1. Customer Requirement Overview

The customer plans to use the power system for a small house with the following appliances:

• Air conditioner
• Fan
• Refrigerator
• Microwave oven
• TV
• Laptop
• Stove / electric cooker

This is a medium-to-high power household application. Among these appliances, the air conditioner, refrigerator, microwave oven, and stove are the key loads. The refrigerator and air conditioner may require higher starting power, while the microwave and stove require high continuous power.

Therefore, a small power station is not recommended. The solution should use a model with high continuous AC output, strong surge capability, solar charging support, and expandable battery capacity.

2. Recommended Model: EP12000iL

For this application, the recommended model is the EP12000iL Portable Power Station.

According to EP12000 Portable Power Station Specifications V1.8 and EP12000 Product Introduction V1.3, the EP12000iL supports:

Note: The above specifications are based on EP12000 Portable Power Station Specifications V1.8 and EP12000 Product Introduction V1.3. Final confirmation should be based on the latest official specification sheet, product nameplate, local voltage standard, and the actual

appliance ratings.

3. Is the Power Enough for These Appliances?

From a power-output perspective, the EP12000iL is suitable for this small-house application.

Typical appliance power ranges are as follows:

If these appliances are not all running at full power at the same time, the EP12000iL should be able to support the customer’s daily household power needs.

However, the following points should be confirmed before final configuration:

1. The rated power of the air conditioner;
2. The rated power of the stove;
3. Whether the microwave, stove, refrigerator, and air conditioner will run at the same time;
4. How many hours the customer needs backup power;
5. The local voltage standard.

For safety and stable operation, the EP12000iL is recommended instead of a smaller 3.6kW, 5kW, or 6kW model.

4. Battery Capacity and Runtime Suggestion

The EP12000iL has a built-in 7,680Wh LiFePO₄ battery.

For short backup use or trial testing, the main unit can be used first. If the customer needs longer runtime, especially for air conditioner operation at night, an extra battery is recommended.

A practical trial configuration would be:

1 × EP12000iL main unit + optional 1 × EP12000B extra battery + solar panels

This allows the customer to test the system under real household conditions before placing a larger retail order.

5. Solar Panel Recommendation

According to EP12000 Portable Power Station Specifications V1.8, the EP12000iL supports solar charging with the following input capabilities:

For this small-house application, the recommended solar panel configuration is:

The recommended option is a 5kW–7.5kW solar array, depending on the customer’s budget, roof/ground installation space, sunlight conditions, and daily power demand.

Note: Solar panel string design and cable configuration should be confirmed according to local installation requirements, solar panel voltage/current, controller input range, and safety standards.

6. Is This the Most Powerful Model?

Yes. Based on the current available product documents, the EP12000iL is the most powerful model.

Because the customer’s appliance list includes an air conditioner, refrigerator, microwave oven, and stove, the EP12000iL is the safest and most suitable choice.

Note: Model comparison is based on the selected product documents in the knowledge base. Final model availability and specifications should be confirmed with the latest official product list.

7. Trial Order Recommendation

Since the customer wants to order one unit first for testing, and then purchase more for the retail store after the boss approves the performance, the suggested approach is:

Trial Package

1. 1 × EP12000iL main unit
2. Optional: 1 × EP12000B extra battery
3. 5kW–7.5kW solar panels
4. Required charging cables and solar accessories according to local voltage and installation conditions

Trial Test Focus

During the trial, the customer can verify:

• Whether the EP12000iL can support the main appliances in the small house;
• Whether the air conditioner and refrigerator start and run normally;
• Whether the microwave oven and stove can be used with enough power margin;
• Solar charging speed and daily charging efficiency;
• Nighttime backup performance;
• Suitability for future retail display and customer demonstration.

8. Information Needed for Final Configuration

To calculate the exact runtime and recommend the final solar panel quantity, the following information should be collected from the customer:

1. Rated power of the air conditioner;
2. Rated power of the stove;
3. Rated power of the microwave oven;
4. Daily usage hours for each appliance;
5. Local voltage standard;
6. Whether the system needs to support nighttime operation;
7. Whether solar charging will be the main charging method;
8. Whether the unit will also be used for retail demonstration.