Looking for Feedback on a DIY Solar System Planning App – Would You Use It?

Hey everyone! I'm diving into development for a solar system design app targeted at DIY enthusiasts, vanlifers, and anyone looking to go off-grid. This app will be available on desktop and mobile, featuring a 3D visual layout of key components like batteries, inverters, and charge controllers (though I'm not including wiring simulations yet). Here's what I'm aiming to include:

1. **Wire size calculator** for voltage, current, cable length, and voltage drop.
2. Automatic sizing for fuses and breakers.
3. Battery bank configurations for series and parallel setups, with details on total voltage, max continuous draw, and peak capacity.
4. Idle consumption simulation for inverters and DC/DC devices.
5. Appliance/device input to track daily and peak consumption.
6. Solar array sizing based on load and sun exposure.
7. MPPT recommendations for optimal configurations.
8. A surface area optimizer for solar panel setups.
9. Separate tracking for AC and DC loads.

Additional features might include a budget estimator, smart warnings, and a PDF export function.

I really want this app to be user-friendly and assist with real-world solar planning, especially related to LiFePO4 batteries and optimizing space. But I'm curious about whether there's enough interest out there. Would you find this app useful? What features would you want to see? Are there any specific challenges in your solar planning that this could address? Any feedback would be much appreciated!