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#poweroutage

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Marty Cormack

#PowerOutage
But a couple decades ago, I lived outside the city limits on a rural power cooperative with above ground infrastructure and we encountered multiple hour outages every few years. Being also on well water and having a disabled child, our contingencies were: 5 gallon filled water container and a small generator (for some lights, gas furnace fan and ignition and refrigerator).
With our climate crisis and possible deathly heat waves, air conditioning contingency may prove critical. 2/2

Marty Cormack

#PowerOutage
Reading about the Spain/Portugal widespread and lengthy power outage got me thinking again about contingencies. I live in a city with a large medical center and multiple tech industries, and robust electric power infrastructure. I cannot recall a power outage lasting more than a few minutes in multiple decades. So our contingencies are just battery backups for computer, Wi-Fi, and TV so a 5 minute outage does not even disrupt anything we're doing. 1/x

ℒӱḏɩę :blahaj: 💾

The Spain/Portugal power outage is fascinating to me, as an energy storage professional.

Lots of theories flying around about the cause. Atmosphere, cyberattack, renewables.

Power grids keep balance via their AC frequency. In the US, it's 60Hz. If the frequency is a little above 60, then there is a surplus of generation. If the frequency is below 60, there is a surplus of demand. Generators and loads respond to this - it's called frequency response.

Last year in Virginia, in data center alley, there was a frequency disturbance that caused a large number of data centers to drop off the grid onto backup power, leaving a huge surplus of generation. It almost collapsed PJM. (I'm actually working on a project to mitigate this using very large batteries).

Spain lost 15GW of generation in seconds. My speculation is frequency went out of spec, for whatever reason, which caused a ton of solar and wind generators to island themselves, and the situation amplified itself. #theory #spain #poweroutage

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