The US market is small and moving fast. Prices below were checked in October 2026, and stock is limited. We list what each maker claims. We do not call any kit UL 3700 certified, because we have not seen a listing.
What is the EcoFlow STREAM?
The STREAM microinverter is $369 on its own, or $799 in a bundle with 400 W panels (checked October 2026). It is 1,200 W, 120 V, with no battery. The page shows it as pre-order and sold out. It lists UL 1741 and anti-islanding, not UL 3700, which is in progress. The page is also unclear on which states it ships to, naming Utah, then Maryland, Connecticut and Colorado. Check before you order.
What is the EcoFlow STREAM Ultra?
It is a battery system. The Ultra is $1,399, or $1,599 with the microinverter, though the page also shows a conflicting $1,279 member price. It was out of stock with a restock date of March 2027. The battery is 1.92 kWh, expandable to 11.52 kWh. Output is 800 W alone or 1,200 W with the microinverter. A battery adds cost, and we have not run payback for batteries.
What is the CraftStrom 800 W kit?
CraftStrom sells a complete kit for $2,031 from Houston, Texas. It has four 200 W panels, two 400 W inverters and a smart meter. A 1 kWh or 2 kWh battery is sold separately. The maker says it is UL 3700 compliant. A tracker lists its certification as in progress. The price is high, so see what payback looks like.
What is the APsystems EZ1?
The EZ1 is a microinverter, not a full kit. It is $325 from the APsystems US shop, with 900 VA maximum output. The maker says it is CSA certified to UL 3700. You must add panels. We did not find a sourced panel price, so we cannot give a full kit cost.
What are Bright Saver kits?
Bright Saver is a non-profit. Its kits use a Hoymiles microinverter. Members ($29 a year) paid $285.30 for 180 W and $414.17 for 360 W. Non-members paid $499 and $699. Those prices are from July 2026, so check the site. It ships nationwide except Maine, New York and Vermont. The UL 3700 claim covers the microinverter only.
Which famous brands are not sold in the US?
As of October 2026, we found no US sale of Anker SOLIX balcony products, Zendure SolarFlow or Bluetti Balco. Jackery's plug-in grid-tied products are not sold here either, and its US line is off-grid power stations. Some of these claims come from secondary sources. Do not import a European kit. It is built for a different grid, and UL 3700 is about US products.
The quick version
- Orderable now: CraftStrom, APsystems EZ1, Bright Saver.
- EcoFlow STREAM is sold out or on pre-order. STREAM Ultra restock is March 2027.
- Anker SOLIX, Zendure, Bluetti Balco and Jackery plug-in kits are not sold in the US.
- No complete kit is shown as UL 3700 certified. Makers say compliant or certified for the microinverter.