Search results for: “power electronics”
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Power electronics: market size in energy transition?
We describe c15 problems incurred by industrial and commercial power consumers. Many will require additional investment as renewables replace the large rotating generators of traditional power grids. Hence we see the market for commercial and industrial power electronics trebling from $360bn pa in 2021 to $1trn pa by 2035.
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Power grids: opportunities in the energy transition?
Power grids move electricity from the point of generation to the point of use, while aiming to maximize the power quality, minimize costs and minimize losses. Broadly defined, global power grids and power electronics investment must step up 5x in the energy transition, from a $750bn pa market to over $3.5trn pa. But this theme…
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Eaton: breakdown of revenues by product category?
Eaton is a power-electronics super-giant, listed in the US, employing 86,000 people, generating $20bn per year of revenues. We have aimed to guess how $20bn pa of net sales is distributed across 200 different product categories. 75% is exposed to power-electronics, with tailwinds in the energy transition.
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Renewables: how much time to connect to the grid?
Is the power grid becoming a bottleneck for the continued acceleration of renewables? The median approval time to tie a new US power project into the grid has climbed by 30-days/year since 2001, and doubled since 2015, to over 1,000 days (almost 3-years) in 2021. Wind and solar projects are now taking longest. This data-file…
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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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MOSFETs: energy use and power loss calculator?
MOSFETs are fast-acting digital switches, used to transform electricity, across new energies and digital devices. MOSFET power losses are built up from first principles in this data-file, averaging 2% per MOSFET, with a range of 1-10% depending on voltage, switching, on resistance, operating temperature and reverse recovery charge.
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SolarEdge: solar-electronics breakthrough?
SolarEdge specializes in the power-electronics needed to use solar energy in practical power systems. Our patent review finds a good, but broad array of incremental improvements. They suggest a vast future market in solar-battery energy systems.
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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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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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Goldwind: frequency response from wind turbines?
Goldwind is one of the largest wind turbine manufacturers in the world, headquartered in Beijing, and shares are publicly listed. The wind industry is increasingly aiming to mimic the inertia and frequency responses of synchronous power generators. Goldwind has published some interesting case studies. Hence we have reviewed its patents to see if we can…
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