EcoFlow STREAM ULTRA/AC PRO/Solar Panel 4*400 Kit — EcoFlow

A comprehensive solution from the EcoFlow brand for autonomous power supply: the kit consists of STREAM series units (STREAM Ultra and/or STREAM AC Pro) and four 400W solar panels each. Product category: Energy Independence > Kits. This kit is designed for those who want to power household appliances with solar energy and significantly reduce electricity costs, moving to a "zero bills" mode thanks to three smart operating configurations.

Three Operating Modes — Flexibility for Any Needs

• Parallel Mode — up to 2,300W solar coverage. Setup: 1 × STREAM Ultra + 1 × STREAM Ultra or STREAM AC Pro. Connect two units with a parallel cable to power high-power appliances (e.g., oven or dishwasher) without failure; output power: 1,200W (main) + 1,100W (secondary) = 2,300W total.
• Distributed Mode — up to 2,000W solar coverage. Setup: 1 × STREAM Ultra + 1 × STREAM Ultra or STREAM AC Pro; no cable needed — each device connects to separate wall outlets. Solar energy reaches 2,000W with support for a total power of up to 2,300W in peak situations. Output: 1,200W (main) + 800W (secondary) + 300W (from grid) = 2,300W total power.
• Single Unit Mode — up to 1,200W solar coverage. Setup: 1 × STREAM Ultra. A single unit powers daily essential appliances such as TVs, small stoves, fans, etc.; output: 1,200W from one unit.

Scalable Capacity and PV Input Expansion

STREAM Ultra supports flexible expansion of battery capacity and PV input: the basic solar battery can be expanded from 1.92 kWh to 11.52 kWh, and the PV input from 2 kW (4 MPPT) to 12 kW (24 MPPT) when connecting up to 6 devices. You can connect two devices to double the capacity or integrate the system with EcoFlow DELTA series batteries for even greater energy storage.

Intelligent Energy Management

The AI-based system monitors all connected units in real time, ensuring stable operation of appliances. If, for example, the STREAM AC Pro in your kitchen runs out of power, AI-based load balancing automatically redirects energy from other units so that the refrigerator or other critical appliances continue to run on solar power without interruption.

AI-TOU — Dynamic Tariff and Cost Optimization

The EcoFlow mobile app matches hourly electricity tariffs with your consumption patterns and weather forecasts, optimizing the battery charging and discharging process. The system automatically charges devices during low-tariff periods and switches to stored energy during peak hours, saving up to 5% annually; manual tariff settings are also available for full control.

Solar Energy Forecasting — Plan Ahead

The app analyzes hyper-local solar radiation forecasts and your usage patterns, forming a future power plan. With up to 94% forecast accuracy, you receive recommendations on which appliances are best to use and when, to maximize solar yield and reduce grid dependence.

Kit advantages: autonomous operation of household appliances, capacity scalability up to 11.52 kWh, PV expansion from 2 kW to 12 kW, parallel and distributed connection up to 2,300W, integration with DELTA, intelligent load balancing, and savings thanks to AI-TOU.

*The manufacturer reserves the right to change the composition, configuration, color scheme of the product, warranty period, technical specifications, and other parameters without prior notice. Product description, technical specifications, and configuration may differ.

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