Premium 19kW Solar System for High-Usage Perth Homes
A 19kW solar system is a high-output residential solar solution for Perth homes with very high electricity usage, larger roof space and future energy upgrade plans. It is designed for households that want stronger solar production, improved daytime self-consumption and optional battery-ready flexibility for long-term energy control.
Approximate production in suitable Perth conditions. Final output depends on roof, shade, season and system design.
Why a 19kW Solar System Makes Sense in Perth
A 19kW solar system is designed for homes that need significantly more energy production than standard residential solar packages. Perth’s strong sunlight makes this system size attractive for households that want to offset large daytime loads and prepare for future electrification.
This system size is especially useful when the home uses electricity throughout the day. It can support larger appliance loads, pool pumps, ducted air conditioning, home office equipment, electric cooking, electric hot water, workshops and future EV charging.
- Much stronger daily solar production than 6.6kW, 10kW and 13kW systems
- Suitable for large homes with very high electricity bills
- Strong fit for three-phase homes where network approval allows
- Helps support heavy daytime loads such as pool pumps, air conditioning and electric hot water
- Better suited to households planning EV charging or future electrification
- Strong foundation for optional battery-ready planning
- Makes better use of large roof areas
- Can improve long-term savings when more solar energy is used directly in the home
- Useful for homes moving toward electric transport, battery storage and smarter energy control
Solar Harvest 19kW Solar Package
One premium high-output solar solution customised around your home, electricity usage, roof space, phase type, inverter requirements and future energy goals.
Premium 19kW Solar System
Our 19kW solar package is designed for Perth homeowners who need a serious high-output residential solar system without confusing package tiers. We focus on one strong solar solution designed properly around your property and energy needs.
What’s Included
The final package is confirmed after checking your roof space, switchboard condition, phase type, usage pattern and network connection requirements.
- Approx. 19kW–19.8kW high-efficiency solar panel array
- Suitable inverter selection based on property, phase type and network requirements
- Common 15kW inverter pairing where suitable
- High-efficiency solar panels selected according to roof layout and performance needs
- Smart online monitoring app
- Professional solar layout based on roof direction, shade and available roof area
- Switchboard and site suitability review
- Western Power / network connection support where required
- STC rebate guidance where eligible
- Optional battery-ready system planning where suitable
- Optional EV charging discussion where relevant
- Export limit and connection requirement discussion
- Clean installation planning and commissioning
- Post-installation support and system performance guidance
19kW System Details at a Glance
A quick technical overview so customers can understand what a 19kW high-output solar system normally includes.
How Much Power Can a 19kW Solar System Produce?
A properly designed 19kW solar system in Perth can typically produce around 75–90kWh of electricity per day in suitable conditions. Summer production is usually stronger because of longer daylight hours, while winter production is naturally lower.
- Roof direction and roof pitch
- Shade from trees, chimneys, parapets or nearby buildings
- Solar panel efficiency and degradation rate
- Inverter performance and conversion efficiency
- Seasonal sunlight changes
- Roof space and panel layout
- Export limits and network connection requirements
- Household usage during solar production hours
- Whether optional battery storage is included later
- Three-phase load distribution and system design
Is a 19kW Solar System Right for Your Home?
A 19kW solar system is best suited to large, high-usage homes with enough suitable roof space and the right connection conditions.
Best Suited For
- Large 5+ person households
- Three-phase homes with high daytime electricity use
- Large homes with very high electricity bills
- Homes with multiple air conditioning zones
- Homes with pool pumps or large water features
- Homes using electric hot water timers
- People working from home with multiple devices or office equipment
- Homes with electric cooking and high daytime appliance usage
- Households planning optional battery-ready solar
- Homes considering one or more EV chargers in the future
May Not Be Ideal If
- Your roof has limited usable space
- Your roof is heavily shaded for most of the day
- Your electricity usage is low or mostly night-time only
- Your property cannot support the required inverter or network connection setup
- Your switchboard requires major upgrades before solar can be installed
- You cannot use much electricity during the day and do not plan optional battery storage
- A battery or load-shifting strategy is not being considered for excess daytime production
How Many Panels Do You Need for a 19kW Solar System?
The number of panels depends on the wattage of the selected solar panels. Modern high-efficiency panels can reduce the total number of panels required, which is useful when roof space is valuable.
A 19kW solar package usually needs around 40–51 panels depending on selected panel wattage and final system design.
Why a 15kW Inverter Is Common for a 19kW Solar System
A 19kW solar panel array is commonly paired with a 15kW inverter where suitable, depending on the property, network requirements, phase type and selected equipment.
Because solar panels do not operate at their maximum rated output all day, a larger panel array can help the inverter produce useful energy across more hours of the day.
- Practical design for very high-usage residential homes
- Helps maximise solar generation across more of the day
- Supports stronger daytime household usage
- Good balance between solar array size and inverter capacity
- Can suit three-phase properties where network approval allows
- Works well with optional battery-ready planning where compatible equipment is selected
- Provides a strong base for EV charging and future energy upgrades
- Helps increase usable generation during shoulder production hours
How a 19kW Solar System Helps Reduce Bills
A 19kW solar system can produce a large amount of daytime electricity, but the real financial value depends on how much of that energy your home uses directly. For larger systems, self-consumption planning becomes especially important.
STC Rebate Support for Eligible 19kW Solar Systems
Eligible solar systems in Australia may receive an upfront benefit through Small-scale Technology Certificates, commonly known as STCs. This incentive can help reduce the upfront cost of solar installation.
The final STC value depends on system size, installation location, installation year and certificate market value. Larger systems can attract a higher STC value than smaller systems, but the final discount must be calculated during the quoting process.
Optional Battery-Ready Solar for Future Energy Control
A 19kW solar system is a very strong foundation for optional battery-ready planning because it can generate much more solar energy than smaller systems.
- Store excess solar energy for night-time usage
- Reduce reliance on grid electricity after sunset
- Improve use of your own solar generation
- Prepare for future EV charging and energy growth
- Support selected backup power options where compatible
- Improve long-term energy independence
- Useful for homes with high evening consumption
- Can support larger storage options where system design allows
Ready for EV Charging and Future Energy Growth
A 19kW solar system is especially useful for households planning future energy upgrades. As more homes move toward electric vehicles, electric cooking, heat pumps, battery storage and smart energy systems, larger solar systems can provide a stronger foundation for future electricity needs.
- EV charger installation planning
- Optional battery storage
- Electric hot water timers
- Smart appliance scheduling
- Home office energy needs
- Air conditioning load management
- Pool pump scheduling
- Monitoring solar production and usage patterns
- Reviewing three-phase energy usage across the property
Connection Planning for Larger Solar Systems
A 19kW solar system usually needs more careful connection planning than smaller residential systems. Because of the larger inverter size, the property’s phase type, switchboard condition, export settings and network approval requirements must be reviewed before the system is confirmed.
- Single-phase or three-phase supply
- Existing switchboard condition
- Meter and export setup
- Approved inverter size
- Network approval requirements
- Export limit conditions
- Battery inverter interaction if storage is added
- EV charger planning if relevant
- Whether additional electrical upgrades are required
Simple, Clear Installation Process
A professional process from consultation to system design, grid approval, installation, monitoring and after-sales support.
Solar Consultation
We review your electricity bill, roof layout, energy usage, property details and future solar goals.
Roof & Site Check
Your roof space, shading, switchboard, meter box, phase type and inverter location are reviewed.
System Design
A suitable 19kW solar design is prepared based on roof direction, panel quantity and inverter selection.
Quote Confirmation
You receive a clear quote with selected panels, inverter, monitoring details, STC guidance and site notes.
Grid Approval
Grid connection and installation scheduling are managed according to property and network requirements.
Installation Day
Panels, inverter and electrical components are installed by qualified professionals.
Monitoring Setup
Your solar monitoring app is connected so you can track system production and performance.
After-Sales Support
Solar Harvest remains available for performance questions, optional battery-ready planning and future upgrades.
Why Choose Solar Harvest for Your 19kW Solar System?
Solar Harvest focuses on practical solar design, quality equipment and clear advice for Perth homeowners.
Practical System Sizing
We design one strong 19kW solution around your home, roof, phase type and actual energy usage.
Quality Equipment
We focus on quality solar panels, suitable inverter options and clean system design for large homes.
Monitoring Setup
Your monitoring app helps you understand solar production and performance after installation.
Connection Guidance
We discuss phase type, inverter approval, export limits, switchboard condition and network requirements.
Optional Battery & EV Planning
Where suitable, we discuss optional battery compatibility and future EV charging needs during design.
Long-Term Support
Solar Harvest remains available for performance questions, maintenance guidance and future upgrades.
19kW Solar System FAQs
Clear answers for Perth homeowners before choosing a high-output residential solar system.
Is a 19kW solar system enough for a Perth home?
Yes, a 19kW solar system can be enough for many large Perth homes with very high electricity usage. It is especially suitable for homes using energy during the day, such as air conditioning, pool pumps, home office equipment, electric cooking, electric hot water and future EV charging.
Is this a 19kW, 19.8kW or 19.9kW system?
Many 19kW solar packages are designed with a solar panel array around 19kW–19.8kW, depending on selected panel wattage. Some designs may reach around 19.9kW depending on panel count and inverter rules.
How much electricity can a 19kW solar system produce?
A 19kW solar system in Perth can typically produce around 75–90kWh per day in suitable conditions. Actual production depends on roof direction, shading, season, weather, equipment quality, export settings and system design.
How many panels are needed for a 19kW system?
Most 19kW solar systems need around 40–51 panels, depending on the wattage of each solar panel. Higher-wattage panels can reduce the total panel count.
What inverter size is used with a 19kW solar system?
A 15kW inverter is commonly used with a 19kW solar panel array where suitable. Inverter selection may differ depending on property type, grid approval, phase type, export settings and optional battery-ready planning.
Is a 19kW system suitable for single-phase homes?
A 19kW solar system is generally more likely to suit three-phase homes, but final suitability depends on inverter selection, network connection rules and approval.
Can I add a battery later?
Yes, optional battery-ready planning can be included during the design stage. Compatibility depends on inverter type, battery model, switchboard capacity, available space and system configuration.
Will solar work during a power outage?
A standard grid-connected solar system usually shuts down during a power outage for safety reasons. Backup power requires a compatible battery, suitable inverter and backup circuit design.
Is a 19kW solar system worth it?
For many large Perth homes with very high daytime electricity usage, a 19kW solar system can be a strong long-term investment. The value depends on self-consumption, tariffs, export settings, system cost and future energy needs.
How do I know if my roof is suitable?
Solar Harvest can review roof direction, shading, roof material, available space, switchboard condition, phase type and electricity usage before recommending the final system design.
Ready to See If a 19kW Solar System Is Right for Your Home?
Get a clear and practical solar recommendation based on your Perth home, roof space, phase type and electricity usage. Solar Harvest will help you understand whether a 19kW solar system is the right fit, what equipment may suit your property and whether optional battery-ready planning makes sense for your future energy needs.
Solar Harvest WA — Perth-focused solar solutions, practical system sizing and long-term customer support.