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Illustrative: a wind farm on a ridge with rotors turning and helical wakes, or a solar tower and its heliostat field

Risk Academy, led by the Nexus Consortium · Infrastructure, Energy and Industry · Department of Energy and Resources

Taught in the Nexus stream

Energy systems and the energy transition

The discipline covers the reliability, security and transition of the systems that produce, store and deliver power, heat and fuels: generation, grids and interconnection, storage, hydropower and nuclear interfaces, and the risks of a fast transition.

01Scope

What the discipline covers

The subtopics its courses and labs teach.

  • Energy security
  • Power grids and interconnection
  • Grid disruption and restoration
  • Renewables and storage
  • Hydropower and water
  • Heat, cooling and demand
  • Transition risk for energy companies
  • Industrial energy systems
  • Energy access

Courses in development extend the scope to one further subject: Energy, water and cities under heat and drought.

02Maps

Maps and the globe for any place

Search any place or open the world; the layers and generators follow energy systems and the energy transition on the planet map, the globe and in 3D.

The boundaries, names and designations shown do not imply any judgement on the legal status of any territory, or any endorsement or acceptance of such boundaries. Countries: Natural Earth (public domain).

03Live map

Energy now in New Zealand

Night-time lights, fires and gas flares, sunshine and heat, the signals of energy use, supply and demand, over New Zealand.

The interactive map needs JavaScript; the layer list and sources are below.

Layers 2

Energy now

Latest available

NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth

Loading the latest NASA imagery.

Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.

Energy now, framed on New Zealand.Satellite and model products as NASA publishes them, each with its own date. They are indicators, not assessments of any place.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · NASA EONETSources and licences

  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • NASA Fire Information for Resource Management System (FIRMS), VIIRS 375 m active fire product, NASA LANCE; vector tiles via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • MERRA-2 reanalysis, NASA Global Modeling and Assimilation Office; distributed by the NASA GES DISC; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • MODIS and VIIRS atmosphere products, NASA LANCE and LAADS DAAC; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). Cite as: NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team (2019). ASTER Global Digital Elevation Model V003. doi:10.5067/ASTER/ASTGTM.003. NASA open data
  • Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
  • © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
  • Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
  • Live events: NASA Earth Observatory Natural Event Tracker (EONET); events are indicative and keep their original source links.
  • NASA GIBS: We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS).
  • Past year, daily temperature (ERA5 via Open-Meteo): Contains modified Copernicus Climate Change Service information 2026.
  • Past year, daily temperature and sunshine (NASA POWER): These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program..
  • Weather data by Open-Meteo.com (https://open-meteo.com/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
  • Optional layers (8 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.

Layers and dates

  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026
  • Active fires and thermal anomalies: VIIRS NOAA-20 375 m (FIRMS), NASA LANCE FIRMS · 13 Oct 2026
  • Incoming sunlight at the surface over land, monthly mean: MERRA-2, NASA GMAO / GES DISC · July 2026
  • Daytime cloud fraction: MODIS Terra, NASA LANCE · 13 Oct 2026
  • Land surface temperature, day: VIIRS NOAA-20, NASA LANCE · 13 Oct 2026
  • Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026

04The subject

The subject, methods and measures and debates and bodies

The field and its scope

For energy planners, grid and market analysts, utility risk managers and policy staff who need to assess security of supply, grid disruption and restoration, and the transition risks that fall on energy companies and the systems they run.

05The method

From a reserve margin to hours of lost load: how adequacy is counted

Peak demand and installed capacity give a reserve margin; forced outages and demand error turn that margin into a probability of shortfall; the hours of shortfall expected in a year are the loss of load expectation, and the adequacy standard decides whether more capacity is procured.

Sources: Billinton and Allan, Reliability Evaluation of Power Systems (1996); Joskow, Capacity payments in imperfect electricity markets: need and design (2008); Busby et al., Cascading risks: understanding the 2021 winter blackout in Texas (2021); Pfenninger, Hawkes and Keirstead, Energy systems modelling for twenty-first century energy challenges (2014).

06Instrument

Energy systems and the energy transition

Energy systems and the energy transition: 1 primary courses open, 2 in preparation and 1 also taught here, across 9 subtopics and 4 connected disciplines. Courses: RAN-302 L2 open, RAN-311 L2 in preparation, RAN-362 L2 in preparation, RAF-105 L1 also taught here.
Energy systems and the energy transition at a glance
  • Open, 1
  • In preparation, 2
  • Also taught here, 1
  • Subtopics, 9
Course codes from the curriculum; study levels L1 to L4.
Energy systems and the energy transitionRegister
  1. Courses1 course open
  2. LevelsL2 Intermediate
  3. LabsNetwork lab, Map lab, Exposure lab

Risk Academy · Infrastructure, Energy and Industry

07Signature

How energy systems and the energy transition connects the sectors

Select corners to build a signature, then hover a line to read what each sector gives and receives.

Select corners · hover lines6 / 15 relations

Signature

Energy and its partners

Energy gives power for transport and telecoms to infrastructure (0.8), pumping and treatment to water (0.5) and fertiliser, machinery and cold chains to food (0.5).

W · E · I · F · H · B

Sectors
4 of 6
Relations
6 of 15
Coupling
0.46 share of total

Strongest relations in play

  • Energy → Infrastructure · power for transport and telecoms0.8
  • Water → Energy · cooling water and hydropower0.6
  • Water → Food · irrigation0.8
  • Infrastructure → Water · pipes, dams and treatment works0.6
Teaching values for a typical city-region, not measurements for any place. Coupling is the summed strength of the relations in play, as a share of all fifteen.
08Standards and evidence

Standards and evidence, research and evidence, profile, what is changing and learning

Nexus Standards it teaches and relies on

The Nexus Standards the discipline teaches toward, grouped by master standard, with the disciplines that teach each.

Nexus Standards at the AcademyThe Academy proposes how each discipline teaches toward the Nexus Standards; the mapping is open for public review.

09Console

How Energy systems and the energy transition is taught, as a process you can run

Press Play to run this process from this page's own data.

10Practice

Practice, learning and connections

How technology helps and what risk it brings

11Take part

Take part in Infrastructure, Energy and Industry

Start from who you are.

12References

Core references and where to begin

Start with Cherp, then Billinton, then Kundur.

13Questions

Questions, answers and key terms

Is study here free?
Yes. Every course and learning material of Risk Academy, led by the Nexus Consortium, is free to study, self-paced or with a cohort. Ordinary participation has no fee; paid work, internships and fellowships are separate arrangements.
What does completing a course give me?
A completion record: the course, its version, the date and what was assessed, private by default and shared by you. It stacks into discipline, department and programme achievements. A record states what was studied and assessed and does not certify competence; it is not a licence, a professional title or an employment status.
Where do the data and the places come from?
Every faculty teaches on a twin of a real place built from open data; each layer carries its provider, licence and date, and every result on the Academy states its source. Maps and figures are indicators for teaching, never an assessment of a place.
How do I take part beyond the courses in energy systems and the energy transition?
Form a competence cell of three to seven people, study a shared pathway, take a supervised assignment in the National Working Groups, or bring a cohort from your institution. For organisations.

Key terms

Term

Energy security

The uninterrupted availability of energy at an affordable price.

Term

Grid balancing

Keeping electricity supply and demand matched in real time to hold frequency stable.

Term

Black start

Restarting a power system from a total or partial shutdown without external supply.

Term

Resource adequacy

Whether a power system has enough capacity to meet demand at all times with a stated reliability.

ReportsContribute

Contribute evidence from this page.

Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

Risk Academy
Energy systems and the energy transition

Start with an open course

The catalogue lists each course with its outcomes, labs, hours and level.