Under the paper's central assumptions, vanadium redox flow batteries reach lifetime cost parity with lithium iron phosphate at about sixteen hours of duration.
Evidence status: Modelled. Sensitivity: high. Depends on GSX:IND-004:A01, GSX:IND-004:A02. Sixteen hours is a model result, not a physical law. Cheap lithium, low cycling, high interest rates or poor flow-battery performance move the crossing later. The first market in the manuscript is roughly twelve to twenty-four hours, not the four-hour lithium market.
C01
Related questions
How does grid storage create a home market for vanadium?
What industrial economy is built around vanadium and electricity storage?
3
Assumptions
Assumptions
These are the registered model assumptions. A result stays conditional on the ones a claim names.
A01Resource positionThe manuscript uses USGS figures of about 5,000 tonnes of South African vanadium production in 2025, roughly 4.5 percent of estimated world output, and about 520,000 tonnes of reported reserves, around 2.5 percent of the world total.5000 tonnes of vanadium produced in 2025
A02Central cost assumptionsLifetime cost parity is reported under the paper's central assumptions about lithium cost, cycling, interest rates and flow-battery performance.qualitative not a scalar
A03Electrolyte scaleBELCO was designed for eight million litres a year. A single 100 MW, ten-hour project in the model needs about fifty million litres.50 million litres for one 100 MW, ten-hour project
1
Model
Model
The registered model statement. It is a scenario model, and the manuscript remains the full specification.
M01Duration comparison with lithium iron phosphateThe model compares vanadium redox flow batteries with lithium iron phosphate across storage duration under stated cost, cycling and finance assumptions.GSX:IND-004:M01
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Results
Results
Modelled scenario results. They are not forecasts.
R0116 hours of storage durationUnder the central assumptions, lifetime cost parity with lithium iron phosphate appears at about sixteen hours.Central cost comparison
R0250 million litresOne 100 MW, ten-hour project needs about fifty million litres of electrolyte, more than six years of BELCO's eight-million-litre design output.Single 100 MW, ten-hour project
Sensitivity
High · 1
Moderate · 1
Low · 0
Limitations
Sixteen hours is a model result, not a physical law. Cheap lithium, low cycling, high interest rates or poor flow-battery performance move the crossing later. The first market in the manuscript is roughly twelve to twenty-four hours, not the four-hour lithium market.
Domestic storage targets create a chance to compete. They are not an order book for vanadium batteries. Factory capacity is not demand.
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Claims
Claims
Each claim names the assumptions it uses and the limitation that travels with it.
C01GSX:IND-004:C01Under the paper's central assumptions, vanadium redox flow batteries reach lifetime cost parity with lithium iron phosphate at about sixteen hours of duration.Modelled · high sensitivity
C02GSX:IND-004:C02A single 100 MW, ten-hour project in the model needs more electrolyte than several years of the cited BELCO design output. One electrolyte facility is a base, not a full industrial ecosystem.Modelled · moderate sensitivity
Sources and reproducibility
The PDF and complete Markdown source are both published.
Full manuscript: 7 506 words across 50 indexed headings. Source checksum: b71910612cb6…. Code recorded: yes. Data recorded: yes. Environment recorded: no. Published files: 3. the published statement does not rely on a recorded random seed A public code repository is not published.
