Search results for: “power factor”
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Energy intensity by country: how does it change as income increases?
This data-file assesses 25 countries’ and regions’ energy consumption, as those countries developed over the past 50-years. Early industrialization is most energy intensive, rising 1:1 with GDP growth. In developed countries, energy use plateaus at c25MWH pp pa and decarbonization priorities step up sharply.
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Fuel cells: performance, efficiency and decline rates?
This data-file captures the performance of c160 fuel cell power plants, installed to-date in the US, generating over 2TWH of electricity, looking facility-by-facility, year-by-year. How has the performance, efficiency and longevity of US fuel cell power plants been trending over time?
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UK grid volatility as renewables gain share?
This data-file contains the output from some enormous data-pulls, evaluating UK grid power generation by source, its volatility, and the relationship to hourly traded power prices. We conclude the grid is growing more expensive and volatile, with the increasing share of wind.
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Prysmian: power cable technology breakthroughs?
Prysmian scores well on our patent assessment framework. We conclude an array of incremental improvements and industry specializations confer a partial moat and helps to de-risk future installation work.
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Hillcrest: ZVS inverter breakthrough?
Hillcrest Energy Technologies is developing an ultra-efficient SiC inverter, which has 30-70% lower switching losses, up to 15% lower system cost, weight, size, and thus interesting applications in electric vehicles. How does it work and can we de-risk the technology?
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California power generation over time?
California’s power grid ranges from 26-61GW of demand. Utility scale solar has almost quadrupled in the past decade, rising from 5% to almost 20% of the grid. Yet it has not displaced thermal generation, which rose from 28% to 36% of the grid. We even wonder whether wind and solar are entrenching natural gas generators…
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Gas power generation across five-minute intervals?
Power generation data are aggregated for ten of the largest CCGTs and gas peaker plants in Australia, across five-minute intervals, May-2024 and May-2014. This makes for a fascinating case study into how gas turbines are used to stabilize power grids, backstop renewables, and how this has changed over time.
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Coal-to-gas switching: what CO2 abatement cost?
Coal-to-gas switching halves the CO2 emissions per unit of primary energy. This data-file estimates the CO2 abatement costs. Gas is often more expensive than coal. But as a rule of thumb, a $30-60/ton CO2 price makes $6-8/mcf gas competitive with $60-80/ton coal. CO2 abatement costs are materially lower in the US and after reflecting efficiency.…
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Coal power generation: minute-by-minute flexibility?
Coal power generation is aggregated in this data-file, at the largest single-unit coal power plant in Australia, across five-minute intervals, for the whole of 2023. The Kogan Creek coal plant produces stable baseload power, with average utilization rate of 85%. But it exhibits lower flexibility to backstop renewables than gas-fired generation.
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Thermodynamics of CO2 at different temperatures and pressures?
This data-file aggregates thermodynamic properties of CO2 at different temperatures and pressures. Specifically, how do different pressures and temperatures dictate CO2’s density, Cp, Cv, Heat Capacity Ratio (gamma), Entropy, and Compressibility. These variables matter for CO2 compression, CCS and sCO2 power cycles.
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