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Portable Power Station & RV Off-Grid Energy Planner

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Portable Power Station & RV Off-Grid Energy Planner

Sections

Inputs

Adjust values to update results live

Portable Power Station & RV Off-Grid Planner

Balance camping loads against solar and alternator charging — results update live.

Hardware

Portable power station capacity

Max AC inverter output

Portable solar panels

Camping & RV appliances

Set watt draw and hours per day. Toggle surge for high-start loads.

Device 1
Name
Watts
Hours / day
High surge / peak start
Device 2
Name
Watts
Hours / day
High surge / peak start
Device 3
Name
Watts
Hours / day
High surge / peak start
Device 4
Name
Watts
Hours / day
High surge / peak start
Device 5
Name
Watts
Hours / day
High surge / peak start
Device 6
Name
Watts
Hours / day
High surge / peak start
Device 7
Name
Watts
Hours / day
High surge / peak start
Device 8
Name
Watts
Hours / day
High surge / peak start

Environment & travel habits

Expected daily peak sun hours(hrs)

Location and season dependent

Weather condition

Vehicle alternator / DC-DC charging

Off-grid autonomy

0.6days

Your off-grid autonomy comes out to about 0.6 days.

900 Wh usable · 2,455 Wh/day load

Daily energy balance

Daily load

2,455Wh

All appliances

Solar yield

850Wh

Weather-adjusted

Alternator yield

0Wh

While driving

Daily deficit

1,605Wh

Loads exceed solar + alternator

Recharge time estimators

Solar full recharge

5.9hrs

Stationary under current weather

Alternator full recharge

—

Driving with DC-DC only

Surge & peak load check

Peak appliance

1,200W

High-draw combined

2,100W

Surge-class devices

Inverter status

Alert

Exceeds continuous rating

Planner recommendations

Appliance exceeds inverter continuous rating

Electric Kettle draws more than 1,000W continuous. Use a larger inverter or run that device from another source.

Daily energy deficit

You use about 1,605 Wh more per day than solar + alternator generate. Add panels, drive more with DC-DC, or cut loads.

Low off-grid autonomy

Estimated autonomy is only ~0.6 days before critical depletion. Upsize the station or reduce daily Wh.

Note: Usable pack energy ≈ capacity × 90% DoD. Solar yield = panel W × peak sun hours × weather factor × 85% system efficiency. Autonomy uses net daily deficit when generation is short, or a weather-buffer estimate when in surplus. Planning estimates only — verify with your station specs and real campsite conditions.

Related tools

RV Solar & House Battery Calculator
Portable Power Station Recharge Times
12V Camping Fridge Runtime Calculator
12V to 120V Inverter Load Planner

How this calculator works

How to use the Portable Power Station & RV Off-Grid Energy Planner

The Formula

Daily load Wh is the sum of appliance watts × hours/day. Solar yield = panel W × peak sun hours × weather factor × 85% efficiency. Alternator Wh = DC-DC watts × driving hours. Autonomy uses usable pack Wh (≈90% of capacity) against net daily deficit, with surge checks against inverter continuous and peak ratings.

Practical Example

Q: Why does my kettle trip the inverter? A: High-draw appliances can exceed continuous AC output even when daily Wh looks fine—check the surge & peak load warning.

About Portable Power Station & RV Off-Grid Energy Planner

Off-grid power station energy balance

Frequently asked questions

Q: Why does my kettle trip the inverter? A: High-draw appliances can exceed continuous AC output even when daily Wh looks fine—check the surge & peak load warning.