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Search results for: “climate model”

  • Residential energy consumption over time?

    Residential energy consumption over time?

    Global residential energyย demandย runs at 2.5 MWH pp pa, of which c40% is fromย electricity, 40% is gas, c13% is biomass and c7% is oil. In ourย gasย andย powerย models, electrification rises to 65% by 2050, to help renewables reach 50% of global electricity.ย Heat pumps improve efficiency and lower primary demand in the developed world.

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  • Fans and blowers: costs and energy consumption?

    Fans and blowers: costs and energy consumption?

    Fans and blowers comprise a $7bn pa market, moving low-pressure gases through industrial and commercial facilities. Typical costs might run at $0.025/ton of air flow to earn a return on $200/kW equipment costs and 0.3kWh/ton of energy consumption. 3,000 tons of air flow may be required per ton of CO2 in a direct air capture…

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  • Boltzmann energy overview?

    Boltzmann energy overview?

    The Boltzmann constant, denoted as kB, or 1.381 x 10^-23 J/K, is the most important number in thermodynamics. It denotes the rate at which a single particle will gain thermal energy (in Joules) as its absolute temperature rises (in Kelvin). It underpins the Boltzmann distribution and the Maxwell-Boltzmann distributions, which matter in modelling gases, energy…

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  • Global polysilicon production capacity?

    Global polysilicon production capacity?

    Polysilicon is a highly pure, crystalline silicon material, used predominantly for photovoltaic solar, and also for ‘chips’ in the electronics industry. Global polysilicon capacity is estimated to reach 1.65MTpa in 2023, and global polysilicon production surpasses 1MTpa in 2023. China now dominates the industry, approaching 90% of all global capacity.

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  • CCS absorbers: unit sizing and residence times?

    CCS absorbers: unit sizing and residence times?

    Post-combustion CCS plants flow CO2 into an absorber unit, where it will react with a solvent, usually a cocktail of amines. This data-file quantifies operating parameters for CCS absorbers, such as their sizes, residency times, inlet temperatures, structural packings and the implications for retro-fitting CCS at pre-existing power plants.

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  • Storage tank costs: storing oil, energy, water and chemicals?

    Storage tank costs: storing oil, energy, water and chemicals?

    Storage tank costs are tabulated in this data-file, averaging $100-300/m3 for storage systems of 10-10,000 m3 capacity. Costs are 2-10x higher for corrosive chemicals, cryogenic storage, or very large/small storage facilities. Some rules of thumb are outlined below with underlying data available in the Excel.

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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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  • Wind and solar: what CO2 abatement costs of renewables?

    Wind and solar: what CO2 abatement costs of renewables?

    The costs of decarbonizing by ramping up solar and wind are highly dependent on context. The purpose of this data-file is to enable stress-testing of the CO2 abatement costs of renewables, in different contexts and at different grid penetrations. Our own estimate is that solar and wind can reach 40% of the global grid for…

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  • Solar module production by company?

    Solar module production by company?

    The world produced over 400GW of solar modules in 2023, which is up 10x from a decade ago. This data-file breaks down solar module production by company and over time, comparing the companies by solar module selling prices ($/kW), margins (%), efficiency (%), transparency, and technology development.

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  • Nafion membranes: costs and hydrogen crossover?

    Nafion membranes: costs and hydrogen crossover?

    Perfluorinated sulfonate (PFSA) membranes, such as Nafion, are the crucial enabler for PEM electrolyzers, fuel cells and other industrial processes. The market is worth $750M pa. The key challenges are costs, longevity and hydrogen crossover, which are tabulated in this data-file.

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