Powervault 10

Own your power. One cabinet. Whole home. A complete single-phase solar + battery system that slashes your power bills, keeps the lights on when the grid drops out, and even heats your hot water from spare sun — designed, built and backed by MEDA.

From $43,800 incl GST — standard 12-panel / 20 kWh build, supply-only. Configure your setup or get a tailored quote.

The Powervault10 is a ready-to-run home power system in a single MEDA-built cabinet: 10 kVA of clean power, 20 kWh of lithium storage (expandable to 40 kWh) and 5.7–17.1 kWp of solar — all wired, tested and commissioned before it reaches your wall. Solar runs your home and charges the battery by day; the battery carries you through the night; spare solar heats your hot water; and grid or generator quietly tops up only when needed.

Four ways to run it

One cabinet, set up to suit your place — and reconfigured later as your needs change:

• Off-grid — no mains at all; solar and battery run everything, with an optional generator for the worst weather.
• Grid backup — the grid stays your everyday supply and the battery sits ready, taking over the instant the power cuts so your essential circuits stay on.
• Solar self-consumption — uses your solar and battery first and the grid only when needed, trimming your bill with backup built in; can cover the whole home and, where approved, export the surplus.
• Whole-home hybrid — your whole house runs through the Powervault, solar and battery first, grid last — simple, no extra metering.

Grid-connected modes that export power need your lines company's approval (AS/NZS 4777) — we handle that with you.

Built for

Homes, lifestyle blocks and small businesses that want to cut power bills, ride through outages, and take control of their energy. If you're on a single-phase supply and want serious storage with room to grow, this is your system.

What you get

• 1× Victron MultiPlus II 48/10000 inverter/charger
• 4× Dyness DL5 lithium batteries — 20 kWh, expandable to 40 kWh
• 1–2× Victron SmartSolar 250/100 MPPT charger(s) — one standard, a second for big arrays
• 12–36× Tongwei 475 W panels — 5.7 to 17.1 kWp, sized to your roof
• Ekrano GX touchscreen + free VRM phone app
• MEDA cabinet — ventilated, lockable, all protection & isolation built in
• Runs your way — off-grid, grid-backup or solar self-consumption (see “Four ways to run it”)
• Smart solar diversion — spare solar heats your hot water (or any load you choose) instead of going to waste

Solar, sized to suit you

Start with what you need and grow later — the cabinet and busbar are already set up for a second solar controller.

Free hot water from the sun

When your battery is full and the sun's still shining, the Powervault doesn't waste the surplus — it automatically sends it to your hot-water cylinder through the inverter's second output. A sunny day tops up your hot water for free, on top of charging your battery. It switches on near a full battery and eases off as it comes down, with an optional boost if you want a guaranteed top-up. Hot water is the standard setup, but it can drive any resistive load you choose — towel rails, underfloor heating, a pool or spa. The more solar you fit, the more free heat you get — and for hot water there's no new plumbing, it uses your existing electric element.

Quick specs

What it costs

The price depends on your setup — solar size (12–36 panels), battery capacity (20–40 kWh), the mode you run it in, and supply-only vs installed. We start from the standard 12-panel / 20 kWh / supply-only build (from $43,800 incl GST) and quote your exact configuration. Get a tailored quote or book a free site assessment and we'll size and price it with you.

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

Victron inverter 5 years · Dyness batteries 10 years · Tongwei panels 25-year product / 30-year performance · MEDA workmanship guarantee 2 years.

FAQ

Will it run my whole house? ~8 kW continuous — plenty for a typical home. Spread very heavy simultaneous loads (oven + hot water + EV + pumps at once).

Can I add more solar later? Yes — start at 12 panels and grow to 18 on the same controller, or up to 36 by adding a second controller (the cabinet and busbar are already set up for it).

Can I add more battery later? Yes — the busbar is drilled for up to 8 batteries (40 kWh), so it's a bolt-in upgrade.

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

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