Key Takeaways
- EcoFlow was founded in 2017 in Shenzhen, China, by four co-founders and remains privately held; December 2025 reports say the company is weighing a US initial public offering.
- EcoFlow's STREAM product line covers microinverters and battery storage for balcony solar, sold as packaged kits alongside solar panels.
- The STREAM Ultra battery (1.92 kWh, expandable to 11.52 kWh, $1,279) is currently sold and installable only in Utah in the US.
- EcoFlow states VDE-AR-N 4105 grid-connection and TÜV Rheinland certification for its EU-market products — these are EcoFlow's own claims, not independently re-verified against the certifying bodies in this research.
- No EcoFlow balcony solar product has completed UL 3700 certification, the US-specific balcony solar standard that launched in January 2026; certification testing is still pending industry-wide for every brand, including EcoFlow.
- Like Anker SOLIX, EcoFlow both designs its own microinverter and battery hardware and sells finished kits directly to consumers, rather than operating in a single supply-chain layer.
EcoFlow: Company Snapshot
EcoFlow was founded in 2017 in Shenzhen, China, by four co-founders. The company is privately held, which distinguishes it from Anker Innovations — publicly listed on the Shenzhen Stock Exchange since 2020 — though December 2025 reports say EcoFlow is weighing a US initial public offering. EcoFlow's STREAM brand covers microinverters and battery storage used in balcony solar kits, alongside the company's wider portable power station and home battery product lines.
📍 In One Sentence
EcoFlow is the solar and battery-storage brand of a privately held company founded in Shenzhen in 2017, reportedly weighing a US IPO as of December 2025.
💬 In Plain Terms
EcoFlow isn't owned by a bigger conglomerate — it's a privately held Chinese company that makes its own portable power stations and balcony solar battery hardware.
EcoFlow Timeline
EcoFlow's founding year and STREAM product-line naming are verified, though exact launch dates for individual STREAM and PowerStream models were not confirmed against a primary source in this research. The STREAM Ultra battery is EcoFlow's most-cited balcony solar storage model, sold at $1,279 for 1.92 kWh of capacity, expandable to 11.52 kWh. In the US, EcoFlow's balcony solar hardware is tied to Utah's plug-in solar legislation, where it is confirmed sold and installable; other states with enacted plug-in-solar laws cite EcoFlow by name without confirming that EcoFlow products are yet sold there.
STREAM Lineup (AC Output)
The STREAM lineup is EcoFlow's microinverter and battery-storage product family for balcony solar, with maximum AC output listed officially per model and battery capacity scaling separately by configuration. The STREAM Ultra battery is the most-documented model: 1.92 kWh of capacity, expandable to 11.52 kWh, priced at $1,279. EcoFlow's STREAM Ultra requires its cloud app for control, and no verified local-API path was found for the product — a contrast with APsystems' EZ1 microinverter line, which ships with a native local API.
US Legalization, State by State
EcoFlow's balcony solar hardware is confirmed sold and installable in Utah, one of the US states with enacted plug-in-solar legislation as of July 2026. Other US states that have passed plug-in-solar legislation cite EcoFlow by name in press and legislative coverage, but that citation alone does not confirm current retail availability in those states. In EU markets, EcoFlow states VDE-AR-N 4105 grid-connection certification, the same standard confirmed for Anker SOLIX in Germany — though this is EcoFlow's own stated claim and has not been independently re-verified against the certifying body in this research.
Where EcoFlow Sits
The balcony solar supply chain splits into three layers: panel manufacturers, microinverter/battery makers, and kit resellers that package the two into a consumer product. EcoFlow is one of the few brands that spans two of these layers at once — it designs and manufactures its own microinverter and battery hardware rather than sourcing from a separate supplier, while also selling finished kits directly to consumers. Anker SOLIX is the other clearest example of this same dual-layer structure; both companies compete directly in the battery-inclusive segment of the market.
Certification Claims
EcoFlow states VDE-AR-N 4105 grid-connection certification and TÜV Rheinland certification for its EU-market balcony solar products. Both are EcoFlow's own stated claims in this research pass and have not been independently re-verified against the certifying bodies. In the US, no EcoFlow balcony solar product has completed UL 3700 certification — the balcony-solar-specific standard that launched in January 2026 — and certification testing under that standard remains pending industry-wide, not just for EcoFlow.
Frequently Asked Questions
Who owns EcoFlow?
EcoFlow is a privately held company founded in 2017 in Shenzhen, China, by four co-founders. It is not owned by another corporation, and no parent company has been identified in this research.
Is EcoFlow a publicly traded company?
No. Unlike Anker Innovations, which has been publicly listed on the Shenzhen Stock Exchange since 2020, EcoFlow remains privately held. December 2025 reports say EcoFlow is weighing a US initial public offering, but no listing date has been confirmed.
Where are EcoFlow products made?
EcoFlow is headquartered and manufactures through operations based in Shenzhen, China — the same manufacturing base cited for Anker and Zendure, the two other balcony solar brands most frequently compared to EcoFlow.
What is the STREAM lineup?
STREAM is EcoFlow's microinverter and battery-storage product family for balcony solar. The STREAM Ultra battery, the most-documented model, provides 1.92 kWh of capacity, expandable to 11.52 kWh, and is priced at $1,279.
Which US states can buy EcoFlow balcony solar products?
EcoFlow's STREAM Ultra battery is confirmed sold and installable in Utah as of July 2026. Other states with enacted plug-in-solar legislation cite EcoFlow by name in legislative or press coverage, but that citation alone does not confirm current retail availability there.
Does EcoFlow's balcony solar hardware have UL 3700 certification?
No. UL 3700, the US-specific balcony solar safety standard, launched in January 2026, and no brand — including EcoFlow, Anker, Hoymiles, Deye, or APsystems — has completed certification under it yet; testing remains pending industry-wide.
Is EcoFlow's EU certification independently verified?
Not in this research. EcoFlow states VDE-AR-N 4105 grid-connection certification and TÜV Rheinland certification for its EU-market products, but these are EcoFlow's own stated claims and have not been independently re-verified against the certifying bodies.
How does EcoFlow's supply-chain position compare to Anker SOLIX?
Both companies span two supply-chain layers rather than one: each designs and manufactures its own battery and microinverter hardware and also sells finished kits directly to consumers, unlike single-layer panel makers or kit resellers.
Does EcoFlow's STREAM Ultra battery support local control without the cloud?
No verified local-API path was found for the STREAM Ultra — it requires EcoFlow's cloud app for control. This contrasts with APsystems' EZ1 microinverter, which ships with a native local API, and Zendure's SolarFlow line, which supports local REST API integrations without a cloud account.