Solar Appliances
Solar AC, geyser, lights, pumps and fans: how to power each one.
Solar appliances · Portable solar
Portable Solar Power in Karachi
A portable power station and a folding panel can keep a phone, a laptop, a fan and a router running through a power cut. Here is how to size one.
- ✓ Power stations and folding panels
- ✓ Run time sums
- ✓ What to check
What portable solar is
A portable solar kit has two parts. A power station is a battery with an inverter and sockets built in. A folding panel charges it from the sun. You can also charge the station from the grid when power is available.
It suits small loads: phones, laptops, a router, lights, a small fan. It does not suit an air conditioner or a heavy pump. For those you need a fixed system.
Portable kits we quote
Prices are per item. Panel and station are priced separately.
| Item | Detail | Price (PKR) |
|---|---|---|
| Small power station | Around 300 to 500 Wh | Contact us for latest prices |
| Large power station | Around 1,000 Wh and above | Contact us for latest prices |
| Folding solar panel | Around 100 to 200 W | Contact us for latest prices |
Prices change with the exchange rate and stock. Contact us for the latest prices.
How long will it run
A worked example. Check your own device labels.
- 1
Find the battery size in watt-hours
A station labelled 500 Wh holds 500 watt-hours.
- 2
Allow for losses
The inverter wastes some energy. Plan on using about 85 percent. That is about 425 Wh.
- 3
Add up the load
A router at 12 W, a fan at 35 W and two LED bulbs at 10 W each add up to about 67 W.
- 4
Divide
425 Wh divided by 67 W is about 6.3 hours.
Typical loads
Approximate running power. Read the label on your own appliance.
| Device | Typical power | Notes |
|---|---|---|
| Phone charger | 5 to 20 W | Low load |
| Wi-Fi router | 10 to 15 W | Runs all day |
| LED bulb | 5 to 12 W | Efficient |
| DC or inverter fan | 30 to 50 W | Far lower than a basic AC fan |
| Laptop | 40 to 90 W | Depends on use |
| LED TV | 50 to 120 W | Depends on size |
| Fridge | 100 to 200 W while running | Starts with a surge, so check the station's peak rating |
Recharging with the panel
A 200 W folding panel in good sun gives roughly 0.8 to 1.0 kWh over a day, at the planning range of 4 to 5 hours of full output. So a 500 Wh station recharges in about one sunny day from empty.
Haze, clouds and a poor angle all cut that. Keep the panel in direct sun and tilt it toward the sun, not flat on the ground.
What to check before you buy
Ask for the watt-hour capacity, the continuous output in watts, the peak output, the battery chemistry and the number of charge cycles. Check that the panel's voltage and connector match the station. Ask who handles the warranty. Cheap stations often overstate capacity, so read the label against the datasheet.
Safe use in Karachi heat
Batteries dislike heat. Do not leave a power station in a hot car or in direct sun. Keep it in shade with air around it. Do not cover the vents while it charges or runs.
If the case swells, smells or gets very hot, stop using it and keep it away from other things until it can be checked.
FAQs
Questions people ask us
Short answers. For your own property, send us your electricity bill and roof details.
Ask on WhatsAppDivide the usable watt-hours, about 85 percent of the label, by the fan's watts. A 500 Wh station and a 35 W fan run about 12 hours.
Not usually. An AC needs far more power than most portable stations give. A fixed system is the answer.
A 200 W panel in good sun can recharge about 0.8 to 1.0 kWh in a day. Haze and clouds lengthen it.
It depends. A portable station is easy to move and can use solar directly. A UPS is fixed and often cheaper for the same capacity.
It depends on the capacity and the panel. Send what you want to run and we will quote.
Related pages
Solar UPS
Solar UPS: how it differs from a hybrid system, sizing and battery choices.
Solar Lights
Solar garden, gate and flood lights: lumens, battery, IP rating and placement.
Solar Fans & Coolers
Solar fans and coolers: DC and inverter fans, and how humidity limits coolers.
Not sure which size you need?
Tell us what you want to run and for how long. We will suggest a size and give you a free estimate.