April 14, 2021
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Frequency Freak-out: Chaotic Wind & Solar Threaten to Cripple Europe’s Power Grid
Electricity grids are like a living organism and their day-to-day survival is a finely tuned operation.
Balancing supply to match demand on an instantaneous basis, is part of the trick. However, the maintenance of the required frequency (50Hz in most cases) within a narrow and defined tolerance has become a nightmare of continental proportions, thanks to the chaotic and occasional delivery of wind and solar.
A drop or surge in frequency not only fries circuits and incapacitates machines connected to the power grid, but the switching gear and circuits, within it. In that respect, adding more wind and solar capacity over time, only adds to the potential for a total grid collapse.
Congress Extends Carbon-Capture Incentives – Free Press of Jacksonville
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Congress Extends Carbon-Capture Incentives
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WASHINGTON – While renewable energy is seeing significant growth across the country and around the world, supporters of coal are still finding backers in Congress who included key support for the industry in the federal government’s year-end spending plan.
In legislation that brought together economic stimulus programs along with continued funding of the federal government, Congress included several provisions that would advance so-called carbon capture, utilization and storage (CCUS) technology, which offers the potential to use coal for electricity production while significantly reducing carbon emissions.
Specifically, the legislation extends and expands key tax credits for CCUS technology that can help fund the nascent technology as researchers, utilities and other energy concerns continue developing it for wide-scale commercial use. Since the legislation passed, the Int
Rick Rickst29 on January 31 2021 said: I know a bit about Inverter technology. When the Grid is presenting a stable frequency clock to attached DC >AC inverters (attached to Solar Panel Arrays, and to Large Battery storage systems) and to AC >AC Converters involved in some grid-direct wind systems, the inverters and Converters very quickly adapt their outputs to match the 50 Hz AC supply frequency and phase, as presented by the Grid. (60-cycle in the USA in some other countries, of course)
That is a basic requirement imposed on all grid connected Inverters (including my own).
There is insufficient battery capacity to run grid loads from battery storage (alone) through the night in any large region of the Grid. While a Battery Array is able to provide energy at the correctly inverted frequency phase (SEE ABOVE), its inverters will provide that energy in-phase. If you try to overrun the battery, it should shut down. That Grid demand must be pulled in from elsewhere, or dema
Are oil majors ready to become part of the climate-change solution?
DUBAI, January 27, 2021 The list of companies making deep pledges on the environment is growing longer by the day, the latest entrant being the oil majors. About one-quarter of Fortune 500 businesses now have carbon-neutral targets, with heavyweights such as Danone, Unilever and Vodafone leading the European charge, writes Iain Pyle, Investment Director, Aberdeen Standard Investments. Could it really be that some of the world s biggest polluters are ready to become part of the climate-change solution? Investing along environmental, social and governance (ESG) lines has moved to the mainstream. Therefore, this question has potentially big implications for the debate round which companies qualify for a place in a sustainable portfolio. Many of the majors now argue that they should be included.
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