Search results for: “climate model”
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Solar water heaters: the economics?
Under our base case estimates, a $130/ton CO2 price is required to achieve passable economics and incentivize rooftop solar heaters. Once installed, solar heaters save around 1T of CO2 per household per year and lower water heating bills by 50-80%. This data-file models the economics.
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Biomass to biofuel, or biomass for burial?
Greater decarbonization at a lower cost is achievable by burying biomass (such as corn or sugarcane) rather than converting it into bio-ethanol. This model captures the economics. Detailed costs and CO2 comparisons are shown under different iterations.
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Green hydrogen: the economics?
We have modelled the economics of a green hydrogen project, electrolysing water using renewable energy. An H2 price of $8/kg ($60/mcfe) is required to earn a 10% return. Costs data are captured. The most challenging input variable is not capex cost or efficiency, but utilization rate, if the project is to be truly green.
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District heating: the economics?
District heating can lower CO2 intensity, by piping waste heat from power generation or industry to consumers. Costs can vary by a factor of 10x. But our base case estimates a 10% IRR at 10c/kWh retail heating price. Please download the model to flex gas prices, household consumption rates or costs.
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Coal-to-Power Project Economics
Greenfield coal-to-power economics vary markedly by region. IRRs can reach 30% in emerging markets with low capex costs, high utilization and no carbon prices. But they fail to return their capital costs under developed world air standards and $25/ton CO2 pricing. Please download the model to stress-test the economics.
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Flare gas capture: the economics?
c150bcm of gas was flared globally in 2019. This data-file simplifies the economics of capturing flare gas. Generally, double-digit IRRs are achievable at large new shale pads. But costs are more challenging at smaller sites, remote pads or for contaminated gas. Carbon prices would dramatically improve economics. A $100/ton CO2 price could potentially eliminate US…
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Levelized cost of electricity: stress-testing LCOE?
This data-file summarizes the levelized cost of electricity, across 35 different generation sources, covering 20 different data-fields for each source. Costs of generating electricity can vary from 2-200 c/kWh. The is more variability within categories than between them. Numbers can readily be stress-tested in the data-file.
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Afforesting deserts: energy economics?
We model the economics of afforesting deserts by desalinating and distributing sufficient water for trees to grow. The best economics are achievable in the Permian, with 10% IRRs at $30/ton CO2 prices. But the energy economics cannot work to green the world’s most hyper-arid deserts, such as the Sahara.
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Organic Rankine Cycles: the energy economics?
This data-file captures the energy economics of an Organic Rankine Cycle to recover low-grade waste heat (at 70-200C) from an industrial facility, or in the geothermal industry. A CO2 price of $50-75/ton could greatly accelerate adoption and improve the efficiency of industrial facilities.
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Combined heat and power: the economics?
This data-file models the energy economics of a combined heat and power installation, to provide electricity and heating behind the meter, in lieu of purchasing electricity from the grid. Economics are strong, especially for larger units. CO2 emissions can also be reduced by 5-30% due to high efficiency.
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