What are you working on? Feb 2021

danb35 · February 28, 2021, 12:54am

This:

pike · February 28, 2021, 7:59pm

Target watt level?
Are you gonna use a battery buffer for take advantage of temporary surplus?

danb35 · February 28, 2021, 8:03pm

Those are 250W panels, so I should peak out at 2kW.

Yes, that’s a big part of why I’m doing this–I want a big UPS for my server rack. I have 6.5 kWh of LeFePO4 batteries on their way that I’m going to connect to the inverter.

pike · February 28, 2021, 9:52pm

Keep them quite well vented. Lithium batteries can become a too much hot ladies.

danb35 · February 28, 2021, 10:08pm

LiFePO4 is reported to be much safer than most other lithium chemistries. Power density suffers, naturally, but they’re quite safe–and have a much better cycle life than lead-acid.

danb35 · March 7, 2021, 8:39pm

I posted a few weeks back that the CA seems to work just fine for TLS certs, and that continues to be the case. I’ve shelved Gluu for the time being in favor of LemonLDAP::NG, which I’ve discussed more here:

I’m a little unclear on how to use the CA to issue both TLS and SSH certs, but once I get that piece figured out, I think I’ll have what I need to put them together.

alefattorini · March 16, 2021, 4:03pm

Oh man sounds great!

ahahaha sounds great!

Axel · April 5, 2021, 8:57pm

I am working on a new desk

between this walls without a frame

jookk · April 5, 2021, 8:59pm

we have something similar with bracket on the radiator

Axel · April 6, 2021, 6:32pm

Hope next weekend it will be ready in the first parts …

Axel · April 6, 2021, 6:35pm

Or you use the “free” energie to build Bitcoins… that stores some money

danb35 · April 20, 2021, 12:02am

So to wrap up the solar project a bit, the inverter:

The batteries:

And the monitoring dashboard:

Andy_Wismer · April 20, 2021, 5:08am

@danb35

Looks really good, the whole setup!

Axel · April 22, 2021, 6:41am

now it is ready bewtter usabel, some nice things will follow when my tools are fixed

pike · April 22, 2021, 9:12am

Which direction is the window facing ?

Axel · April 23, 2021, 8:15pm

yes but is only in the morning sun, and it is the north of german
Window looking east side

nio707 · June 24, 2021, 5:53am

Hi, How did you setup these inputs in Grafana ? Which Sensor device is sending the metrics ?

danb35 · June 24, 2021, 10:12am

I’m using a somewhat-customized version of Grafana called Kotori:

Pretty much it’s “throw JSON at it”. That’s done by this software, which talks with both the inverter and the BMS:

nio707 · June 25, 2021, 4:12am

Thanks, will look at this, specially Kotori for my own personal project

pike · June 26, 2021, 8:45am

I’m tired about my scapegoat.
Therefore… yum install kmod-r8168, let’s see if my DG31PR stops being lazy…

Meanwhile…

IKEv2 tunnel starts jumping (cr4p)
Zyxel Firewalls seems to have some “snafus” on HTTPS (25 firewalls needed some new rule)
qLocker got my friend (“Do you have have a backup?” “Pick one: no; absolutely no; what is a backup?”)
new customer with old pc and dubious licenses
4 hours of sleep

And worst of all

too hot to have a nice round of single malt

Happy saturday to everyone…