That's one way to cook a Cheap Shit LED lamp

That's about right. My supply voltage hovers around 252v most of the time. "230v" is a myth

Mine's hovering around 249v atm!

I had this problems when they upgraded distribution lines from 7.2 kv to 14.4 KV and substation is only 33 percent loaded at time of upgrade. the line voltage would be around 135 volts at night. thing is i am close to substation. they had to fix this by adding a automatic tap changer to transformer.

WOW! I need to get a new meter! Feels like i'm missing a a bit of history here!

This is hardly a new meter lol. I think this model was introduced in about 1997. I got it from a mil surplus store on ebay several years ago.

My meter is an old radio shack analogue jobbie, think i might need to move with the times

Many wind turbines around your area mark? One of the Wpd guys was telling me that all the renewables are bad for the grid and have dirty unstable signwaves. Mine up 250 too!

Shitloads off the coast. Aparently renewables like wind and solar are a right pain in the arse for the guys at the national grid because its so unpredictable. As more and more power is generated that way the harder is it to ballance the grid. Imagine all the power being generated by solar and wind and then the sun goes behind the clouds and the wind dies down... coal and nuclear cant respond fast enough so it's up to pumped storage hydroelectric to take up the slack. It's only going to get worse too.

Dirty sinewaves = crap inverters from China, it's not the panels or turbines fault. Allthough i very doubt that this makes a problem of national scale (do the big farms use the same crappy inverters as well ?)

As for being unstable (this have nothing to do with sine wave), there are enough "ballast" loads on the grid which you can regulate in order to compensate for the fluctations in real time, such as water distillation (over here its big load on a national scale), pumping the water up the pumped storage, and in the near future even charging EV's (when left connected to the grid for far longer than the minimal charging time)

Here in Texas, It home of largest wind farms in the US. this electricity stays in Texas as Texas have there own grid. there are some days esp in spring or the fall months wind power will crank out 40 percent of state power grid at night. it in the wind belt of texas where it blows best at night time. the grid is always watching weather forcast to know when to spin up power plants to meet those demands. now when there surplus power they will try to sell power to other grids in USA or Mexico when they need it.

Well thats not what the engineers told me when I was at the Dinorwig hydroelectric power station.

The wind turbines done have inverters most of the ones here are straight from the generator through a contractor on to the grid apart from the direct drive ones that use a a massive 500KW IGBT chip. As for the solar inverters they are all good brands here SMA auraura solaredge etc

Our grid is hard to balance at the best of times as we have what’s called a TV pickup which is probably unique to this country, in which millions of 3kw electric kettles are all switched on at the same time after popular TV programs such as soaps end which leads to massive spikes in demand. Half-time at football matches also create massive surges. If it wasn’t for our pumped storage hydroelectric plants, we’d be screwed!

In the Gulf war in 1991, it was expected that Israel might get hit with chemical/bio missiles from Iraq, so the instructions given for in case of an air raid alarm were (among others) to close up in a room (sealed up with scotch) and switch off the air conditioning. This was in January - lots of air cons working as heat pumps everywhere. Missiles from Iraq were fired and the alarm was sounded in all the country at once. The grid did not cope with the sudden drop of load and generation frequency started to go up. Plant controls acted to compensate it, overcompensated, the frequency went down below the safe threshold and the plant protections dumped the entire grid

In my hostel, we have three phases. Two have average of 220V and sometimes drops down to 210, and one have stable 230 with only minor changes.

@Ash: I don't remember any brownout/power outage happened in my mother home, during the Gulf war.

@FrontSideBus: All of our electric kettles are 2KW, and takes 5-6 min to boil water.