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Search results for: “power factor”

  • NET Power: gas-fired power with inherent CO2 capture?

    NET Power: gas-fired power with inherent CO2 capture?

    Our NET Power technology review shows over ten years of progress, refining the design of efficient power generation cycles using CO2 as the working fluid. The patents show a moat around several aspects of the technology. And six challenges at varying stages of de-risking.

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  • MOSFETs: energy use and power loss calculator?

    MOSFETs: energy use and power loss calculator?

    MOSFETs are fast-acting digital switches, used to transform electricity, across new energies and digital devices. MOSFET power losses are built up from first principles in this data-file, averaging 2% per MOSFET, with a range of 1-10% depending on voltage, switching, on resistance, operating temperature and reverse recovery charge.

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  • Gas power: levelized costs of combined cycle gas turbines?

    Gas power: levelized costs of combined cycle gas turbines?

    Levelized costs of combined cycle gas turbines are built up in this data-file. Our base case costs of gas-fired power generation are 8c/kWh, at a combined cycle turbine converting 55% of the thermal energy of natural gas into electrical energy, for a total CO2 intensity of 0.35 kg/kWh.

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  • Capacitor banks: the economics?

    Capacitor banks: the economics?

    This model captures the economics of power factor correction via installing capacitor banks upstream of inductive loads. A 10% IRR is derived from a system costing $30/kVAR, reducing real power losses by 0.5%, thus saving on 8c/kWh electricity prices (75% of savings), $3.5/kW demand charges (15%) and a $20/ton CO2 price (10%).

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  • Thermal power plant: loss attribution?

    Thermal power plant: loss attribution?

    This data-file is a simple loss attribution for a thermal power plant. For example, a typical coal-fired power plant might achieve a primary efficiency of 38%, converting thermal energy in coal into electrical energy. Our loss attribution covers the other 62% using simple physics and industry average data-points.

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  • Power cables: carrying capacity and loss rates?

    Power cables: carrying capacity and loss rates?

    This data-file calculates the power carrying capacity of power cables, plus the resistive losses of power cables. Both are modeled as a function of their voltage, current density, copper and/or aluminium content, resistance and connection type. Underlying data are drawn from data we have tabulated on over 100 conductors, their ratings and costs.

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  • US gas power: generation by facility over time?

    US gas power: generation by facility over time?

    US gas power generation by facility is broken down in this data-file, across 1,850 active gas-power plants, supplying 40% of all US electricity. Descriptive statistics are available in the summary tab, a state-by-state breakdown follows in the PlantsByState tab and underlying data on all 3,000 historical facilities are provided in the AllGasPlants tab.

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  • Prysmian E3X: reconductoring technology?

    Prysmian E3X: reconductoring technology?

    Prysmian E3X technology is a ceramic coating that can be added onto new and pre-existing power transmission cables, improving their thermal emissivity,so they heat up 30% less, have 25% lower resistive losses, and/or can carry 25% increased currents. This data-file locates the patents underpinning E3X technology, identifies the materials used, and finds a strong moat.

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  • Power plants: average capacity?

    Power plants: average capacity?

    This data-file aggregates granular data into the average capacity of different types of power plants: wind, solar, nuclear, gas, hydro, coal, biomass, landfill gas and geothermal. Energy transition is going to increase the number of inter-connections to the grid by 10-100x.

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  • Solar generation: minute by minute volatility?

    Solar generation: minute by minute volatility?

    The volatility of solar generation is evaluated in this case study, by tracking the output from a 275MW solar project, at 5-minute intervals, throughout an entire calendar year. Output is -65% lower in winter than summer, varies +/-10% each day, and +/- 5% every 5-minutes, including steep power drops that in turn require back-ups.

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