u/scienceguy0077

I built an independent survey to track real-world EV, solar, & home battery performance (Looking for feedback + setups to feature!)
▲ 1 r/SigenergyAustralia+1 crossposts

I built an independent survey to track real-world EV, solar, & home battery performance (Looking for feedback + setups to feature!)

Hey everyone,

Traditional industry reports rarely capture the nuances of real-world solar exports, EV efficiency, or home battery performance over time.

As a fellow owner managing my own system, I wanted to change that. I've put my 15 years of professional experience in data analytics and environmental science to use and built a 100% volunteer, independent community project for Australian owners.

📊 The Project Breakdown
The Goal: Build a completely transparent, crowd-sourced dataset to give all of us access to unbiased benchmarks on EV, efficiency, and real savings. All aggregated results will be shared back to the community for free.

Get Featured: I’m writing data-driven feature stories to highlight unique individual setups. If you want yours featured, it takes about 5–8 minutes to submit. I'll be picking a few over the next couple of days! If you write a bit of free text would be a nice and informative.
If you want to include your business hyperlinks with your name and profession feel free to add those text. I am also happy to add them.

I want to turn it to community project so end users can be featured and can keep the link to share with friends if they ask something.

I also understand it’s not for everyone for privacy. You can share your info for aggregated research like annual community result feedback and comments etc.

See an Example: You can view a sample feature article directly to see how the data gets transformed into an engaging story.

🔗 Explore & Share Feedback
I want this to be as useful as possible for our community. Please take a look and let me know what you think: Are there specific metrics you feel are missing? What insights are you most curious to see?

Looking forward to your feedback.

Dirrect survey link
https://techwheel.co/ev-solar-battery-survey

techwheel.co
u/scienceguy0077 — 3 days ago

What do you suggest you f&f when they ask about home batteries? They listen and go for cheaper options.

I came across this situation. I explain a bit between some cheaper and a bit expensive like Sig systems like pros and cons. I think at the end they are influenced by the installer and go for cheaper options. I guess it makes sense as ROI is better for cheaper options.
Does anyone came across similar situation? If yes, how would you respond?

reddit.com
u/scienceguy0077 — 8 days ago

Don't stress about setting your Sigenergy battery to 100% discharge – you're covered for the full 10 years.

I’ve seen a people worrying about running out of their battery 10-year warranty early if they set their Depth of Discharge (DoD) to 100% every single day. The concern usually comes from multiplying 7.8 kWh by 365 days over 10 years, which mathematically pushes you past the official 23.77 MWh throughput limit around year 9.

But you really don't need to baby your battery or artificially limit it to 80% or 90%. Here is why you will still easily make it to the 10-year mark with a 100% daily cycle:

  1. Natural Degradation Matters: Your battery doesn't stay at a perfect 7.8 kWh forever. Because lithium cells naturally degrade over time, you will physically pull out less energy each year (e.g., dropping to ~6.8 kWh by year 5 and ~5.5 kWh by year 10). Because the capacity shrinks, your actual accumulated throughput drops and will land safely under the 23.77 MWh ceiling by year 10.

  2. Real-World Weather: You won't get a perfect 100% charge and discharge 365 days a year. Heavy winter overcast days and vacation times mean the battery will naturally rest, saving your MWh allotment.

Set it to 100% discharge, maximize your daily power savings, and let the system do its job. The warranty was designed for exactly this.

reddit.com
u/scienceguy0077 — 9 days ago

Fixed my daily battery off-grid by increasing inverter limit to 258V

Just a quick info for anyone dealing with annoying grid dropouts due to high voltage.
My system was tripping and going off-grid multiple times a day because the local grid kept spiking to the standard 253V limit.

I contacted Endeavour Energy about the spikes, and they sent me an official document approving an inverter threshold increase to 258V. I passed it to my installer, they updated the settings remotely, and it’s been two weeks with zero issues.

If you're dealing with high voltage off grid, ask your distributor for the approved paperwork to bump your limit safely!

u/scienceguy0077 — 14 days ago

GloBird zerohero hiked supply charge 35c and reduced other benefits 😟

They got a lot of customers via this Zerohero plan and now increasing daily supply charge to a level unbelievable ! Previously it was $1.35 and now $1.70!

Also reduced solar export and 6-8pm benefit.
It appears most people will not get any credit even after exporting 10kwh during zerohero. It’s in Sydney area. Is it same for other part of Australia?

u/scienceguy0077 — 18 days ago

It’s happening a few times most days. Should I contact Endeavour Energy in Sydney for help? What causes such high voltage on grid?

u/scienceguy0077 — 2 months ago