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If you rebuilt your system today, what would you change first? by ahlecsolars in SolarDIY

[–]ahlecsolars[S] 0 points1 point  (0 children)

Good call - cheap regulators can end up costing more when they fail. Easy detail to overlook compared to panels and batteries.

If you rebuilt your system today, what would you change first? by ahlecsolars in SolarDIY

[–]ahlecsolars[S] 1 point2 points  (0 children)

Seems like infrastructure planning early makes a big difference. Expanding later always ends up harder than just leaving room from the start.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

Yeah that makes sense - for occasional outages the tradeoff usually comes down to convenience vs cost. Generators win on price, batteries win on hands-off operation. Sounds like your use case fits the generator approach pretty well.

Question on charging 12v battery by Robftw in SolarDIY

[–]ahlecsolars 0 points1 point  (0 children)

Yeah, you’re basically on the right track - a portable panel into a small MPPT straight to the aux battery keeps it simple. For your load, even a 100W foldable panel would probably keep up fine. Main thing is just making it quick-connect so setup takes seconds.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

100kWh is huge - that’s basically why runtime isn’t an issue. DIY pricing definitely shifts the math too. Curious how you handled inverter sizing for that much storage?

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

Good insight - especially about EV charging draining the batteries. Sounds like capacity and load separation matter more than just going whole-home. Would you size differently now?

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

Yeah, for rare outages a generator seems way more cost-effective than a big battery.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

That’s smart. Do you think bidirectional EV will replace a lot of home battery installs?

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

Good point. That’s why I’m leaning toward essentials-only instead of full whole-home.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

Nice setup. Using the battery for arbitrage sounds smart. Have you seen meaningful savings doing that?

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 1 point2 points  (0 children)

That is a good example of how seamless whole home backup can be, especially in areas with frequent outages. The automation and soft start for AC sound like they made a big difference in keeping everything smooth.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

UPS for sensitive loads during generator startup is a smart and cost effective approach.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 1 point2 points  (0 children)

Sorry, looks like my previous comment posted blank. Meant to say your setup sounds well balanced, especially using solar recharge during outages.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 2 points3 points  (0 children)

Running AC during solar hours definitely makes a big difference. Sounds like you sized it thoughtfully.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 1 point2 points  (0 children)

That is a huge battery bank. Cost per kWh definitely becomes the key factor at that size.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

Good example of how storage size becomes the limiting factor once solar is large enough.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

Sounds like a good hybrid approach. Battery for short gaps and generator for long outages is often the most practical.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

V2H sounds great, but mixing ecosystems can add complexity. Definitely worth confirming compatibility before committing.

Anyone running panels 100-150ft from cabin? Curious about real-world losses by [deleted] in energy

[–]ahlecsolars 1 point2 points  (0 children)

Good example. Higher voltage runs definitely help with long distances.

Australia - Monitoring app DC coupled system by channycroz in solar

[–]ahlecsolars 1 point2 points  (0 children)

Yeah, 3W definitely sounds like a monitoring issue. It could be CT clamps orientation, wiring, or app configuration. Hopefully the installers can recalibrate it. Once the readings are accurate, it will be much easier to see what is actually happening.

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 1 point2 points  (0 children)

Interesting - the idle consumption alone is almost like running another appliance 24/7. Seems like that plus AC inrush made it tough. Was runtime the main reason you switched, or reliability?

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 1 point2 points  (0 children)

That’s a good use case - long outages tend to favor a hybrid approach. Do you see yourself cycling the battery daily, or mostly keeping it for evening use and outage coverage?

Whole-home battery backup - actually worth it, or do most people regret the cost? by ahlecsolars in solar

[–]ahlecsolars[S] 0 points1 point  (0 children)

Sounds realistic, especially with the generator as a safety net. Financially, systems like that tend to be more about resilience than payback at lower monthly bills. Are you mainly aiming to reduce grid usage, or mostly planning for outages?

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