Question 1

Can I run my AC on solar?

Accepted Answer

Running an AC on solar is possible, but it is often considered the 'Holy Grail' of RV solar. It requires a Soft Start device to handle the initial power surge and a massive battery bank (usually Lithium) and solar array. It's a significant investment compared to standard power needs.

Question 2

Should I wire my panels in Series or Parallel?

Accepted Answer

Series: Higher voltage, thinner wires, better for long runs. Weakness: If one panel is shaded, the output of the entire string drops. Parallel: Higher amperage, thicker wires. Strength: If one panel is shaded, the unshaded panels continue to operate at full power.

Question 3

Battery Depth of Discharge (LiFePO4 vs AGM)?

Accepted Answer

Depth of Discharge (DoD) is the safe usage limit of your battery. Traditional Lead-Acid and AGM batteries should never be discharged below 50% capacity, or they will suffer permanent damage. Lithium (LiFePO4) batteries can safely be discharged up to 80-100%, giving you nearly double the usable power for the same physical footprint.

Question 4

Why does the calculator use a 33% Safety Buffer?

Accepted Answer

In the real world, solar panels rarely hit their 100% rated efficiency. Factors like dust, clouds, suboptimal sun angles, and heat reduce output. By applying a 33% Safety Buffer, we ensure you have enough solar to charge your batteries even on less-than-perfect days.

Question 5

Fridge Math: 12V vs 110V Residential?

Accepted Answer

If you are using a residential fridge through an inverter, you are paying an 'Inverter Tax' (10-15% loss) plus the inverter's own idle draw. A 12V DC compressor fridge is 3x more efficient for solar builds because it skips the conversion step entirely.