Quick product record
| Availability | Official U.S. listing; the page described the item as preorder inventory when checked. |
|---|---|
| Certification | Manufacturer states UL 1741 certification and built-in anti-islanding. Complete-system UL 3700 evidence was not established by that claim. |
| Included components | Base SKU is the STREAM Microinverter. Official bundles pair it with two or four 400W rigid panels; confirm mounting and cable contents for the selected bundle. |
| Battery compatibility | Compatible with the 1.92kWh EcoFlow STREAM Ultra; EcoFlow describes scalable STREAM storage from 1.92kWh to 11.52kWh. |
| Warranty | 10 years for the STREAM Microinverter and STREAM Ultra under EcoFlow’s U.S. warranty table. |
| Price checked | $299 sale price for the microinverter; $1,099 with two 400W panels; $1,899 with four. Prices and stock can change. |
| Eligible states | The current official U.S. product note explicitly limits sale and plug-and-play installation to Utah. This is a seller restriction, not a nationwide legal conclusion. |
Price, stock and state claims checked October 25, 2026
Promising U.S. component; verify the complete configuration
This is an evidence verdict, not a product rating.
What the official offer includes
EcoFlow is one of the most visible consumer-energy brands entering U.S. plug-in solar. Its official page should be treated as the source for current specifications and included components. The listing’s named-state availability has changed over time, so buyers should recheck the page and their state law immediately before ordering. We have not hands-on tested this product.
The evidence gap to resolve
UL 1741 commonly applies to inverter and interconnection equipment. Where a state requires complete-system certification, match the exact sold configuration to that requirement. Do not infer California qualification from general U.S. marketing or from the inverter certificate alone.
View the official product page ↗
Before buying
- Save the exact model number and included-component list.
- Verify certification against the complete sold configuration.
- Confirm state, utility, local electrical and property requirements.
- Calculate estimated savings and payback with realistic self-consumption and no assumed export credit.
Continue your research
Quick answers
Is EcoFlow STREAM legal everywhere?
No. Product availability and manufacturer claims do not replace state, utility, electrical and property requirements.
Did UsedItFirst test this system?
No. This is a research-only fact check based on the cited official sources.
Can the specifications change?
Yes. Confirm current price, contents, certification and availability on the official page before buying.
Sources
- EcoFlow STREAM Microinverter official listingCurrent product specifications and manufacturer claims · checked October 25, 2026.
- UL Solutions: UL 3700 certification frameworkComplete-system safety framework and program launch · checked October 25, 2026.
Editorial standard: We separate enacted law, pending proposals, manufacturer claims and independently traceable evidence. UsedItFirst is independent and not affiliated with the companies covered.