Summit Solar

Solar for a brighter tomorrow.

Generate your own clean energy, reduce your power bills and gain more control over your energy use.

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How solar works

  1. Sunlight

    Sunlight hits your solar panels.

  2. Panels

    Panels generate DC electricity.

  3. Inverter

    An inverter converts it to usable electricity for your home.

  4. Your home

    Power your home, with any excess sent to the grid or stored in a battery.

The benefits of solar

Lower power bills

Use your own power instead of buying it from the grid.

Reduce your impact

Lower your environmental footprint with clean energy.

Energy independence

Less reliance on the grid and rising power prices.

Add value

Solar can increase the value of your home.

Planning your system

Start with how you use power

The right system is sized to your household, not a one-size-fits-all package. Before we quote, we look at three things.

How much you use

Your power bill or retailer app shows how many kWh you use in a year. The average New Zealand home uses around 7,000 kWh. Knowing your number lets us size the panels to match.

When you use it

Solar produces during the day. If the house is busy in the daytime you’ll use most of it directly. If everyone’s out until evening, a hot water diverter, timers or a battery help you make the most of it.

What’s coming next

Thinking about an EV, a heat pump, a spa or a bigger family? Tell us now so your system — especially the inverter — has room to grow.

What matters most to you?

Lower power bills

Panels sized to your use, with appliances like the dishwasher and hot water shifted into sunny hours.

Quickest payback

A well-sized system and efficient inverter, usually without a battery to start with.

Power in an outage

A backup-capable inverter and battery, wired to keep essentials running. A common ask on rural Wairarapa lines.

Big energy users

EVs, workshops, pumps and spas need a larger array and an inverter that can keep up.

Is your roof right for solar?

Here’s what we check when we visit. Most roofs don’t need to be perfect to work well.

Space

Ideal
About 70 m² — room for a 10 kW system
Good
About 35 m² — room for 5 kW
Tricky
Under 20 m²

Each panel is roughly 1.6–2 m².

Direction

Ideal
North, north-east or north-west
Good
East or west
Tricky
South-facing

Angle

Ideal
30–45° pitch
Good
15–30° pitch
Tricky
Nearly flat or very steep

Tilt frames can lift panels on flatter roofs.

Condition

Ideal
New or recently redone
Good
No major work due for 10+ years
Tricky
Needs replacing soon — do the roof first

Shade

Ideal
No shade
Good
A little early or late in the day
Tricky
Trees or buildings shading it around midday

Short on roof space?

On a lifestyle block, panels can go on a shed or on a ground-mounted frame. Ground-mounted systems don’t need building consent but do have to meet the Building Code and district plan rules. In rural areas, that usually means keeping them at least 5 m from boundaries, roads and houses. We’ll check what applies to your property.

Want a rough idea before we visit? Try the EECA solar payback calculator, or see how much sun your address gets with NIWA’s SolarView, which covers the whole Wairarapa using local sunshine records. We’ll always confirm with a proper look at your roof. Guidance on this page draws on EECA’s solar planning advice.

Tailored to your property

Is solar right for you?

Every property is different. We’ll look at your roof, electricity use, goals and budget to design a system that works for you.

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Quality products, professional installation

We use proven, reliable equipment from leading brands, sourced through an established New Zealand electrical wholesaler, and designed and installed by our qualified team — including an electrician holding the Photovoltaic (PV) Solar Systems Design and Installation and Mains Parallel Generation endorsements.

Solar panels

Modern N-type bifacial panels, typically 440–515 W each, including all-black panels that sit neatly on darker roofs.

Hybrid inverters

Battery-ready inverters from 5 kW for a typical home, up to 30 kW three-phase for farms, workshops and businesses.

Microinverters

For roofs with shade or panels facing several directions, each panel works independently so one shaded panel doesn’t drag the rest down.

Home batteries

Modular batteries from around 5 to 10 kWh per module, which can often be expanded later as your needs grow.

EV chargers

7.4 kW single-phase home chargers, or 11–22 kW three-phase where your supply allows.

Mounting & protection

Roof rails, tilt frames and ground mounts, plus the isolators, switchgear and labelling that keep everything safe.

Meet the team