How to Actually Compare Power Station Prices: Price Per Watt-Hour Explained
Price per watt-hour ($/Wh) — a model's price divided by its rated capacity — normalizes cost across power stations of completely different sizes and brands, making it possible to directly compare a small 500Wh unit against a large 3,000Wh unit on a genuinely apples-to-apples basis, rather than being misled by a smaller unit's lower total price or a larger unit's higher total price alone.
This is the same basic principle behind unit pricing at a grocery store — comparing cost per unit of what you're actually buying, not just the sticker price.
Why raw price alone is misleading
A $500 power station and a $1,500 power station aren't directly comparable on price alone if one holds three times the energy of the other — the cheaper unit could easily be the worse value once capacity is factored in, which is exactly the comparison $/Wh is designed to make clear at a glance.
How to calculate it yourself
Divide the model's current price by its rated watt-hour capacity — a $999 power station rated at 1,000Wh works out to almost exactly $1.00/Wh, while a $1,299 unit rated at 1,500Wh works out to about $0.87/Wh, meaning the second unit is the better raw storage value despite its higher total price.