Our work across Taranaki

Systems Streamline Solar has designed and installed, with the panel counts, inverters and battery sizes for each one. From a 90.9 kW dairy cow shed to a city roof in New Plymouth.

Farms and agriculture

Solar panels covering the full length of the milking shed roof on a 1,000-cow dairy at Waitotara, with silos, effluent ponds and the farm race around it

90.9 kW on a dairy cow shed, Waitotara

Part two of three at Pukeone Farm, a generational dairy milking about 1,000 cows. The shed roof runs east to west, so the east side covers morning milking and the west holds generation into the afternoon. That spread suits a shed running early and late rather than a midday peak. Sized for the real loads: milking, milk chilling, grain smashing and water heating.

System size
90.9 kW DC
Panels
180 × 505 W
Inverter or battery
Sigenergy 99.9 kW hybrid inverter
Where
Pukeone Farm, Waitotara
A ground-mounted solar array in open paddock on a Waitotara dairy farm, with the irrigation pump housing beside it

62.64 kW for pivot irrigation, Waitotara

Part three at Pukeone. The pivots run through the high-sun months, so the load lines up with generation. The inverter is deliberately oversized against the array, which lets the farm add panels later without swapping the unit. Irrigation here is 50 kW of pumps running 24 hours a day through summer.

System size
62.64 kW DC
Panels
108 × 580 W
Inverter or battery
Sigenergy 99.9 kW inverter, sized for expansion
Where
Pukeone Farm, Waitotara
Solar panels running the length of a dairy shed roof on a 400-cow farm at Inglewood, with green Taranaki farmland behind

35 kW on a 400-cow dairy shed, Inglewood

A family dairy running about 400 cows, where shed power was only going one way. North-facing shed roof, installed between milkings so the herd and the roster were barely interrupted. Every panel has its own microinverter, so a dirty or shaded module does not drag the rest down, and output is monitored panel by panel. Hayden estimates payback on power savings at around five years.

System size
35 kW DC, 27.0 kW AC
Panels
70 × 500 W
Inverter or battery
70 × Enphase IQ8HC microinverters, 25 year replacement warranty
Where
Inglewood
A ground-mounted solar array running beside the farm road at Pukeone Farm, Waitotara, feeding the farm homes and workshops

31.32 kW for farm homes and workshops, Waitotara

Part one at Pukeone. Centralised metering meant a single system could feed several homes and workshops, so the array went in the paddock beside the meter. Short cable run, no roof work, easy to service. Solar covers the day and the battery covers the evening and blackouts, so the houses stay up when the lines go down.

System size
31.32 kW DC
Panels
54 × 580 W
Inverter or battery
Sigenergy 20 kW inverter, 27 kWh Sigenergy battery
Where
Pukeone Farm, Waitotara
Solar panels covering the length of a farm shed roof on a coastal Taranaki sheep and beef farm, with paddocks running down to the sea

Solar on a coastal sheep and beef farm, North Taranaki

A dry stock farm in coastal North Taranaki with several homes on the property. Streamline combined the power supply onto one centralised meter, so the farm pays one line charge instead of a bill for every house, then sized a rooftop system to match. Sea spray and corrosion decided the kit: Maxeon panels for the solid copper backing, and an inverter at each panel rather than one string box on a wall.

System size
13.5 kW DC
Panels
30 × 450 W SunPower Maxeon
Inverter or battery
Enphase microinverters, one per panel
Where
Coastal North Taranaki

Homes

A flat-mounted black solar array covering a house roof in New Plymouth

14.14 kW on a flat roof, New Plymouth

A flat-mounted array, which sits at a lower tilt than a pitched north-facing roof and generates less per panel as a result. The answer was more capacity plus module-level conversion. Each panel has its own inverter, so one weak module or a patch of shade does not pull a whole string down. Residential solar on a difficult roof.

System size
14.14 kW DC, flat mounted
Panels
To be confirmed
Inverter or battery
10.5 kW Enphase microinverters
Where
New Plymouth
Solar panels across the roof of a coastal home at Oakura, with farmland and the Taranaki coast behind

12.6 kW on a coastal home, Oakura

A coastal home with a roof that already faced the right way, so the job was about sizing rather than engineering around a bad pitch. Good sun, a clean north-facing plane, and daytime load that matches a solar day. The brief was cost-neutral living, not an oversized array on the wrong roof.

System size
12.6 kW DC
Panels
To be confirmed
Inverter or battery
Sigenergy 10 kW single-phase hybrid inverter
Where
Oakura
A ground-mounted solar array on a fenced rural block at Okato, with the panels angled north

12.24 kW ground mount with EV charging, Okato

A rural block where the client wanted a ground mount they could build themselves. Streamline did the electrical design, the gear, the cabling, the grid connection and the sign-off. The client fabricated and erected the frame to that design. It sits at the angle and orientation designed for the site and winter sun. No battery on this one, the brief was generation and charging, but the inverter can take storage later.

System size
12.24 kW ground mount
Panels
24 × 510 W
Inverter or battery
Sigenergy 10 kW hybrid inverter, Sigenergy 7 kW EV charger
Where
Okato
Solar panels covering a house roof in central New Plymouth, seen from directly above

8.1 kW and battery on a city roof, New Plymouth

A home in central New Plymouth. City roofs give you less area and city households use more in the evening, so the array fits the available plane and the battery does the shifting. Daytime solar goes into storage and comes back out after work, so the house is not buying peak units at the worst time of day.

System size
8.1 kW DC
Panels
18 × 450 W
Inverter or battery
Sigenergy 6 kW inverter, 15 kWh battery
Where
New Plymouth CBD
A ground-mounted solar array on a coastal clifftop property above the Taranaki sea, with the panels angled toward the north

Off-grid solar on a coastal clifftop

A home on the cliff at Tongaporutu running fully off grid, with no grid backup at all. The array sits on the side of the cliff, so access, structure, wind loading and cable routes were all non standard. Hayden describes it as a design that did not come out of a catalogue.

System size
10.1 kW DC
Panels
20 × 505 W panels
Inverter or battery
Sigenergy 10 kW inverter, 27 kWh Sigenergy battery
Where
Coastal Taranaki
Solar panels on the roof of a modern new build home at Lepperton

12.8 kW and 27 kWh on a new build, Lepperton

A modern new home on the New Plymouth side of Lepperton, with the load to match: heat pumps, induction, and wired for an EV. Hayden describes it as the kind of house where a battery stops being a nice extra and starts making economic sense. Solar covers the day, the battery takes the evening peak and the overnight and morning draw.

System size
12.8 kW DC
Panels
Roof mounted array, sized to the roof and the load
Inverter or battery
10 kW Sigenergy hybrid inverter, 27 kWh Sigenergy battery
Where
Lepperton, New Plymouth
Solar array on the roof of a large Westown home in New Plymouth

54 kWh of storage on a large Westown home

An existing solar home that had outgrown its battery. Streamline kept the array that was already there and added to it, stripped out the Tesla Powerwall and Gateway, and replaced the lot with a single Sigenergy stack. The result is a three phase system with more than fifty kilowatt hours of usable storage behind it.

System size
Existing array retained and extended, total to be confirmed
Panels
Existing panels kept, further panels added
Inverter or battery
SigenStor EC 20.0 TP, 20 kW three phase, 4 MPPT, up to 32 kW PV. 6 × BAT 10.0, 54.24 kWh nominal and 52.56 kWh usable
Where
Westown, New Plymouth

Business and community

Solar panels on the long roof of the former Riverlea Primary School building in rural South Taranaki

18 kW and 27 kWh at the former Riverlea School, South Taranaki

The old Riverlea Primary School, inland from Hāwera, now in new use. It needed a system that worked on day one and could grow without replacing the inverter. The 20 kW inverter is not maxed out by an 18 kW array, and that headroom is the point. More panels and more battery modules can be stacked later on the same platform, app and grid connection.

System size
18 kW
Panels
To be confirmed
Inverter or battery
Sigenergy 20 kW 3-phase hybrid inverter, 27 kWh Sigenergy battery
Where
Former Riverlea Primary School, South Taranaki
Ruru House early learning centre at Lepperton, the building the commercial solar, battery and EV charging system was installed on

16.16 kW, battery and EV charging at Ruru House, Lepperton

Ruru House is a purpose-built early learning centre just outside New Plymouth. Three-phase supply, so a 3-phase inverter matches it without splitting the job across single-phase gear. Panels produce while the centre is open, surplus charges the battery for late afternoon, and the car park charger draws from solar first, then the battery, then the grid, all on one system and one app.

System size
16.16 kW
Panels
32 × 505 W Suntech
Inverter or battery
Sigenergy 15 kW 3-phase inverter, 18 kWh battery, 11 kW 3-phase EV charger
Where
Ruru House, Lepperton
Photography to follow

11 kW and 18 kWh for Te Rau o Rongo Charitable Trust, Onaero

A Sigenergy solar and battery system at the Trust’s kai maara in Onaero. It powers their whenua-based mahi, growing kai, running programmes and supporting whānau, while cutting grid costs and keeping essential loads running once the sun goes down. Built for a community site that needs reliable power, not just a lower bill.

System size
11 kW
Panels
Suntech 475 W
Inverter or battery
10 kW Sigenergy hybrid inverter, 18 kWh Sigenergy battery
Where
Onaero, North Taranaki
Black solar panels on the roof at Ember Heating, Lepperton, looking out over a paddock of young trees

12.32 kW, 18 kWh and solar hot water for Ember Heating, Lepperton

A 10 kW Sigenergy hybrid system for Ember Heating’s premises. Hot water runs off the Sigenergy smart port on its own schedule, so the cylinder heats from solar and stored energy instead of drawing from the grid at peak times. Lower running costs, with power and hot water still available after dark.

System size
12.32 kW DC
Inverter or battery
10 kW Sigenergy hybrid inverter, 18 kWh battery, hot water on the smart port
Where
Lepperton

Seen one like yours?

The assessment is free and it comes first. We come to the property, look at the roof and the switchboard, and size it to what you actually use.

Book a free assessment Call 021 144 1326