15kW Power Booster Package

15kW Solar System in Perth

Bring your energy use and roof potential into the same conversation. MJM Solar’s 15kW Power Booster Package is an option for Perth businesses and higher-demand homes that need a larger solar assessment.

A 15kW solar system in Perth should be designed around the property’s working day, electrical supply and usable roof area. For an office, workshop or home business, the starting question is how much electricity is used while solar is being generated.

Package Overview

Your 15kW package at a glance

Package detail and proposed configuration for a typical 15kW design. Every figure is confirmed in your site-specific quote.

Solar panel capacity

15 kW package; exact array rating and panel count shown in your quote

Inverter

15 kW inverter configuration, subject to site design and connection assessment

Inverter brand options

Solis, Sigenergy, GoodWe, FoxESS, subject to model suitability and availability

Installation scope

Roof mounting, electrical work and commissioning as itemised in your site-specific quote

Battery storage

Optional; separately specified and priced

Installed price

Request a quote for your property and selected equipment

Right Fit

Is a 15kW solar system suitable for your property?

A business with regular daytime equipment use may have a useful match between solar production and demand. An office operating five days a week needs a different model from a business that runs refrigeration every day or machinery in short bursts.

Share operating hours, recent bills and interval electricity data if available. For a home, explain the major loads and when they run. A large floor area alone is not a reason to choose this system size.

What to share with us

These details help match the system to your demand.

What is included in the 15kW solar system price?

Ask for a site-specific installed quote identifying the panel model and count, inverter, mounting and electrical scope. Roof access equipment, a switchboard upgrade or work needed for the connection should be visible in the price rather than left as an assumption.

For business comparisons, confirm whether figures include or exclude GST. Any incentive deduction must have an eligibility basis, and any battery or backup equipment should be priced separately. Compare the whole project cost before choosing between equipment options.

How much can 15kW solar panels generate?

≈66 kWh / day

Illustrative Perth annual average

An illustrative Perth annual average is about 66 kWh/day, using the Australian Government benchmark. Actual output varies; request a site-specific monthly forecast.

Existing Solar

A new system, replacement or expansion?

The Power Booster name identifies the package; it does not mean 15 kW can automatically be added to an existing installation. Existing panels and inverters need to be assessed alongside the proposed work and the site’s total generation capacity.

If older equipment is being replaced, agree the removal scope and how the new design will use the roof. If equipment is staying, the quote should identify which parts remain, their condition and how they fit into the final system.

Installation Planning

Plan the installation around your property

01

Roof and access

Check the usable roof sections, roof condition and safe access for the proposed work.

02

Electrical design

Assess supply phase, switchboard capacity, other generation and the connection requirements.

03

Work schedule

Agree site access, any planned interruption and the handover arrangements before installation.

See our residential solar service for the wider process. If the project is residential, tell us at the start so the assessment and quote reflect how your home operates.

Compare Sizes

Compare the next size before you commit

13.3kW

For a home

A 13.3kW package may be worth comparing for a home.

This package

15kW

Power Booster Package

Match the extra energy you can use, roof fit and total project cost.

20kW

Stronger daytime demand

A home or business with stronger daytime demand can compare the 20kW package.

The decision should follow the extra energy you can use, roof fit and total project cost.

FAQ

15kW solar questions

Still have a question about your 15kW design? Call 0475 404 818 or send MJM Solar an enquiry.

As a calculation example, 30 panels at 500 W total 15 kW. The actual module selection and roof plan determine the installed count and dimensions. Check those details on the proposal.

Solar can reduce imported energy when production overlaps with demand. Fixed charges can remain, and any demand-related charges need separate analysis against your tariff and measured peaks. Request an estimate that separates these items.

A battery can be assessed as a separate part of the project. Review the compatible equipment, storage capacity, output power and intended use. Backup for business equipment requires a defined design rather than an assumption that all circuits will run. See our battery storage options.

Free Site-Specific Quote

Request a 15kW site assessment

Tell us whether the property is a home or business, whether solar is already installed and what you want to improve. Contact MJM Solar on 0475 404 818.