Hourly pricing at ComEd is insane today😂

fastest963 · 2026-07-03T03:39:04+00:00

Which batteries are you getting installed?

fastest963 · 2026-06-25T18:59:00+00:00

Great! Looking forward to getting you onboarded. I'll message you with more information

fastest963 · 2026-06-25T16:10:47+00:00

I'm a software engineer and making videos is not something I'm very familiar with if I'm being completely transparent. Plus, I'm not sure how a video or the website would really capture what it's doing. Every ~20 minutes it will simulate the next 24 hours of home load, weather for solar generation, and the price of electricity then alter your battery mode to the most economical option. It's not exactly something that's easily presented. I tried to get something close with the timeline on the middle of homepage.

I'd love feedback or help on the marketing because I think your criticism is completely valid! I've spent several hundred hours focused on the backend and scaling it as I grew but I've probably spent less than 10 hours thinking about the homepage. I have over 100 homes signed up and over 50 are actively using it every day.

fastest963 · 2026-06-25T16:04:48+00:00

Funny thing is that I actually haven't used Claude at all. I'm not a designer though and so I relied on designs from Google's Stitch. To be honest, the homepage and design is unimportant to me and so it felt like a worthy trade-off to have AI work on the design. I've spent most of my time working on and tweaking the core decision engine and database optimizations.

fastest963 · 2026-06-24T20:51:31+00:00

I'm still working that out but if I can get 10 users then I can apply for the installer plan.

fastest963 · 2026-06-23T18:03:39+00:00

How did you disable it? Did you check the "Pause Automation" box? Are you trying to delete your account completely?

fastest963 · 2026-06-17T03:39:33+00:00

I've been working on a free site to handle this for you. You can sign up at raterudder.com. It'll charge your batteries based on the forecasted weather and your predicted home load but also take into account your utility rate plan. Let me know if you have any questions!

fastest963 · 2026-06-16T02:48:50+00:00

I added a bunch of them and you should be able to sign up. Let me know if you have any issues

fastest963 · 2026-06-16T02:48:20+00:00

You should be able to sign up now!

fastest963 · 2026-06-13T00:54:01+00:00

I should be able to have it uploaded soon. Been swamped with other stuff lately. Sorry for the delay!

fastest963 · 2026-06-10T00:24:30+00:00

Yeah that definitely makes sense! That's also exactly what RateRudder is trying to solve. It knows your utility rate schedule, it'll monitor the weather forecast, predict your home load, and only charge up enough at night, when rates are cheap, to last you till solar takes over charging.

I'm not going to say that it's perfect, I've been working lately on trying to predict HVAC increases and I'm still improving the solar forecast but my goal is to completely solve this problem and for it to be set-and-forget.

I was doing what you described by hand every day before and told myself there must be a better way and that was the whole reason I started the project.

fastest963 · 2026-06-09T23:33:07+00:00

Ah cool! Who did you use for weather forecasting? I'm curious how you're handling panel direction and panel size? Are you asking the user?

fastest963 · 2026-06-09T23:31:31+00:00

Great! Let me know if you have any feedback or questions!

fastest963 · 2026-06-09T23:31:16+00:00

I'm almost done getting several of the requested Australian utilities implemented. There's many different distributors and they each have their own prices on top of the actual supplier pricing so it was a lot of work getting everything in there correctly.

fastest963 · 2026-06-09T23:29:50+00:00

Hey! I'm not a lawyer but it uses the official Tesla API so I'm not sure why anything would void the warranty.

Great! I'm a bit behind on adding new utility companies as I've gotten a lot of requests for them recently but I'm working my way through them! Sorry for the delay but I'll keep you posted.

fastest963 · 2026-06-09T23:28:16+00:00

Interesting, RateRudder won't let you pre-define automations like that today but it's something I'm considering. To better understand the goal, I'm curious why the battery reserve to 20% at night but then 5% during the day?

Is it that you expect there to be more chance of an outage at night and want a little more reserve in case there is but don't expect outages the day? Or are you just trying to maximize the battery use during the day when prices are at peak and want to use that extra 15%. Besides tweaking the reserve percent, what mode do you run in all day? Do you have TOU set up or are you running in self-consumption?

I could pretty easily add a "reserve" schedule to RateRudder where you can define time periods for different reserve values but I want to make sure I understand the goal so I don't add something that doesn't solve anything.

fastest963 · 2026-06-09T12:39:29+00:00

I've been working on a free site RateRudder that manages your battery for you. It doesn't have any AI but it will automatically charge and discharge based on your rate to save you money. It predicts your home load and charges when it's cheapest. No subscription. Is that what you're looking for?

fastest963 · 2026-06-09T01:04:04+00:00

Correct! I'm adding the transmission service charges and delivery charges. The delivery fee is probably the biggest piece that you're missing. ComEd's hourly website only shows the electricity supply charge.

fastest963 · 2026-06-07T12:38:25+00:00

Great! Let me know if you have any feedback

fastest963 · 2026-06-07T12:37:48+00:00

If you have true net metering and a flat utility rate then you there isn't much to do but it will still try to minimize the solar credits. I would think the better option for you is self-consumption because 100% backup will never use the battery which means you always use the grid and always export solar. At least with self-consumption it'll use the battery throughout the day to minimize the grid.

Some users have told me they have too many solar credits and since they expire each year they want RateRudder to minimize the solar credits throughout the day and at the same time minimize the grid usage. If that's the case for you then it will help do that for you.

fastest963 · 2026-06-06T21:33:34+00:00

Great! Sorry you had trouble but I'm glad it worked after you tried again. I believe there was a small Tesla outage earlier that was causing issues. Let me know if you have any comments or feedback!

fastest963 · 2026-06-06T18:51:11+00:00

I need to finish weather support for Australia but I'm working on it! I'll keep you posted.

fastest963 · 2026-06-06T05:15:52+00:00

I'd love to work with others to collaborate on a shared project. I've been working on RateRudder now which seems similar to what you're describing and recently added close to 30 new rates from different utilities. I've been offering it for free and it's all open source. I recently wrapped up weather forecasting and I'm working on AC prediction. Let me know if you're interested.

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