Search results for: “renewables”
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Turquoise hydrogen from methane pyrolysis: economics?
Turquoise hydrogen is produced by thermal decomposition of methane at high temperatures, from 600-1,200◦C. Costs can beat green hydrogen. This data-file quantifies the economics (in $/kg), how to generate 10% IRRs, possible capex costs, and remaining challenges for commercialization.
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Moore’s law: causes and new energies conclusions?
Moore’s law entails that computing performance doubles every 18-months. Which has held true since 1965. This exponential progress has been driven by three positive feedback loops. Can these same feedback loops unlock a similar trajectory for new energies costs? We find mixed evidence.
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Solar power: decommissioning costs?
This data-file aims to break down the costs of decommissioning solar projects. Gross costs are estimated within a range of $0.03-0.20/W, which is around 3-20% of the initial installation costs. What might help is the ability to re-use old panels, which could possibly even allow a small profit at end-of-life.
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Solar inverters: companies, products and costs?
This data-file tracks some of the leading solar inverter companies and inverter costs, efficiency and power electronic properties. As China now supplies 85% of all global inverters, at 30-50% lower $/W pricing than Western companies, a key question explored in the data-file is around price versus quality.
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Siemens Gamesa: giant wind turbine breakthroughs?
Siemens Gamesa is a leader in offshore wind, pushing the boundaries towards a 14MW turbine with an incredible 222m rotor diameter. Our main debate from reviewing its patents is whether the engineering challenges of large turbines is consistent with deflation expectations.
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Windy physics: how is power of a wind turbine calculated?
This data-file is an overview of wind power physics. Specifically, how is the power of a wind turbine calculated, in MW, as a function of wind speed, blade length, blade number, rotational speed (in RPM) and other efficiency factors (lambda). A large, modern offshore wind turbine will have 100m blades and surpass 10MW power outputs.
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Offshore wind: will costs follow Moore’s Law?
Some commentators expect the levelized costs of offshore wind to fall another two-thirds by 2050. The justification is some eolian equivalent of Moore’s Law. Our 16-page report draws five contrasts. Wind costs are most likely to move sideways, even as the industry builds larger turbines. Implications for developers are explored.
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Small-scale wind turbines: leading companies?
This screen compares the offerings of a dozen small-scale wind turbine providers, with power ratings below 30kW, for residential energy generation. Costs range from $1,000-6,000/kW. The three key challenges are performance, relaibility and cost.
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Shoals: solar-electronic breakthrough?
Shoals Technologies Group manufactures electrical balance of system solutions for solar energy projects, focused on promoting reliability, safety and ease of installation. Electrical installation costs can be lowered 40%. Our patent review finds a technology moat on 35% EBITDA margins.
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Inter-correlations between solar assets?
This data-file aggregates granular data from seven solar assets around Western Europe over a sample week. Absolute volatility is around 2-4% of nominal capacity every 15-minutes, while inter-correlations range from 60-90% depending on the distance between the different assets.
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