

Medium House Off-Grid Solar System
Is the PS: Medium House System Right for You? Find Out Below
Medium House Off Grid Solar System
Is The PS: Medium Home System Right for You? Find Out Below
Was 29,500 inc GST
Now From $23,750 inc GST*
*Special pricing until 1 December 2026 while current stock lasts. Excludes install & generator.

The Power Station Medium House Off Grid Solar System typically suits a family home with normal appliances. It could include electric cooking, hot water or heating depending on what’s running at the same time.
*Excludes install & generator. Talk to us about your options.
PS: Medium House Base Description
The expandable Medium House Base System is the starting point in our double 6kW inverter range, providing up to 12 kW of constant AC power (50 amps). It is designed for homes with moderate power use.
We’ll complete a Load Evaluation with you to work out if the four batteries included in the PS: Medium Base System are right for your needs, or whether you need more (or less).
You can add more panels and batteries to suit your actual power use, location and future needs.
14 x 430Wp high efficiency solar panels (6kW)
4 x 3.2kWh lithium iron phosphate batteries (12.8 kWh usable power)
Ongoing technical support and remote system monitoring after installation
Pre-installed in steel cabinets in our factory. Includes rails, fittings, DC components, cabling, warranties, WiFi monitoring & more
Need help to decide? Get in touch.
Are We the Right Fit for you?
Power Station may be a good fit if you’re looking for a professionally engineered off-grid system. Our systems are designed, built and tested in our Auckland factory. Our customers appreciate our focus on expert design, customisation, long-term value, reliability and ongoing support.
About the PS: Medium System
About the PS: Medium System
1. What Can the PS: Medium Run at the Same Time?
he PS: Medium uses two 6kW inverters to provide 12 kW of continuous AC power, or around 50 amps. It forms the starting point for the system design.
This makes it well suited to many family homes, particularly where some higher-powered appliances may be running at the same time.
For example, electric cooking, a busy kitchen, hairdryers, pumps or a second kitchen in a minor dwelling can quickly increase the amount of power being used at any one time.
When we design your system, we look at the combined AC load you’re likely to have running at the same time, not simply how many appliances you own.
That helps us work out whether the PS: Medium is the right starting point for you, or whether another configuration would suit you better.
2. How Much Power Will the Battery Bank Provide Over 24 Hours?
he base PS: Medium has 12.8 kWh of usable battery storage, made up of four 3.2 kWh battery modules.
How much battery storage you need depends on how much power you use over 24 hours and, importantly, when you use it. We’ll work this out with you as part of your Load Evaluation.
This will tell us whether the four batteries included in the PS: Medium Base System are right for your needs, or whether you need more (or less)
3. What’s the Minimum Number of Solar Panels?
he PS: Medium starts with 14 × 430W solar panels, providing approximately 6kW of solar capacity. Fourteen panels is the minimum configuration.
Depending on your winter power use, local sunshine and panel orientation, we may recommend additional panels to make sure your system can generate enough power during the lower-sunshine months.
The PS: Medium System can accommodate up to 28 × 430W solar panels, providing approximately 12 kW of solar capacity, so there’s plenty of room for expansion if your power consumption increases later.
4. Frequently Asked Questions
1. What’s included in the starting price?
The starting price includes the complete PS: Medium base system, including the inverters, four batteries, 14 solar panels, mounting equipment, electrical protection and our pre-assembled and tested equipment cabinets.
Freight, generator and installation are additional because these need to be calculated for your particular situation.
2. How much does installation cost?
We can provide an estimated installation cost based on your system and location. This is confirmed following a Technical Site Visit, when our installer checks the property, cable routes, equipment locations and proposed solar array.
The PS: Medium base system gives us a good starting point for estimating installation costs, but every site is different.
3. Do I need a backup generator?
Yes, we recommend an approved auto-start generator as part of a reliable off-grid system due to New Zealand’s latitude and unique climate. It provides backup during consecutive dark winter days and automatically starts when required.
4. What support do I get after installation?
You have ongoing support from Power Station after your system is installed, including system monitoring and assistance if something isn’t working as expected. We also manage the product warranties associated with your Power Station system.
See The PS: Medium in Action
See The PS: Medium in Action
Check out this video featuring Roy Maddox, Director and Rhys Coffin, Solar Designer. It’s a short overview of our latest generation ULTRA Off-Grid Power Plants fresh off the production line for 2026.
Benefits of Choosing Power Station
Free Design Service
After a brief phone or video call, we can provide you with pricing and sizing options based on your local sunshine hours, power consumption and goals.
Made In New Zealand
Proudly designed, engineered, assembled and tested in New Zealand to NZ & AU Regulations & Compliance Standards.
Maximum Longevity
The latest battery technology means a design lifespan of up to 8,000 ‘cycles’, equivalent to up to 20 years or more for exceptional value for money.
NZ-Certified & Approved
For your peace of mind, Power Station’s full off-grid systems are approved and certified in NZ
Grid or Generator Backup
Power Station systems have true off-grid capability with generator backup, with the option to connect to the grid as a battery backup.
Easily Expandable
Start with the essentials, then add more panels or batteries later based on your budget and goals.
Customer Stories
Customer Stories
We have manufactured and installed hundreds of off-grid solar systems around New Zealand (including the Pacific region). Everyone’s living situation is different, but here are a few customers’ stories in their own words.
Get in Touch
Get in Touch
Get help to decide if the PS: Medium House system is right for you
Is the PS: Tiny House System right for you?
Enter your details below or get in touch to find out. You can also Book a Free 15-Min Phone Call, call us on 0508 765 276 or email hello@powerstation.nz.
Get in Touch
Get in Touch
Get help to decide if the PS: Medium Home System is right for you
Is the PS: Small House System right for you?
Enter your details below. You can also Book a Free 15-Min Phone Call, call us on 0508 765 276 or email hello@powerstation.nz.