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Research draft

energy storage

vr.tr.energy-storage · ACT.ACT

Let an agent explain energy storage and its technologies, relay principles, performance measures and roles in energy systems from engineering and policy sources, describe the technologies the registry aliases name, and distinguish energy storage from energy generation, energy efficiency and fuel reserves.

Thing Registry Activities and processes

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent explain energy storage and its technologies, relay principles, performance measures and roles in energy systems from engineering and policy sources, describe the technologies the registry aliases name, and distinguish energy storage from energy generation, energy efficiency and fuel reserves.

The capture of energy produced at one time for use at a later time, by means such as batteries, pumped hydro, compressed air and compressed carbon dioxide storage, flywheels, thermal storage with phase-change materials, solar thermal fuels that store sunlight chemically, hydrogen and other fuels; energy storage involves charging, discharging and optimisation of the cycle and is central to integrating variable renewable energy into power systems.

What it is for: Storing energy for later use.

It can be explain the concept; relay technologies and measures; describe grid roles; distinguish related concepts.

Distinguishing features

Time shifting

Many technologies

Charge and discharge cycle

Grid integration

What it looks like

Not a visible object; batteries, reservoirs, tanks and flywheels.

Physical character

pumped hydro share of grid storage: about 90 percent - by capacity, 2020s

lithium-ion round-trip efficiency: about 85-95 percent

global battery storage capacity: tens of GW note - growing rapidly

How it is recognised

Capture of energy for later use

Battery storage, pumped hydro, compressed CO2 storage, phase-change materials, solar thermal fuels, charging and discharge optimisation

Generation produces energy; efficiency reduces need; fuel reserves are stockpiles

Related models

is a kind of - in registry terms

storage

is a kind of - in registry terms

physical process

is exemplified by - the largest form

pumped-storage hydroelectricity

supports - integration

renewable energy

In practice

Families and kinds

electrochemical storage such as batteries

mechanical storage such as pumped hydro, compressed air, compressed CO2 and flywheels

thermal storage including phase-change materials and solar energy accumulation

chemical storage such as hydrogen and solar thermal fuels

electrical storage such as capacitors

charge and discharge optimisation as operation

Standards and regulation

Grid codes and market rules for storage

Battery safety standards such as IEC 62619 and UL 9540

Building codes for thermal storage

Failure modes and hazards

Battery fires

Confusing storage with generation

Registry aliases mixing technologies and operations

Also called

solar thermal fuelphase-change materialcharge/discharge optimizationchargingcompressed carbon dioxide energy storagesolar energy accumulationnatural gas storagegravity batterygrid energy storagepower-to-Xthermal energy storageenergy storage facilitySmart chargingGroup of storage facilitiesCavern Underground Gas Storagehydraulic accumulatorthermal batteryseasonal thermal energy storageSteam accumulatorsand battery

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Understand What energy storage is.

Science.

Definition

Definition.

Definition

Definition.

  1. What is energy storage, and how does it differ from generation, efficiency and fuel reserves? definition
  2. Is the question about the concept, a technology, grid roles or policy? boundary

Technologies

Technologies.

Technologies

Technologies.

  1. What are batteries, pumped hydro, compressed air and CO2 storage, flywheels, phase-change materials and solar thermal fuels? definition
  2. Which entry fits the specific technology? action
Engineering Engineering.

Science.

Measures

Performance measures.

Measures

Measures.

  1. What are capacity, power, efficiency, duration and cycle life? provenance
  2. Which references are standard? provenance

Operation

Operation.

Operation

Operation.

  1. How are charging and discharging optimised for cost and grid services? provenance
  2. Which sources are cited? provenance
Systems Energy systems.

Application.

Grid

Grid.

Grid

Grid.

  1. How does storage support renewable integration and grid stability? provenance
  2. Which entry fits grid energy storage? action

Policy

Policy.

Policy

Policy.

  1. How do markets and regulation treat storage, with debates attributed? provenance
  2. Which entry fits energy policy? action
Context Frontiers and history.

Context.

Frontiers

Frontiers.

Frontiers

Frontiers.

  1. What are long-duration storage, solar thermal fuels and compressed CO2 systems? provenance
  2. Which entry fits long-duration energy storage? action

History

History.

History

History.

  1. How did energy storage develop from early batteries and pumped hydro? provenance
  2. Which entry fits the history of the battery? action

What the second pass must settle

  • Should battery storage and thermal storage be separate primary entries?
  • How should engineering and policy sources be linked?
  • The registry entry has merged aliases naming technologies and operational tasks; should they be split off?
Draft as JSON