Search results for: “\"redox flow\"”
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Redox flow batteries: costs and capex?
Redox flow battery costs are built up in this data-file, especially for Vanadium redox flow. In our base case, a 6-hour battery that charges and discharges daily needs a storage spread of 20c/kWh to earn a 10% IRR on $3,000/kW of up-front capex. Longer-duration redox flow batteries start to out-compete lithium ion batteries for grid-scale…
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Leading Companies in Redox Flow Batteries
We have compiled a database of 25 leading companies in Redox Flow Batteries, by looking across 1,237 patents since 2017. Exciting progress is visible, with technical maturity rapidly progressing, demonstration facilities under construction and a promise of cost-competitive, long-life, energy storage.
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Redox flow batteries: for the duration?
Redox flow batteries have 6-24 hour durations and require 15-20c/kWh storage spreads. They will increasingly compete with lithium ion batteries in grid-scale storage. Does this unlock a step-change for peak renewables penetration? Or create 3-30x upside for total global Vanadium demand? This 15-page note is our outlook for redox flow batteries.
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ESS: redox flow battery breakthrough?
ESS is emerging as a leader in medium-duration energy storage (4-12 hours), with an iron flow battery costing 2-5c/kWh (assuming >daily cycling) and lasting 20,000 cycles. The patent library is high quality. We note five challenges to consider. The largest is round-trip efficiency.
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Electrochemistry: battery voltage and the Nernst Equation?
What determines the Voltage of an electrochemical cell, such as a lithium ion battery, redox flow battery, a hydrogen fuel cell, an electrolyser or an electrowinning plant? This note explains electrochemical voltages, from first principles, starting with Standard Potentials and the Nernst Equation.
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Renewable grids: solar, wind and grid-scale battery sizing?
How much wind, solar and/or batteries are required to supply a stable power output, 24-hours per day, 7-days per week, or at even longer durations? This data-file stress-tests different scenarios, with each 1MW of average load requiring at least 3.5MW of solar and 3.5MW of lithium ion batteries, for a total system cost of at…
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Battery Patents: Lithium Leaders and New Breakthroughs?
Continued deflation in lithium ion batteries is suggested by a new record of 26,000 patents filed in 2019, hence this data-file identifies the technology leaders. Elsewhere, redox flow batteries patents have doubled since 2014, while interest has been waning in solid state batteries (-57% since 2014) and liquid metal batteries (-67%).
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Grid-scale battery costs: the economics?
Grid-scale batteries are envisaged to store up excess renewable electricity and re-release it later. Grid-scale battery costs are modeled at 20c/kWh in our base case, which is the ‘storage spread’ that a LFP lithium ion battery must charge to earn a 10% IRR off $1,200/kW installed capex costs. Other batteries can be compared in the…
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Levelized cost of electricity: stress-testing LCOE?
This data-file summarizes the levelized cost of electricity, across 35 different generation sources, covering 20 different data-fields for each source. Costs of generating electricity can vary from 2-200 c/kWh. The is more variability within categories than between them. Numbers can readily be stress-tested in the data-file.
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Energy storage: top conclusions into batteries?
Thunder Said Energy is a research firm focused on economic opportunities that can drive the energy transition. Our top ten conclusions into batteries and energy storage are summarized below, looking across all of our research.
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