Home / Portable Power Station Buying Guide

Guide — portable power

Portable power station buying guide

A portable power station is specced by two numbers, and every sizing mistake comes from confusing them. Rated power (W) is how much load the inverter can drive at once. Capacity (Wh) is how long it can drive it. This guide sizes both against the documented PENYA range — eleven models from the 600 W / 512 Wh S03 Pro to the 5,000 W / 5,040 Wh S5-E and W5 — using the figures in the product records.

Step 1: Build the load list

Write down every device the station must run, with its wattage and the hours per day it runs. Multiply watts by hours to get watt-hours per device, then add the column. Two checks follow from the totals: the sum of simultaneous watts must sit under the station's rated power with headroom, and the total watt-hours must sit under capacity once you allow for conversion losses — plan on using about 85% of nameplate capacity as your working budget, and keep surge-heavy loads (motors, compressors) in mind, as their start-up draw exceeds their running watts.

Step 2: Match your totals to the range

The documented range, model by model (working budget = ≈85% of nameplate capacity)

Model	Rated power	Capacity	Working budget	Typical programme
S03 Pro	600 W	512 Wh	≈435 Wh/day	Camping, market stalls, light backup
S012	1,200 W	992 Wh	≈843 Wh/day	Home backup for lights, routers, devices
S1	2,000 W	1,024 Wh	≈870 Wh/day	Heavy loads, short runtime (power-led pick)
S015	1,500 W	1,488 Wh	≈1,265 Wh/day	Home backup for lights and small appliances
S2	2,500 W	2,048 Wh	≈1,741 Wh/day	Heavier portable loads, events
S024	2,400 W	2,232 Wh	≈1,897 Wh/day	Heavier portable loads, mobile work
S3	3,600 W	3,072 Wh	≈2,611 Wh/day	Whole-room backup, worksites
W3	3,600 W	3,072 Wh	≈2,611 Wh/day	Whole-room backup, worksites
S5-N	4,000 W	5,040 Wh	≈4,284 Wh/day	Off-grid cabins, long outages
S5-E	5,000 W	5,040 Wh	≈4,284 Wh/day	Off-grid cabins, long outages
W5	5,000 W	5,040 Wh	≈4,284 Wh/day	Off-grid cabins, long outages

Read the table by your own totals: your simultaneous watts must sit under the model's rated power, and your daily watt-hours must sit under its working budget (or under budget plus a realistic daily solar return). One model deserves a note: the S1 pairs the range's second-highest entry-level power (2,000 W) with a mid-band capacity (1,024 Wh) — the pick when the load is heavy but the runtime is short, as the sizing guide on the blog works through.

Step 3: Plan the recharge

A station is only as off-grid as its recharge plan. The catalogue's solar option is the Solar Sun 220 panel (220 W, 20.5 V) — see the panel page for what the record states and the solar generators page for how panel and station pair in a programme. As a planning rule, divide your daily watt-hour budget by the panel's watts and your realistic peak-sun hours to see how many panels a full daily recharge needs; if the answer is impractical, the station is a backup device, not a primary supply, and should be sized as one.

What to confirm before you order

• Output ports and socket standards for your market — confirmed per model at quote stage.
• Charging inputs and whether solar charging cables are included for the model you choose.
• Battery chemistry and cycle data for the specific model, from the current production record.
• Carton configuration and gross weights for your freight calculation.

Those four items are deliberately not published on this site: the catalogue records state rated power and capacity for every model, and rather than filling gaps with typical values, this guide lists them as confirmations. Send your load list with your quote request and they will be answered for the exact models you are sizing.