Powervault 15

More grunt. Same footprint. Own your power. Our biggest single-phase system — 15 kVA of clean power for larger homes and busy businesses, in one MEDA-built cabinet that pays for itself.

From $60,650 incl GST — standard 20-panel / 30 kWh build, supply-only. Configure your setup or get a tailored quote.

The Powervault15 takes everything people love about the Powervault10 and turns up the power. A single Victron MultiPlus II 48/15000 delivers 15 kVA (~12 kW continuous) — enough for heat pumps, hot water, workshop gear and an EV charger working together. 30 kWh lithium storage (expandable to 40 kWh) and a high-voltage 450 V SmartSolar RS charger that scales solar from 9.5 to 19 kWp, in the same compact cabinet with the same hands-off operation.

Built for

Larger homes, lifestyle blocks and small commercial sites on a single-phase supply that need more continuous power than a 10 kVA system — without stepping up to three-phase. Big loads, plenty of headroom.

What you get

• 1× Victron MultiPlus II 48/15000 inverter/charger — high-output single phase
• 6× Dyness DL5 lithium batteries — 30 kWh, expandable to 40 kWh
• 1× Victron SmartSolar MPPT RS 450/200 — 450 V, 4-tracker solar charger
• 20× Tongwei 475 W panels — 9.5 kWp (expandable to 40 panels / 19 kWp)
• Ekrano GX touchscreen + free VRM phone app
• MEDA cabinet — ventilated, lockable, all protection & isolation built in
• Grid + generator ready, with automatic changeover

Quick specs

How it works

1. Solar powers your place and charges the battery through the day.
2. Powervault stores that energy and runs everything 24/7.
3. Grid or generator steps in automatically only when you need a top-up.

We keep an eye on it — for you

Every Powervault can connect to MEDA Remote Monitoring. From our Tauranga base we watch your system around the clock, catch issues early and tune it remotely. You also get the free VRM app to track solar, battery and savings any time. MEDA Remote Monitoring is an optional service — get in touch to find out what's involved.

Why MEDA

• SEANZ member, 7+ years of NZ installs
• No cheap imports. No corners cut — only Victron, Dyness and brands we trust
• Tauranga installs, NZ-wide supply
• Real local support and remote monitoring — we’re here after the sale

Warranty & support

Victron inverter 5 years, Dyness batteries 10 years, panels 25-year product / 30-year performance, plus MEDA’s workmanship guarantee 2 years. (Confirm exact terms.)

FAQ

How is this different from the Powervault10? Same cabinet and storage, but a 15 kVA inverter instead of 10 kVA — ~50% more continuous power for heavier loads.

Single phase or three phase? Single-phase. If you’re on three-phase or need 24 kW+, look at the Powervault30.

Can I add more battery later? Yes — the busbar is pre-drilled for up to 8 batteries (40 kWh). Bolt-in expansion, no rebuild.

What happens in a power cut? You keep running on battery, seamlessly. Solar recharges you the next day.

Is it safe? Lithium LiFePO₄ with built-in management, switchless isolation, installed and certified by licensed electricians.

Own your power. Get a quote or book a free site assessment — info@meda.co.nz · meda.co.nz