Search results for: “companies”
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DC-DC power converters: efficiency calculations?
DC-DC power converters are used to alter the voltage in DC circuits, such as in wind turbines, solar MPPT, batteries and digital/computing devices. This data-file is a breakdown of DC-DC power converters’ electrical efficiency, which will typically be around 95%. Losses are higher at low loads. We think there will be upside for increasingly high-quality…
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Wood products: typical pricing?
This data-file aggregates the pricing of different wood products, as storing carbon in long-lived materials matters amidst the energy transition. It can also add economic value. While upgrading raw timber into high value materials can uplift realized pricing in reforestation projects by 20-60x, which improves the permanence of nature-based CO2 removal credits.
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Development capex: long-term spending from Oil Majors?
This data-file tabulates the five ‘Big Oil’ Super-Majors’ development capex from the mid-1990s, in headline terms (billions of dollars) and in per-barrel terms ($/boe of production). Real development spending quadrupled from $6/boe in 1995-2000 to $24/boe in 2010-15, and has since collapsed to $10/boe. So one cannot help wondering about another cycle?
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Membranes for carbon capture: separation anxiety?
Next-generation membranes could separate out 95% of the CO2 in a flue gas, into a 95% pure permeate, for a cost of $20/ton and an energy penalty below 10%, which greatly exceeds the best amines. This 15-page note lays out ten key questions, to help decision makers de-risk next-generation CCS membranes. The technology is early-stage.…
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Diesel power generation: levelized costs?
A multi-MW scale diesel generator requires an effective power price of 20c/kWh, in order to earn a 10% IRR, on c$700/kW capex, assuming $70 oil prices and c150km trucking of oil products to the facility. Economics can be stress-tested in the Model-Base tab.
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Power cuts: how frequent are grid disruptions?
This data-file aggregates significant US power grid disruptions, based on data from the DOE. On average, there are 250 power cuts per year in the United States, lasting for a median average of 5-hours, and affecting a median average of 80,000 customers. 20% of the power cuts last longer than 1-day. 15% affect more than…
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Internet energy consumption: data, models, forecasts?
This data-file forecasts the energy consumption of the internet, rising from 800 TWH in 2022 to 2,000 TWH in 2030 and 3,750 TWH by 2050. The main driver is the energy consumption of AI, plus blockchains, rising traffic, and offset by rising efficiency. Input assumptions to the model can be flexed. Underlying data are from…
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CO2 intensity of materials: an overview?
This data-file tabulates the energy intensity and CO2 intensity of materials, in tons/ton of CO2, kWh/ton of electricity and kWh/ton of total energy use per ton of material. The build-ups are based on 160 economic models that we have constructed to date, and simply intended as a helpful summary reference. Our key conclusions on CO2…
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Electric vehicles: motors and magnets?
This data-file assesses electric vehicle magnets, permanent magnets and the use of Rare Earth materials such as neodymium (NdFeB). 80-90% of recent EVs have used Rare Earth permanent magnets, averaging 1.5 kg per vehicle, or 7.5g/kW of drive-train power, across the data-file. But the numbers vary vastly. From 0-4 kg per vehicle. 20 vehicles from…
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