Search results for: “energy density”
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Revolutions and upheavals: are energy shortages a cause?
This data-file aims to assess whether spiking food and energy prices lead to political changes. There is a >70% chance of regime change at the next election, after food and energy prices have spiked. Links with outright revolutions are looser.
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Solar variability: how much does solar energy vary by year?
This data-file aggregates the average annual volatility of solar (and wind) resources across ten locations, mainly cities, in the United States. Annual volatility of incoming solar energy reaching ground level tends to vary by +/- 6% per year, is 96% correlated across different locations within that city, and 50-70% correlated with other cities in the…
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Energy units: life, the universe and everything?
Energy is the glue of our universe. Literally everything is at some level an energy flow – from viewing this text, to the outcomes of wars, to matter itself – which can all be expressed in Joules and kWh. Hence this 16-page overview is a useful reference, to translate from any energy units to any…
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Energy shortage: fear in a handful of dust?
Should restoring the world’s energy surplus be seen as the most important ESG goal of the 2020s? This 12-page note outlines our top ten considerations, as our energy balances have deteriorated even further in the last year. Under-supply could persist through 2030. Shortages have cruel consequences. And unexpected ripple effects. Energy surplus also helps energy…
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Energy macro: our top ten charts?
Is the global energy system on the precipice of persistent shortages, and record prices, in the mid-late 2020s? We worry that cumulative under-investment in the global energy system has now surpassed $1trn since 2015, relative to our energy transition roadmap. Our top ten slides into global energy ‘macro’ are set out in this presentation.
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Cement costs and energy economics?
This data-file captures cement costs, based on inputs, capex and energy economics. A typical cement plant requires a cement price of $130/ton for a 10% IRR, on capex costs of $200/Tpa, energy intensity of 1,000 kWh/ton and CO2 intensity of 0.9 tons/ton. Cement costs can be stress tested in the data-file.
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Alterra Energy: technology review?
Alterra Energy has steadily been refining its plastic recycling technology since 2017. The company recently signed license agreements with Neste and Freepoint. The technology is a continuous reactor, with seven discrete stages, using scavengers to remove contaminants, and patented hardware to minimize fouling and devolatilize chars.
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Pressure swing adsorption: energy economics?
Pressure swing adsorption purifies gases according to their differing tendencies to adsorb onto adsorbents under pressure. Pressure swing adsorption costs $0.1/kg when separating pure hydrogen from reformers, and $2-3/mcf when separating bio-methane from biogas. Our cost breakdowns include capex, opex, maintenance, zeolite replacement, compression power and CO2 costs.
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Omniscience: how will AI reshape the energy transition?
AI will be a game-changer for global energy efficiency, saving 10x more energy than it consumes directly, closing ‘thermodynamic gaps’ where 80-90% of all primary energy is wasted today. Leading corporations will harness AI to lower costs and accelerate decarbonization. This 19-page note explores opportunities.
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Residential energy consumption over time?
Global residential energy demand runs at 2.5 MWH pp pa, of which c40% is from electricity, 40% is gas, c13% is biomass and c7% is oil. In our gas and power models, electrification rises to 65% by 2050, to help renewables reach 50% of global electricity. Heat pumps improve efficiency and lower primary demand in the developed world.
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