Energy of rotation: angular momentum, inertia and flywheels?
…are moving in a straight line. Moment of Inertia can be captured via equations. For example: I = k M (R^2). Where I is moment of Inertia (kg-m2), M is…
Goldwind: frequency response from wind turbines?
…11,000 employees, and shares are publicly listed. The wind industry is increasingly aiming to mimic the inertia and frequency response of synchronous power generators. Goldwind has published some interesting case…
Power grids: opportunities in the energy transition?
…slightly. This sorcery is called ‘inertia’. Wind and solar do not inherently have any inertia (no synchronized spinning). But there are ways of partially mimicking inertia or adding synthetic inertia…
Power grids: tenet?
How do power grids work? How will they be re-shaped by renewables? This 20-page note outlines the underpinnings of electricity markets, from theoretical physics through to looming shortages of ‘inertia’…
Power grids: tenet?
How do power grids work? How will they be re-shaped by renewables? This 20-page note outlines the underpinnings of electricity markets, from theoretical physics through to looming shortages of ‘inertia’…
Synchronous condensers: the economics?
This data-file captures the costs and the economics of installing a synchronous condenser, downstream of a renewable power facility, in order to emulate some of the inertia, reactive power and…
Switching gears: the most potent GHG in the world?
…example, wind and solar are more volatile than conventional generation. They do not inherently provide any inertia or reactive power. For an explanation of these effects, and an example of…
Electric motors: variable star?
…the range of 1-5 years, depending on power prices and CO2 prices. Improved resiliency in renewable-heavy grids is a further advantage, protecting against voltage sags, lack of inertia, trips and…
Power functions: how would gas shortages change the cost curve?
…lack of inertia, reactive power and fault current (notes below). https://thundersaidenergy.com/2021/09/16/power-grids-tenet/ https://thundersaidenergy.com/downloads/power-electronics-problems-and-solutions/ A final issue with wind and solar is that they may see some inflation in their future costs….
Levelized cost: ten things I hate about you?
…good comparison should compare apples to apples, which in electricity markets, includes reliability, flexibility, inertia, reactive power, and other power quality components. Our view is that these values, or the…