the research consultancy for energy technologies

Solar

  • Solar Superpowers: ten qualities?

    Solar Superpowers: ten qualities?

    Solar ramps from 6% of global electricity in 2023, to 35% in 2050. But could any regions become Solar Superpowers and reach 50% solar in their grids? And which regions will deploy most solar? This 15-page note proposes ten criteria and ranks 30 countries. The biggest surprises will be due to capital costs, grid bottlenecks…

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  • Solar insolation: by latitude, season, date, time and tilt?

    Solar insolation: by latitude, season, date, time and tilt?

    Solar insolation varies from 600-2,500 kWh/m2/year at different locations on Earth, depending on their latitude, altitude, cloudiness, panel tilt and panel azimuth. This means the economics of solar can also vary by a factor of 4x. Seasonality is a key challenge at higher latitudes. Active strategies are emerging for orienting solar modules.

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  • Electromagnetic energy: Planck, Shockley-Queisser, power beaming?

    Electromagnetic energy: Planck, Shockley-Queisser, power beaming?

    Electromagentic radiation is a form of energy, exemplified by light, infrared, ultraviolet, microwaves and radiowaves. What is the energy content of light? How much of it can be captured in a solar module? And what implications? We answer these questions by explaining the Planck Equation and Shockley-Queisser limit from first principles.

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  • Vapor deposition: leading companies?

    Vapor deposition: leading companies?

    This data-file is a screen of leading companies in vapor deposition, manufacturing the key equipment for making PV silicon, solar, AI chips and LED lighting solutions. The market for vapor deposition equipment is worth $50bn pa and growing at 8% per year. Who stands out?

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  • Global solar: absorption spectrum?

    Global solar: absorption spectrum?

    How much new solar can the world absorb in a given year? And are core markets such as the US now maturing? This 15-page note refines our solar forecasts using a new methodology. Annual solar adds will likely plateau at 50-100% of total electricity demand growth in most regions. What implications and adaptation strategies?

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  • Silver pastes for solar contacts?

    Silver pastes for solar contacts?

    50 companies make conductive silver pastes to form the electrical contacts in solar modules. This data-file tabulates the compositions of silver pastes based on patents, averaging 85% silver, 4% glass frit and 11% organic chemicals. Ten companies stood out, including a Korean small-cap specialist.

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  • LONGi: technology review and solar innovations?

    LONGi: technology review and solar innovations?

    This data-file is our LONGi technology review, based on recent patent filings. The work helps us to de-risk increasingly efficient solar modules, a growing focus on perovskite-tandem cells, and low-cost solar modules, with simple manufacturing techniques that may ultimately displace bottlenecked silver from electrical contacts. Key conclusions in the data-file.

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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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  • Solar inverters: companies, products and costs?

    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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  • Semiconductor physics: pièce de resistance?

    Semiconductor physics: pièce de resistance?

    Semiconductors underpin solar panels, electric vehicles and electronics. Hence this 20-page note aims to explain semiconductor physics from first principles: their conductivity and resistance, their use in devices, plus implications for materials value chains and the energy transition itself?

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