{"product_id":"apsystems-ez1-lv-add-on-microinverter-expansion-unit-apmeter-required","title":"APsystems EZ1-LV Add-On Microinverter — Expansion Unit (APmeter Required)","description":"\u003cdiv style=\"border-left:4px solid #EA580C;background:#FFF7ED;padding:14px 18px;margin-bottom:22px\"\u003e\n\u003cp style=\"margin:0\"\u003e\u003cstrong\u003eThis is an expansion unit. It does not include a smart meter, and it will not work on its own.\u003c\/strong\u003e Buy this only if you already own — or are buying at the same time — an \u003ca href=\"\/products\/apsystems-ez1-lv-plug-in-solar-kit-microinverter-apmeter-zero-export\"\u003eEZ1-LV Plug-In Solar Kit\u003c\/a\u003e with the APmeter. On its own this inverter has no way to limit export, which means it is not compliant to operate in California.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eAdding a second or third pair of panels does not mean buying a second or third smart meter. One APmeter measures at your service panel — the single point where all household power flows in and out — so it manages every EZ1 on the property from that one measurement. Buy the meter once, then add inverters as your array grows. (New to zero export? Read \u003ca href=\"\/blogs\/news\/do-you-have-to-wait-for-sb-868-how-zero-export-plug-in-solar-works-today\"\u003ehow zero-export plug-in solar works\u003c\/a\u003e.)\u003c\/p\u003e\n\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eYou bought a kit and want to expand from two panels to four, six or more\u003c\/li\u003e\n  \u003cli\u003eYou are ordering a larger system up front — one kit, plus add-on inverters for the extra panel pairs\u003c\/li\u003e\n  \u003cli\u003eYou are replacing a failed inverter on a system whose APmeter is still fine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat you get\u003c\/h3\u003e\n\u003cp\u003eOne EZ1-LV microinverter, the same model that ships in our kit. It is built for 120 V North American homes, delivers as much as 900 W, and accepts a pair of solar panels, each on its own maximum power point tracker. A five-metre AC lead with a standard plug comes attached. The only thing missing from the box is the meter.\u003c\/p\u003e\n\n\u003ch3\u003eCheck your circuit before you order\u003c\/h3\u003e\n\u003cp\u003eThis is the constraint that actually limits how many EZ1 units you can run, and it catches people out. Each EZ1-LV can deliver up to 900W. A standard 15A\/120V branch circuit has 1,800W of capacity, and continuous-load rules limit you to roughly 1,440W of that — so one EZ1 fits comfortably and two do not. A 20A circuit gives you about 1,920W usable, which accommodates two.\u003c\/p\u003e\n\u003cp\u003eAnd that is before anything else plugged into the same circuit. If the outlet you are using also feeds a garage freezer or a workshop, the available headroom is smaller than the breaker suggests.\u003c\/p\u003e\n\u003cp\u003eRunning more than one or two units generally means either a \u003ca href=\"\/pages\/book-an-electrician\"\u003ededicated circuit\u003c\/a\u003e or splitting units across separate circuits. Have an electrician confirm what your panel and wiring will take before you order multiples — it is a five-minute conversation that avoids a nuisance-tripping system. You can add an \u003ca href=\"\/products\/electrician-visit-plug-in-solar\"\u003eElectrician Visit\u003c\/a\u003e to the same order.\u003c\/p\u003e\n\n\u003ch3\u003ePairing\u003c\/h3\u003e\n\u003cp\u003eAdditional units pair through the AP EasyPower app the same way the first one did. The APmeter then throttles across all paired inverters together, keeping total household export at zero regardless of how many are producing.\u003c\/p\u003e\n\n\u003ch3\u003ePairs well with\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallel bus cable\u003c\/strong\u003e — links several EZ1 units into one connection, so each inverter doesn't need its own outlet. Choose the \u003ca href=\"\/products\/apsystems-ez1-dual-parallel-bus-cable-2m\"\u003e2m\u003c\/a\u003e for side-by-side units or the \u003ca href=\"\/products\/apsystems-ez1-dual-parallel-bus-cable-4m\"\u003e4m\u003c\/a\u003e for wider layouts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMC4 DC extension leads\u003c\/strong\u003e — for panels mounted farther from the inverter than their own leads allow. Lengths from 1m to 4m are coming soon to \u003ca href=\"\/collections\/cables-accessories\"\u003eCables \u0026amp; Accessories\u003c\/a\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/apsystems-lte-usb-dongle\"\u003eLTE USB Dongle\u003c\/a\u003e\u003c\/strong\u003e — cellular monitoring where Wi-Fi doesn't reach the array.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStarting from scratch?\u003c\/strong\u003e You need the \u003ca href=\"\/products\/apsystems-ez1-lv-plug-in-solar-kit-microinverter-apmeter-zero-export\"\u003eEZ1-LV Plug-In Solar Kit\u003c\/a\u003e instead — it includes the APmeter this unit depends on.\u003c\/p\u003e","brand":"APsystems","offers":[{"title":"2m — same circuit as existing EZ1","offer_id":43467051597872,"sku":"APS-EZ1-LV-ADDON-BUS2","price":456.99,"currency_code":"USD","in_stock":true},{"title":"4m — same circuit, units further apart","offer_id":43467119919152,"sku":"APS-EZ1-LV-ADDON-BUS4","price":468.99,"currency_code":"USD","in_stock":true},{"title":"Not needed — separate circuit","offer_id":43467119951920,"sku":"APS-EZ1-LV-ADDON","price":409.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/3391\/6464\/files\/product-apsystems-ez1-lv.png?v=1786080618","url":"https:\/\/www.inchargesolar.com\/products\/apsystems-ez1-lv-add-on-microinverter-expansion-unit-apmeter-required","provider":"InCharge Solar","version":"1.0","type":"link"}