Solar PV (4 Viewers)

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my total knowledge of how electricity grids works comes from watching these two videos. and it was an eye-opener how much of a clusterfuck it *would* have been if the texas power grid *had* gone offline.

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It's funny, I had never really thought about all that's involved in running an electricity grid until I met someone who's involved in it. There's just a MASSIVE amount of specialised engineering work that has to be co-ordinated over a very wide region, and it's a stable (and well-paid) career for nerds that I never even realised existed
 
Getting spuds from a seed to a shop shelf includes Physical labour and machines with moving parts that break down and machines that transport products and more physical labour. the point I was trying to make was it's a bit of a reach of a comparison
yes
 
generated 10kwh Friday, 17 Saturday, and 20 yesterday.

Still trying to figure out the best routine, so right now we’re charging both the house & car batteries and running the dishwasher & washing machine between 2-4am. (The house battery takes under the two hours to charge & then stops but i configured its charging time to be from 2am until 8am so it won’t start to discharge before then - keeping the stored cheapest rate power for use instead of peak daytime rate). The idea then is to do anything else that might substantially drain the battery before early afternoon so that it has a chance to top up again & keep us going until as close to the 11pm off peak rate again as possible.

This month’s bill is on track to be substantially lower than last months.


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Edit: 28th April was when we switched to the smart meter tariff.

Edit 2: we’re also still exporting a load of electrons FOR NOTHING

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Got our first microgeneration credit today. There was a delay with the nc6 form so we only got credited for the last 3 days of the billing period, but €3.57 is €3.57 so I’m not complaining.

This month’s electricity bill is the first one since the solar pv went in and is
  • €120 lower than last months, which was our first month on the smart meter super cheapo overnight rate, and
  • €200 lower than the month before that, which was the final month on the non-smart tariff
 
How much lower is your bill than pre-solar PV, @pete ?
- about €200 lower than the pre-Smart Tariff bill (€347 over 36 days to vs €146 over 30 days)

- about €120 lower than the Smart Tariff-but-pre-Solar PV bill (€267 over 30 days vs €146 over 30 days)

One other factor is our billing period starts on the 29th of the month but our solar didn’t arrive until late on 3rd June so about 6 days of the latest bill saw no PV benefit.
 
Oh and in case anyone is curious we got ours from Ecoplex. Let me know if you want a contact email.
 
- about €200 lower than the pre-Smart Tariff bill (€347 over 36 days to vs €146 over 30 days)
So your bill has been cut by 75%? That's a pretty radical cut! Wow though, you sure do use a lot of electricity - I think our highest monthly bill (before we got an EV) was around the EUR200 mark. Do you have a heat pump?
 
So your bill has been cut by 75%? That's a pretty radical cut! Wow though, you sure do use a lot of electricity - I think our highest monthly bill (before we got an EV) was around the EUR200 mark. Do you have a heat pump?
Nope just a lot of EV driving/charging plus stuff like PC on all day etc.

A lot of that saving came from moving as much stuff as possible (like EV charging) to the 2am-4am lowest-rate window anyway - no PV needed.

Adding the 5kwh house battery would save 4.5*(peak kWh cost - cheapo kWh cost) every day - again, technically no PV necessary.
 
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