exchanger | A heat exchanger can connect two separate fluid circuits. |
| 25 | working fluid | A substance carrying energy through a thermodynamic process or cycle. | secondary working fluid | The working fluid needs to be identified before the cycle is explained. |
| 26 | condenser | Equipment converting vapour to liquid by removing heat. | plant condenser | The condenser belongs on the cooling side of the model. |
| 27 | pump | A device moving fluid or raising its pressure. | circulation pump | The pump uses energy that belongs in the internal-use account. |
| 28 | valve | A device controlling fluid passage through a system. | control valve | The valve symbol indicates a control function rather than an electrical generator. |
| 29 | cooling system | Equipment removing unwanted heat from a process. | plant cooling system | The cooling system reminds us that not all input heat becomes electricity. |
| 30 | binary cycle | A geothermal conversion arrangement using a separate secondary working fluid. | binary-cycle plant | Binary cycle names a general technology, not a verified project-specific label here. |
Binary-cycle is a general plant type using heat transfer to a separate working fluid. It is included for technical reading, not as an unsupported identification of every component or process used by Dominica’s project.
These process words connect the resource with equipment. The same word may appear in ordinary conversation, but the technical sentence needs a clear substance, direction and condition.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 31 | conduction | Heat transfer through material without bulk movement of that material. | heat conduction | Conduction through rock differs from fluid carrying heat along a pathway. |
| 32 | convection | Heat transfer associated with bulk fluid movement. | fluid convection | Convection supplies a movement relationship in the simplified diagram. |
| 33 | boiling | Vaporisation occurring within a liquid at relevant pressure and temperature conditions. | boiling point | Boiling depends on pressure as well as temperature. |
| 34 | evaporation | Vaporisation from a liquid surface. | surface evaporation | Evaporation is not the same process as electrical generation. |
| 35 | condensation | Change from a gaseous phase to liquid. | steam condensation | Condensation releases heat that the model must account for. |
| 36 | steam | Water in its gaseous phase. | geothermal steam | Steam and the visible white cloud above hot water are not identical descriptions. |
| 37 | liquid | A fluid state with a definite volume but no fixed shape. | hot liquid | A hot liquid can carry energy without already being steam. |
| 38 | phase | A physically distinct state or portion of a system. | phase change | A phase change and a change in electrical voltage are different events. |
| 39 | flow rate | The quantity of fluid passing a point per unit time. | fluid flow rate | State whether the flow rate measures mass or volume. |
| 40 | thermal efficiency | The proportion of heat input converted to useful work in the defined process. | conversion efficiency | Thermal efficiency needs a stated input, output and boundary. |
Boiling, evaporation and condensation are different processes. Steam is water in its gaseous phase; the visible cloud commonly seen above hot water consists mainly of tiny liquid droplets. Use the phase distinction when explaining a diagram.
These words prevent common errors in energy news. A unit tells the reader what kind of quantity a number represents. Always retain it through the calculation.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 41 | power | The rate of energy transfer or work. | electrical power | Our power value is constant only because the exercise says so. |
| 42 | energy | A quantity transferred or converted through work, heat or other processes. | electrical energy | Energy over an interval cannot be reported using only a megawatt figure. |
| 43 | watt | The SI unit of power, equal to one joule per second. | one watt | A watt measures a rate, not the total energy used in a day. |
| 44 | kilowatt | One thousand watts of power. | kilowatt rating | A kilowatt rating needs an operating time before energy can be calculated. |
| 45 | megawatt | One million watts of power. | megawatt output | The invented plant’s megawatt output is not a measurement from Dominica. |
| 46 | kilowatthour | Energy equal to one kilowatt sustained for one hour. | kilowatthour consumption | A kilowatthour is an energy unit rather than a power unit. |
| 47 | megawatthour | Energy equal to one megawatt sustained for one hour. | megawatthour generation | The result is nine megawatthours in the first invented case. |
| 48 | capacity | A stated potential or rated output under specified conditions. | installed capacity | Capacity and actual generation should keep separate labels. |
| 49 | gross | Before specified deductions; here before internal plant electricity use. | gross generation | Gross output is larger than net output in our stated model. |
| 50 | net | After specified deductions; here after internal electricity use. | net generation | Net generation reaches the chosen export boundary in the exercise. |
A megawatt is a unit of power; a megawatthour is a unit of energy. Multiplying a constant power by an interval gives energy. A capacity figure is not an automatically achieved output for every hour.
Generation is one part of a wider electrical system. These terms help connect a plant with networks and customer demand without assuming a new source removes every other operational requirement.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 51 | grid | An interconnected system for transmitting and distributing electricity. | national grid | Dominica’s grid remains a system, not simply another name for one plant. |
| 52 | transmission | Bulk movement of electricity through the relevant network. | transmission network | Transmission connects generation with other parts of the supply system. |
| 53 | distribution | Delivery of electricity through networks towards end users. | distribution system | Distribution performs a different role from the underground resource. |
| 54 | substation | A network installation for switching, transformation or related functions. | electrical substation | The substation belongs to the grid side of our reading diagram. |
| 55 | transformer | Equipment changing alternating electrical voltage through electromagnetic induction. | voltage transformer | A transformer does not create additional energy simply by changing voltage. |
| 56 | voltage | Electric potential difference. | grid voltage | Voltage is not a synonym for the amount of energy generated. |
| 57 | frequency | The number of alternating-current cycles per second in this context. | grid frequency | Frequency needs a unit and a specific measurement context. |
| 58 | demand | The rate of electricity use required at a time or over a stated interval. | electricity demand | Demand changes while a plant’s nameplate rating can stay fixed. |
| 59 | dispatch | Operational direction of generation or other electricity resources. | generation dispatch | Dispatch is an operational decision rather than a guarantee of full output. |
| 60 | load | The electrical demand placed on equipment or a system. | system load | Load must be compared with the relevant available supply. |
Transmission and distribution refer to different network roles. Dispatch concerns operation; a supply contract concerns an agreement. Neither a contract nor an installed rating guarantees that every unit will be available at every moment.
Energy projects pass through stages, and an operating system has measurable conditions. The language should distinguish completion of a test from evidence of sustained performance.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 61 | commissioning | Testing and preparation of a system before its intended service. | plant commissioning | Commissioning and commercial operation belong to different stages of the record. |
| 62 | commercial operation | The contractual or operational stage reached after relevant requirements are met. | Commercial Operation Date | The regulator gives Dominica’s Commercial Operation Date as 31 July 2026. |
| 63 | reliability | The ability of a system to perform its required service under stated conditions. | supply reliability | Reliability requires evidence over time, not only an opening announcement. |
| 64 | availability | Readiness or ability to operate under a stated definition. | plant availability | Availability does not mean the plant is dispatched at maximum output. |
| 65 | outage | A period when equipment or supply is unavailable. | planned outage | The invented outage shortens our generation interval by one hour. |
| 66 | interruption | A break in supply or operation. | supply interruption | An interruption needs its own cause and duration in the record. |
| 67 | ramp | To increase or decrease output at a specified rate. | ramp output | A ramp describes changing output rather than a fixed rating. |
| 68 | reserve | Capacity or another resource held ready for relevant contingencies. | operating reserve | Reserve is a system role, not proof that every interruption is harmless. |
| 69 | monitoring | Repeated observation or measurement to track conditions. | performance monitoring | Monitoring compares actual performance with a defined question. |
| 70 | maintenance | Care and work intended to retain or restore condition and function. | planned maintenance | Maintenance belongs in an availability discussion as well as a budget. |
Commissioning and commercial operation are different stages. Availability concerns readiness to operate under a stated definition, while actual generation measures energy produced. A plant can be available without being dispatched at full output.
A resource can offer benefits while still requiring environmental assessment, monitoring and public communication. These words help ask specific questions rather than rely on broad labels.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 71 | renewable | Replenished through natural processes on relevant timescales. | renewable resource | Renewable does not mean a project has no environmental questions. |
| 72 | emission | Release of a substance into the environment. | plant emissions | An emission claim needs a substance, boundary and measurement method. |
| 73 | assessment | Systematic evaluation against stated questions or criteria. | environmental assessment | An assessment is a process rather than an automatic approval of every claim. |
| 74 | baseline | A reference condition used for later comparison. | environmental baseline | A baseline should be comparable with the later measurement. |
| 75 | mitigation | Action intended to reduce an adverse impact or risk. | impact mitigation | Mitigation should specify the impact it addresses. |
| 76 | consultation | Seeking and considering views in a decision process. | community consultation | Consultation needs a documented process rather than an assumed consensus. |
| 77 | stakeholder | A person or group affected by or interested in a matter. | project stakeholder | A stakeholder may have a different question from the project operator. |
| 78 | water quality | Water’s properties considered against specified uses or criteria. | water-quality monitoring | Water quality requires measurements, not a conclusion from colour alone. |
| 79 | footprint | The area or wider impact associated with an activity, with scope stated. | project footprint | Footprint is meaningful only after we specify what it measures. |
| 80 | resilience | The capacity to withstand, adapt to or recover from disruption. | system resilience | Resilience includes more than the normal output of one generator. |
Renewable does not mean free from every impact. A project-specific environmental claim needs its own evidence, boundary and time period. A general technology account cannot establish every local outcome.
These terms support comprehension of official communications. The guide explains their meanings and does not estimate any household’s charges, recommend a tariff or predict investment returns.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 81 | tariff | An officially applicable structure of prices or charges. | electricity tariff | The current tariff needs its own official notice. |
| 82 | bill | A statement of charges for supplied goods or services. | electricity bill | A bill depends on relevant use and charges, not one generation headline. |
| 83 | consumption | The amount of energy used over a stated interval. | energy consumption | Consumption is measured over time rather than inferred from an appliance’s presence. |
| 84 | charge | An amount payable under a pricing arrangement; a financial sense here. | fixed charge | Charge has several meanings, so this sentence specifies a billing term. |
| 85 | contract | An agreement establishing parties’ rights and obligations. | supply contract | The contract and the actual energy delivered answer different questions. |
| 86 | regulator | An authority supervising a specified sector or activity. | electricity regulator | Dominica’s regulator supplies the dated commercial-operation account used here. |
| 87 | forecast | An evidence-based prediction about future conditions. | generation forecast | A forecast should not be reported as an already measured outcome. |
| 88 | target | A desired future result or level. | policy target | A target and an achieved result require different verbs. |
| 89 | outcome | A resulting condition or change. | customer outcome | A customer outcome needs observation rather than a promise repeated as fact. |
| 90 | verification | Checking that evidence supports a stated result or claim. | independent verification | Verification begins by identifying exactly what is being claimed. |
A tariff describes the applicable pricing structure, while a bill combines relevant charges and use. A generation milestone alone does not determine either. Read the current official notice for any actual customer decision.
The final words help turn technical vocabulary into a clear report. A good sentence gives enough information for another reader to understand the quantity and its scope.
| No. | Word or term | Meaning and usage | Natural collocation | Original example |
|---|---|---|---|---|
| 91 | measurement | A value obtained by a defined measuring process. | output measurement | The measurement must keep its unit and interval. |
| 92 | estimate | An approximate value derived using evidence and assumptions. | generation estimate | An estimate can be useful while retaining its uncertainty. |
| 93 | interval | The span between specified times or positions. | operating interval | The interval falls from five to four hours in the changed case. |
| 94 | assumption | A condition accepted for a calculation or explanation. | constant-output assumption | The assumption lets us multiply net power by operating time. |
| 95 | boundary | The limit defining what a calculation or system includes. | export boundary | The boundary determines which internal uses must be subtracted. |
| 96 | comparison | Examination of differences and similarities on a stated basis. | like-for-like comparison | The comparison uses the same unit and accounting boundary. |
| 97 | uncertainty | Incomplete knowledge or stated limits surrounding a result. | measurement uncertainty | Uncertainty should remain visible beside the reported estimate. |
| 98 | evidence | Information supporting a conclusion. | operational evidence | Evidence of commercial operation does not establish every later bill effect. |
| 99 | qualification | A condition or limit making a claim more exact. | necessary qualification | The qualification labels our numerical plant as fictional. |
| 100 | explanation | An account showing how or why something occurs. | technical explanation | The explanation connects the heat source, conversion process and measured output. |
Separate an estimate from a measurement and a target from an achieved result. Precise qualification does not weaken useful evidence; it stops one fact from being asked to prove a different claim.
Generation workshop: take the internal use out
Imagine a fictional small plant with constant gross electrical output of 2 megawatts. Its internal pumps and other equipment consume 0.2 megawatts during operation. Choose the export boundary after that internal use. Net export power is therefore 2 − 0.2 = 1.8 megawatts. These values are invented, and the model makes no claim about Dominica’s plant design or actual auxiliary demand.
Let the model operate at those constant values for five hours. Net exported energy is 1.8 megawatts multiplied by 5 hours: 9 megawatthours. Gross generated energy is 10 megawatthours; internal electrical use is 1 megawatthour. Subtracting those two energy amounts gives the same net result. The two routes agree because the quantities, interval and boundary are consistent.
Change one condition: a one-hour outage occurs within the same five-hour reporting window. Assume no generation or internal electrical consumption during that hour, and unchanged values during the remaining four operating hours. Net exported energy becomes 1.8 × 4 = 7.2 megawatthours. The nameplate rating has not changed. Actual energy over the reporting interval has changed.
This is an electricity-accounting model, not an efficiency calculation for the whole geothermal process. We have not supplied the thermal energy entering the conversion system. The ratio of net to gross electrical output describes an electrical accounting relationship, not the fraction of underground heat converted into electricity. Keep the input and output definitions visible before using the word efficiency.
Find the breakpoint. If the learner writes nine megawatts for the five-hour result, return to rate multiplied by time. If the units are right but the internal use is added instead of subtracted, redraw the boundary with an arrow consumed inside it. If the arithmetic is correct but the result is reported as an actual national figure, repair the model label.
Fade the support by giving only a fresh written case: gross power 3 megawatts, internal use 0.3 megawatts and two constant operating hours. Ask for net power and exported energy in separate sentences. They are 2.7 megawatts and 5.4 megawatthours. Tomorrow, add an outage and ask the learner which quantities stay unchanged. The explanation should survive the changed condition.
Dominica: a milestone changes the question
The Independent Regulatory Commission’s 26 August 2026 account records a Commercial Operation Date of 31 July 2026 after required testing. At the source check on 21 October 2026, that dated statement supplies a stronger basis than an older forecast about when a plant might open. Use the event date and publication date carefully: they are different pieces of the record.
The same account distinguishes reaching commercial operation from proving every anticipated customer effect. That is a useful reading lesson. A milestone establishes a stage; performance monitoring asks what happens afterwards. The regulator also publishes a later explanation concerning grid response to geothermal interruption. Together these sources encourage system questions rather than the assumption that one new generating source removes every operating challenge.
General geothermal technology has several conversion routes. The U.S. Energy Information Administration explains direct steam and binary-cycle arrangements, among others. In a binary cycle, heat is transferred to a separate working fluid. That general explanation helps read the vocabulary but does not identify Dominica’s exact equipment without a project-specific technical source. A technology diagram and an actual plant record perform different jobs.
Here is an original classroom exchange. Reader: “The report says megawatts. Can I compare that directly with the household’s kilowatthours?” Partner: “First identify power and energy, then the time interval and boundary. They are related quantities, not interchangeable labels.” Reader: “And will a new source lower every bill?” Partner: “That needs the current tariff, consumption and measured outcomes, not just the plant’s rating.”
Read the eduKate Dominica learning guide for the volcanic landscape, hydrothermal features and wider island context. It distinguishes a scientific learning model from a practical visit. A heat source can be studied from published material; this vocabulary guide supplies no field instructions or access guarantee. Dominica and the Dominican Republic are different countries and require different sources.
Practice: recall, explain and revise
1. A constant net output of 1.5 megawatts continues for four hours. State the energy.
2. Gross power is 4 megawatts and internal use is 0.4 megawatts. Find net power at the stated export boundary.
3. Why is the net-to-gross electrical ratio not automatically the thermal efficiency?
4. Revise “The rated capacity proves the plant generated that amount every hour.”
5. A forecast and a later operation notice disagree about timing. How should a paragraph handle them?
6. What information beyond a generation milestone would be needed to discuss an actual household bill?
Answers and explanations
1. Six megawatthours. The power is multiplied by the operating interval, and the unit changes from a rate to an energy amount.
2. Net power is 3.6 megawatts. The specified internal electrical use is subtracted from gross electrical output.
3. Thermal efficiency needs a defined heat input as well as useful work output. Gross and net here are both electrical quantities, so their ratio answers a different accounting question.
4. “Rated capacity describes potential under specified conditions. Actual generation requires operating data and an interval.” Keep power and energy units distinct.
5. Identify each document’s date and purpose. Present the earlier statement as a forecast and the later verified milestone as a later stage, rather than merging them into one undated claim.
6. The applicable tariff and charges, relevant consumption and billing period, plus evidence for any claimed change. This guide supplies no household-specific bill estimate.
Write energy English that keeps its units
For speaking, explain the fictional plant to a listener who cannot see the calculation. Say gross output, internal use, net power and operating interval. Ask the listener to repeat the final quantity with its unit. If they report megawatts for the five-hour energy result, find the sentence where the distinction became unclear.
For writing, prepare a short energy-news explainer with one dated source fact, one general technical relationship and one limitation. Keep the original model’s numbers away from the sourced national claim. A reader should never have to guess whether a quantity is an observed plant value, a forecast or a classroom assumption.
A student who confuses heat and electricity needs a conversion diagram. A student who confuses megawatts and megawatthours needs a rate-and-time example. A student who calculates correctly but treats a target as an outcome needs source labels and reporting verbs. These require different next lessons even if the final paragraph initially looks equally uncertain.
Parents can ask one practical question: “What does this number measure?” Teachers can keep a small error record for quantity, unit, interval, boundary and source. Use a changed-condition task after a delay and reduce prompts as control grows. The aim is a learner who can read a new energy story without needing this exact worked example beside it.
The English Tuition | Dominica guide distinguishes stated information from inference and uses materials appropriate to the learner’s actual route. That habit transfers to technical news. It does not make this list a CSEC syllabus or establish a local eduKate centre. Use current official course materials for any examination-specific preparation.
Frequently asked questions
Does geothermal mean electricity?
Geothermal refers to heat within the Earth. That heat can have different uses. Electricity generation requires a conversion system; the resource and the electrical product are different parts of the explanation.
Are these Dominica plant output figures?
No. Every calculation in the workshop is invented. The local factual milestone is attributed to the regulator’s dated account, while the numerical model teaches general units and accounting.
Why include binary cycle if it is not used to identify this plant?
It is useful vocabulary for reading general geothermal explanations and comparing technologies. The guide explicitly separates a general technology type from a verified project-specific description.
Is capacity the same as generation?
No. Capacity describes potential or a rating under stated conditions. Generation is the production of electrical energy and needs an interval when expressed as an amount.
What is the best first learning task?
Explain one conversion relationship or one rate-and-time calculation. Use the right units, then change a condition. Accurate use of a few terms provides a stronger base than memorising all equipment names without understanding their roles.
Sources and the scope of this guide
Sources checked on 21 October 2026. Local milestones are dated and attributed. All numerical scenarios and dialogue are original teaching material. General technology descriptions are not presented as a verified equipment inventory for Dominica. The guide makes no customer-price prediction, investment claim or operational recommendation.
Independent Regulatory Commission: Commercial operation account — Published 26 August 2026; records the 31 July 2026 milestone and separates operation from customer-outcome monitoring.
Independent Regulatory Commission: Grid response to interruption — A later system-level discussion, read as a dated account rather than a guarantee of present availability.
U.S. Energy Information Administration: Geothermal power plants — General conversion technologies and component relationships.
U.S. Energy Information Administration: Measuring electricity — Power and energy units and their relationship through time.
U.S. Energy Information Administration: Electricity glossary — Technical electricity vocabulary and accounting senses.
U.S. Department of Energy: Geothermal direct use — The distinction between direct heat use and electricity conversion.
Oxford Learner’s Dictionaries: geothermal — The English adjective’s meaning and use.
Next: one number with its full meaning
Choose a technical paragraph and underline each quantity. Add its unit, interval and source in your notes. Then explain the paragraph in ordinary language without changing what the quantities mean. Keep one corrected sentence for the next session, so your learning continues from the actual point of difficulty.
Continue through the eduKateSG Vocabulary hub and eduKate Vocabulary Learning System. Practise meanings, contrasts, retrieval and fresh explanations. A well-chosen word can make a complicated system visible; a well-labelled unit can stop an entire paragraph taking the wrong turn.