Question 1

How does this calculator determine how many solar panels I need?

Accepted Answer

Your required solar panel wattage is calculated by taking your total daily watt-hour load, dividing it by your location's average peak sun hours, and applying a 15–20% inefficiency multiplier.

Question 2

What is Depth of Discharge (DoD) and why does it matter?

Accepted Answer

Depth of Discharge (DoD) refers to how much battery capacity can be safely used before recharging. Modern LiFePO4 power stations (EcoFlow, Jackery, Bluetti) support up to 80–90% DoD without degrading battery life.

Question 3

Why does location significantly impact solar system size?

Accepted Answer

Solar panels rely on peak sun hours—not total daylight hours. A load in sunny regions like Arizona requires fewer panels than the exact same load in Ontario during winter due to seasonal irradiance drops.

Question 4

Portable Power Station vs. Custom DIY Solar Setup: Which is best?

Accepted Answer

Portable Power Stations (EcoFlow, Jackery, Bluetti) are ideal for plug-and-play simplicity and mobile backup. Custom DIY systems (Renogy) are best for permanent cabin setups or custom van builds.

Question 5

How many days of battery autonomy should I plan for?

Accepted Answer

For temporary emergency home backup or weekend trips, 1–2 days is usually sufficient. For off-grid cabins or full-time van life, 3–4 days of autonomy is recommended.

Moab, Utah

Moab, Utah