Hydroelectric Plant Technicians

Production Occupations
O*NET-SOC code
51-8013.04

Monitor and control activities associated with hydropower generation. Operate plant equipment, such as turbines, pumps, valves, gates, fans, electric control boards, and battery banks. Monitor equipment operation and performance and make necessary adjustments to ensure optimal performance. Perform equipment maintenance and repair as necessary.

  • Data source: BLSPublished: 2026-08

    Moderate· relative

    LowFour relative bandsVery high

    Group-level value

    Scale, basis and source

    Four relative bands (Low / Moderate / High / Very high)

    831 detailed occupations in the BLS Employment Projections table. Assigned per National Employment Matrix (NEM) code, so occupations sharing a NEM code carry the same band

    Source dataset (XLSX download)

  • Data source: AnthropicPublished: 2026-03

    0.026

    0.000Range of values carried here0.745

    Group-level value

    Scale, basis and source

    Observed exposure index, 0–1 as published

    Mapped onto O*NET tasks

    Published per SOC 2018 occupation; every O*NET occupation with the same SOC 2018 code carries this value

    Source dataset (CSV download)

  • Data source: ILOPublished: 2025

    0.28

    0.09Range of values carried here0.70

    Group-level value

    Scale, basis and source

    Generative AI exposure index, 0–1 as published

    Published per ISCO-08 unit group. Linked to this occupation, wholly or in part, by applying U.S. Bureau of Labor Statistics crosswalks (ISCO-08 to 2010 SOC, 2010 SOC to 2018 SOC) as published

    Source dataset (PDF download)

What kind of figure this source publishes

The BLS category is a relative rank, not an absolute level, and it is not a first-hand measurement: it groups an occupation's percentile ranks across several published studies into four bands. It is not an employment or wage forecast, not a probability of adoption, and it does not separate automation from augmentation.

Task-level exposure

Show 19 hidden tasks

21 rated tasks · 2 tasks with β ≥ 0.5 (9.5%)

β = direct exposure (E1) + 0.5 × exposure when tools are available (E2), per the source repository's definition.

  • Source unit: O*NET 27.2 tasks → O*NET 31.0 occupation code
  • All rated tasks are in the O*NET 31.0 task list.
Source
OpenAI "GPTs are GPTs" exposure rubric
Release
gh-main-0471612
License
MIT License, Copyright (c) 2024 OpenAI

Values in this tab are predicted labels, not observations. Eloundou et al. (2023) published two rating regimes — human raters and GPT-4 — and the β shown here is derived from the GPT-4 rater basis alone; the same task can take a different value under the other regime.

Task (O*NET 27.2)βE1 + 0.5 × E2
Communicate status of hydroelectric operating equipment to dispatchers or supervisors.

O*NET Task ID 17914

1.0
Maintain logs, reports, work requests, or other records of work performed in hydroelectric plants.

O*NET Task ID 17918

1.0

β = E1 + 0.5 × E2 · E1 = tasks where direct LLM access alone cuts time by at least 50%, E2 = tasks where software built on top of an LLM cuts time by at least 50%. Values take only 0 / 0.5 / 1.0.

Data sources & licenses — O*NET®, Eloundou et al. (2023): see full notices on the Credits page

All O*NET 31.0 task statements (21)

All O*NET 31.0 task statements for this occupation (English, as published; task type core or supplemental). Exposure values are not listed here; they are in the table above, next to each task statement as worded in the O*NET version each source used.

Task (O*NET 31.0)Type
Identify or address malfunctions of hydroelectric plant operational equipment, such as generators, transformers, or turbines.Core
Monitor hydroelectric power plant equipment operation and performance, adjusting to performance specifications, as necessary.Core
Start, adjust, or stop generating units, operating valves, gates, or auxiliary equipment in hydroelectric power generating plants.Core
Communicate status of hydroelectric operating equipment to dispatchers or supervisors.Core
Implement load or switching orders in hydroelectric plants, in accordance with specifications or instructions.Core
Inspect water-powered electric generators or auxiliary equipment in hydroelectric plants to verify proper operation or to determine maintenance or repair needs.Core
Install or calibrate electrical or mechanical equipment, such as motors, engines, switchboards, relays, switch gears, meters, pumps, hydraulics, or flood channels.Core
Maintain logs, reports, work requests, or other records of work performed in hydroelectric plants.Core
Maintain or repair hydroelectric plant electrical, mechanical, or electronic equipment, such as motors, transformers, voltage regulators, generators, relays, battery systems, air compressors, sump pumps, gates, or valves.Core
Operate high voltage switches or related devices in hydropower stations.Core
Operate hydroelectric plant equipment, such as turbines, pumps, valves, gates, fans, electric control boards, or battery banks.Core
Take readings and record data, such as water levels, temperatures, or flow rates.Core
Test and repair or replace electrical equipment, such as circuit breakers, station batteries, cable trays, conduits, or control devices.Core
Change oil, hydraulic fluid, or other lubricants to maintain condition of hydroelectric plant equipment.Core
Connect metal parts or components in hydroelectric plants by welding, soldering, riveting, tapping, bolting, bonding, or screwing.Core
Cut, bend, or shape metal for applications in hydroelectric plants, using equipment such as hydraulic benders or pipe threaders.Core
Erect scaffolds, platforms, or hoisting frames to access hydroelectric plant machinery or infrastructure for repair or replacement.Core
Lift and move loads, using cranes, hoists, and rigging, to install or repair hydroelectric system equipment or infrastructure.Core
Perform preventive or corrective containment or cleanup measures in hydroelectric plants to prevent environmental contamination.Core
Perform tunnel or field inspections of hydroelectric plant facilities or resources.Core
Splice or terminate cables or electrical wiring in hydroelectric plants.Core

Occupation information

Employment outlook (BLS)

Values for the whole SOC 51-8013 group (Power plant operators), not for this O*NET occupation alone.

Employment, 2025
30K
Projected employment, 2035
28K
Change (2025–35)
-5.1%
Median annual wage, 2025
$102,040
Typical education needed for entry
High school diploma or equivalent
lowest $30,890median wage across 825 detailed occupations, BLS EP 2025–35highest $559,030

Source: U.S. Bureau of Labor Statistics, Employment Projections 2025–35 — Employment by detailed occupation, 2025 and projected 2035

Korea classification links (KSCO)

Links from the current release of the Korea Occupation Direct Crosswalk v1.1, made by AI Changing Work. Relation values are read from the O*NET-SOC occupation side.

KSCO codeKSCO titleRelationStatus
86102수력발전 장치 운전원Same scopeconfirmed

Relation and status definitions(kr-direct v1.1)

ILO occupational description

AI Changing Work links the ISCO-08 unit groups below to this occupation by applying the U.S. Bureau of Labor Statistics crosswalks (2018 SOC to 2010 SOC, 2010 SOC to ISCO-08) as published, without case-by-case selection; each link may be whole or partial.

  • ISCO-08 3131Power Production Plant Operators

The definition, tasks and examples below are the ILO's description of that unit group, not of this occupation.

Power production plant operators operate, monitor and maintain switchboards and related equipment in electrical control centres which control the production and distribution of electrical or other power in transmission networks. The equipment operated includes reactors, turbines, generators and other auxiliary equipment in electrical power generating stations.

Tasks

  • (a) operating, monitoring and inspecting various types of energy generating power plants;
  • (b) operating and controlling power generating systems and equipment including boilers, turbines, generators, condensers, and reactors in hydro, thermal, coal, oil, natural gas, and nuclear power plants to generate and distribute electrical power;
  • (c) controlling start-up and shut-down of power plant equipment, controlling switching operations, regulating water levels and communicating with systems operators to regulate and coordinate transmission loads, frequency and line voltages;
  • (d) taking readings from charts, meters and gauges at established intervals, troubleshooting and performing corrective action as necessary;
  • (e) completing and maintaining station records, logs and reports, and communicating with other plant personnel to assess equipment operating status;
  • (f) cleaning and maintaining equipment such as generators, boilers, turbines, pumps, and compressors in order to prevent equipment failure or deterioration.

Example occupations

Distribution control operator · Electric power plant operator · Generating station operator · Hydroelectric power plant operator · Nuclear power plant operator · Solar power plant operator

Sources: ILO ISCO-08 — details: Credits

ESCO occupational vocabulary

Each entry below is matched to this occupation in the published ESCO-O*NET Crosswalk (version 1, 2022). The match types are that crosswalk's; the wording is AI Changing Work's.

  • hydropower technicianESCO 3113.2Same scope

    Hydropower technicians install and maintain systems in hydropower plants. They perform inspections, analyse problems and carry out repairs. They ensure the turbines operate in compliance with regulations, and assist the hydropower engineers in the construction of turbines.

  • hydroelectric plant operatorESCO 3131.1.5Overlapping, not the same

    Hydroelectric plant operators operate and maintain the equipment used in the production of energy from the movement of water. They monitor the measuring equipment, assess the production needs, and adapt the water flow to meet these needs. They also perform repairs and maintenance duties.

Source: European Commission, DG EMPL — ESCO API 2026-08-08 (bridge v1.2.1)

License: CC BY 4.0 (EU Reuse Notice)

View original

ESCO reuse terms and the modification notice are in Credits.

France classification links (ROME)

AI Changing Work's links between this occupation and ROME 4.0 job profiles, judged with AI models. Relations are read from this occupation's side. Links marked “provisional” were adopted on the judgments of two judges from the same model family (Claude) alone, or by an operator rule applied to their judgments, so they rest on weaker evidence than confirmed links.

ROME codeROME title (French)Relation
H2712Technicien / Technicienne d'exploitation en centrale hydroélectriqueSame scopeprovisional
H2701Technicien / Technicienne d'exploitation en production d'énergie thermiqueRelated, not a matchprovisional

Source: France Travail — Répertoire Opérationnel des Métiers et des Emplois (ROME 4.0), version 61, last updated 15 June 2026 (https://www.data.gouv.fr/datasets/repertoire-operationnel-des-metiers-et-des-emplois-rome). Licence Ouverte 2.0.

ROME codes and titles are reproduced unchanged; the links to O*NET-SOC occupations are AI Changing Work's own judgment and are not a France Travail correspondence.

(AI Changing Work link release: fr-direct v1)

Spain classification links (CNO-11)

AI Changing Work's links between this occupation and CNO-11 occupations, judged with AI models. Relations are read from this occupation's side.

CNO-11 codeCNO-11 title (Spanish)Relation
3131Técnicos en instalaciones de producción de energíaThis occupation is narrower

Source: Instituto Nacional de Estadística (INE), National Classification of Occupations 2011 (CNO-11, Royal Decree 1591/2010) — www.ine.es · Licensed CC BY 4.0. CNO-11 codes and Spanish titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own judgment and are not an INE correspondence.

(AI Changing Work link release: es-direct v1)

Germany classification links (KldB)

AI Changing Work's links between this occupation and KldB occupations, judged with AI models. Relations are read from this occupation's side.

KldB codeKldB title (German)Relation
26232Berufe in der Energie- und Kraftwerkstechnik - fachlich ausgerichtete TätigkeitenThis occupation is narrower
26252Berufe in der elektrischen Betriebstechnik - fachlich ausgerichtete TätigkeitenRelated, not a match

Source: © Statistik der Bundesagentur für Arbeit — Klassifikation der Berufe 2010 – überarbeitete Fassung 2020, https://statistik.arbeitsagentur.de. KldB codes and titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own mapping (eigene Zuordnung) and are not a Bundesagentur für Arbeit correspondence.

(AI Changing Work link release: de-direct v1)

Japan classification links (JSCO)

AI Changing Work's links between this occupation and JSCO occupations, judged with AI models. Relations are read from this occupation's side.

JSCO codeJSCO title (Japanese)Relation
641発電員,変電員This occupation is narrower

Source: Ministry of Internal Affairs and Communications (MIC), Japan Standard Occupational Classification (Dec. 2009, MIC Notification No. 555). JSCO codes and Japanese titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own judgment and are not a MIC correspondence.

(AI Changing Work link release: jp-direct v1)

Sources, licenses and AI Changing Work's modification and translation notices for this page: Credits & sources