Chanming New Energy Pakistan shop energy storage solution: 10 kWh wall mounted battery and 10 kW reverse control integrated machine configuration detailed explanation
The power crisis in Pakistan is reshaping the business landscape of this South Asian country. In major cities such as Karachi, Lahore, and Islamabad, scheduled load shedding for 6-12 hours per day has become the norm. For shops that rely on stable electricity operation - whether it's convenience stores, clinics, small factories, or IT service centers - power outages mean direct economic losses: refrigerated goods deteriorate, POS system interruptions, production equipment shutdowns, and customer loss.
This article is aimed at B2B buyers (importers, installers, EPC contractors) targeting the Pakistani market, providing a set of shop energy storage solutions that have been verified through practical deployment: 10 kWh wall mounted household energy storage batteries+10 kW reverse control integrated machines+5.8 kW photovoltaic arrays. The plan covers load analysis, capacity selection, daily power generation calculation, investment payback period, and bulk procurement recommendations.
Current situation and pain points of electricity consumption in Pakistani shops
Power grid condition
The power supply capacity of the National Grid of Pakistan (NTDC/WAPDA) has long been below demand. According to the Pakistan Economic Survey 2025, the national electricity gap can reach 5000-7000 MW during peak hours. The load shedding schedule for major cities is as follows:
| City | Daily power outage duration | Peak power outage period | Power grid voltage stability |
|---|---|---|---|
| Karachi | 8-12 hours | 14:00-18:00, 20:00-00:00 | Poor, frequent voltage drop |
| Lahore (L Ah ore) | 6-10 hours | 12:00-16:00, 19:00-23:00 | Medium |
| Islamabad | 4-8 hours | 14:00-18:00 | Relatively good | Faisalabad | 10-14 hours | Whole day segmentation | Poor |
Data source: NEPRA 2025 report and feedback from local distributors in Chanming.
Typical load list of shops
Taking a medium-sized convenience store (Gro CE ry Store) as an example, the typical electrical equipment and power consumption are as follows:
| Equipment | Quantity | Single power (W) | Daily operating time (h) | Daily power consumption (kWh) | |
|---|---|---|---|---|---|
| Refrigerated display cabinet | 2 | 350 | 24 | 16.8 | |
| LED lighting | 8 | 15 | 12 | 1.44 | |
| Ceiling fan | 4 | 75 | 8 | 2.4 | |
| POS cash register | 2 | 150 | 12 | 3.6 | |
| Monitoring camera system | 1 | 100 | 24 | 2.4 | |
| Water dispenser/heater | 1 | 1500 | 4 | 6.0 | |
| Mobile phone charging/backup | - | 200 | 8 | 1.6 | |
| Total | — | ~3,050W | — | ~34.2 kWh/ Tian |
Note: The above load values are typical and need to be adjusted according to the specific type of shop. The load characteristics of clinics, small factories, and IT service centers vary greatly, as detailed in the FAQ at the end of the article.
Core configuration of the solution: 10 kWh wall mounted batteries+10 kW reverse control integrated machine
Overview of Configuration
| Components | Model/Specification | Quantity | Unit Price Estimation (USD, FOB) | Subtotal (USD) |
|---|---|---|---|---|
| Wall mounted Energy Storage Battery | 10kWh, 51.2V, LiFePO4 | 1 | ~2,000 | ~2,000 |
| Reverse control integrated machine | 10kW, 48V, MPPT 150A | 1 | ~1,800 | ~1,800 |
| Photovoltaic module | 580W N - TOPCon | 10 | ~180/block | ~1800 |
| Photovoltaic bracket+cable+distribution box | Standard matching | 1 set | ~600 | >~600 |
| System total | — | — | — | ~6,200 |
10 kWh Wall mounted energy storage battery technical parameters
| Parameters | Specifications |
|---|---|
| Rated Capacity | 10 kWh |
| Rated Voltage | 51.2V |
| Cell Type | LiFePO4 (Lithium Iron Phosphate)|
| Cycle Life | 8000+times (25 ° C, 0.5C) 90% DoD |
| Depth of discharge (DoD) | 90% |
| Available capacity | 9 kWh (10 kWh x 90% DoD) | Maximum charge and discharge current | 100A (about 5.1 kW) | Protection level | IP65 (applicable for outdoor installation) |
| -10 ° C~+55 ° C | |
| Communication interface | CAN/RS485 |
| Warranty | 5 years |
| Certification | CE, IEC 62109, UN38.3 available upon request |
The above picture shows the deployment of typical rooftop photovoltaics and wall mounted energy storage in Karachi, Pakistan. 10 × 580W photovoltaic panels provide daytime power generation, while 10 kWh batteries store surplus electricity for use at night and during power outages.
10 kW Reverse Control Integrated Machine Technical Parameters
| Parameters | Specifications |
|---|---|
| Rated power | 10 kW |
| Photovoltaic input (MPPT) | 150A, maximum 500V DC |
| Battery voltage | 48V DC | AC output | <230V AC, single-phase/Three phase optional
| Maximum efficiency | 97.5% |
| Switching time | <20ms (grid) ↔ Seamless battery switching |
| Working mode | Hybrid network (Grid tie+Off-Grid+backup power) |
| Protection level | IP65 |
| Warranty | 3 years |
| Certification | CE (IEC 62109) |
The core advantage of the reverse control all-in-one machine lies in its "all-in-one machine" design: the inverter, G6 controller, battery charger, and parallel off grid switch are integrated into one chassis, greatly reducing the complexity of on-site wiring. For Pakistani installers, this means shorter on-site construction time and lower installation error rates.
Image above: Standard installation layout of 10 kW reverse control integrated machine and 10 kWh wall mounted battery. The reverse control integrated machine is wall mounted, and the battery is installed on the side or below the reverse controller, occupying approximately 1.2m x 1.5m of wall space as a wholeCalculation of daily power generation and self-sufficiency rate
Photovoltaic power generation
The average annual sunshine hours in Pakistan are about 7-8 hours/day, and the solar radiation is about 5.0-6.5 kWh/m ²/day (Karachi about 5.5, Lahore about 5.8, Islamabad about 5.2). Calculated based on a 5.8 kW photovoltaic system (10 × 580W):
City Daily average radiation (kWh/m ²) Daily power generation estimation (kWh) Annual power generation estimation (kWh) Karachi 5.5 25-32 9100-11700 Lahore 5.8 27-34 9800-12400 Islamabad 5.2 24-30 8700-11000 Calculation assumption: System efficiency of 80% (considering inverter losses, line losses, temperature coefficient, dust cover, etc.).Analysis of self-sufficiency rate of electricity consumption in shops
Taking a convenience store in Lahore with a daily electricity consumption of 34.2 kWh as an example:
- Daytime electricity consumption (06:00-18:00): about 18 kWh (lighting, fans,...) POS、 Partial refrigeration)
- Nighttime electricity consumption (18:00-06:00): about 16.2 kWh (24-hour refrigeration operation, monitoring, and partial lighting)
- Photovoltaic daytime power generation: about 30 kWh (Lahore daily average)
- Direct supply to daytime loads: 18 kWh
- Surcharge into battery: about 10-12 kWh (limited by battery charging power of 5.1 kW, 90% of 10 kWh battery can be fully charged in 3-4 hours)
- Battery night discharge: 9 kWh Available capacity (90% DoD)
- Coverage of night load: 9/16.2 ≈ 55%
- Remaining night load needs to be supplemented or reduced by the power grid (such as shutting down non essential equipment)
Conclusion: This scheme can achieve 100% photovoltaic self-sufficiency during the day and 55% battery coverage at night, with a comprehensive self-sufficiency rate of about 75-80%. During power outages, the battery can independently support the core load of the shop (refrigeration+POS+monitoring+partial lighting) for about 4-5 hours.
Cost comparison with diesel generators
The main backup power solution for Pakistani shops currently is diesel generators. The following is a 5-year total cost comparison between the 10 kWh energy storage solution and diesel generators:
Cost Item 10 kWh Photovoltaic+Energy Storage Solution Diesel Generator (15kVA) Initial Investment (USD) ~6200 ~3500 Annual Fuel Cost (USD) 0 ~2800 (based on PKR 250/L, 8 hours per day) TD>Annual maintenance cost (USD) ~100 ~400 5-year total cost (USD) ~6700 ~18500 Noise/emissions None High noise+exhaust Requires manual duty No Yes (refueling, maintenance)/tbody>Data source: Pakistan diesel price PKR 250-280/L (August 2026), Chanming internal calculation.
Investment payback period: Calculated based on annual fuel savings and maintenance costs of approximately USD 3100, the payback period is approximately2.0-2.5 years.. Considering the fluctuation of diesel prices and the cost of generator replacement (usually requiring major repairs or replacements within 5 years), the actual payback period may be shorter.
Key points of installation and operation and maintenance
Installation environment requirements
- Roof load-bearing capacity: The total weight of photovoltaic brackets and modules is about 200-250kg, and the load-bearing capacity of the roof structure needs to be confirmed (generally concrete roofs can meet this).
- Battery installation location: Wall mounted batteries are recommended to be installed indoors or under sunshades to avoid direct sunlight.
. If outdoor installation is necessary, ensure IP65 protection and a sunshade above.- Heat dissipation of reverse control all-in-one machine: A heat dissipation space of ≥ 20cm should be left on both sides of the chassis to avoid closed installation.
.- Grounding: All metal casings must be reliably grounded and comply with local electrical regulations.
.Daily operation and maintenance
- Monthly: Check the dust/bird droppings on the surface of the photovoltaic panel and clean it (coastal cities such as Karachi have heavy salt spray and require more frequent cleaning); Check if the cable joints are loose.
- Quarterly: Check battery SOC/SOH and cell voltage balance through the BMS APP; Check the operation status of the cooling fan of the reverse control integrated machine.
- Annual: Professional maintenance, including battery capacity testing, grounding resistance testing, and inverter efficiency testing.
.Chanming All products come standard with intelligent BMS, supporting remote monitoring and fault warning. Installers can view the real-time running status of all installed systems through a mobile app, significantly reducing the cost of after-sales inspections.
Suggestions for B2B bulk procurement
For importers and installers targeting the Pakistani market, Chanming provides the following bulk procurement support:
Purchase Quantity Discounts Additional Services 5-9 sets 5% Standard Technical Documents (English) 10-19 sets 8% +Installation Training Videos (English) 20-49 sets 12%+Exclusive technical support group+Prototype borrowing Over 50 sets negotiable +Customized BMS interface+Local spare parts warehouse support All bulk orders include: copy of certificate CE, test report IEC 62109, test report UN38.3 (if required), English installation manual, and English user manual.
Frequently Asked Questions (FAQ)
How long can a G10 battery last in high temperatures in Pakistan?
The summer temperature in Pakistan can reach 45-50 ° C. The cycle life of G2 batteries at 45 ° C is about 60-70% of that at 25 ° C, which is about 5000-6000 cycles, and they can still be used for 8-10 years. It is recommended to install the battery indoors with good ventilation or in a shaded area, avoiding direct sunlight. Chanming Battery BMS has high temperature protection function, which automatically reduces power operation when the cell temperature exceeds 55 ° C.
Is there a significant difference in workload between clinics and IT service centers and convenience stores?
The difference is significant. Clinics need to consider additional medical equipment (such as X-ray machines 2-5 kW, refrigerated vaccine cabinets 300W), and UPS level power supply stability; The IT service center needs to consider server cabinets (3-10 kW) and air conditioning (2-5 kW). It is recommended that the clinic be equipped with 10-20 kWh batteries and 10 kW reverse control integrated machines. The IT service center suggests a 20-40 kWh stacking system and 16 kW reverse control integrated machines. The specific load list can be obtained by contacting the Chanming technical team for customized solutions.
How to solve the dust problem of photovoltaic panels in Pakistan?
Some areas of Pakistan, such as Punjab province, have heavy sandstorms, and dust on the surface of photovoltaic panels can reduce power generation by 10-20%. Suggestion: ① Choose N - TOPCon components with self-cleaning coating; ② Clean at least once a month (rinse with a water pipe); ③ Install with a tilt angle of ≥ 15 ° and utilize natural rainwater flushing. The surface of the 580W component is coated with anti reflective coating, which has low dust adhesion and is easy to clean.
Will the system automatically switch back to the grid when the power is on?
Yes, it is. Chanming 10 kW The reverse control integrated machine supports automatic and off grid switching, with a switching time of<20ms and no load sensing. When the power grid is restored, the system automatically switches back to the grid for power supply, while the remaining photovoltaic power continues to be charged into the battery. Users can also set the power supply strategy of "priority photovoltaic → priority battery → grid supplement" through the APP.
Can the battery be expanded after use?
10 kWh Wall mounted batteries are designed as standalone units and do not support direct parallel expansion. If larger capacity is needed in the future, a new set of 10 kWh batteries+inverter combination can be added, or upgraded to Chanming [20-64 kWh stacked energy storage system] (/zh/products/stackable batry-20-64 kWh). The stacking system supports modular expansion, with each additional 5 kWh modules capable of expanding 5 kWh, up to a maximum of 64 kWh.
Conclusion
The power crisis in Pakistan is not a short-term issue, but a structural challenge. For shop operators, photovoltaic+energy storage has changed from an "optional upgrade" to a "survival necessity". The configuration scheme of 10 kWh wall mounted battery+10 kW reverse control integrated machine+5.8 kW photovoltaic has been verified through actual deployment in major cities such as Lahore and Karachi, achieving a self-sufficiency rate of 75-80%, an investment payback period of 2.0-2.5 years, and a system life of more than 10 years.
For B2B buyers, choosing suppliers who have already obtained CE certification and possess IEC 62109 and UN38.3 test reports is the key to ensuring smooth customs clearance of products and reducing after-sales risks. Chanming With years of deep cultivation in the South Asian market, our products have been deployed in countries such as Pakistan, India, and Bangladesh, providing one-stop services from technical support to bulk procurement.
If you need detailed product specifications, installation manuals, or bulk quotations, please contact the Chanming sales team through the website consultation form or the Wh atsApp.
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The technical parameters of this article are based on internal testing data from Chanming and actual deployment experience in the Pakistani market. The product specifications shall be based on the latest version of the datasheet.
Chanming Energy Technology Hebei 蝉鸣新能源 Technology Co., Ltd.