About Us


Clean Energy Council Accredited Installer Solar Retailer - P4B Solar

P4B Solar & Energy Solutions specialises in providing economical, long-term energy solutions for commercial and residential customers.

We are principally a solar energy design and install enterprise and compliment these systems with supporting management and control technologies such as Power Factor Correction, Voltage Optimisation, Battery Storage and more.

Our company is a leader in the design and installation of both on-grid and off-grid systems, with our managing director Peter O'Leary a figurehead of commercial solar consultancy in South Australia.


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Peter O'Leary
Managing Director
0438 804 074
Email Peter
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Dominic O'Leary
Project Manager
0422 172 091
Email Dominic
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Isabelle Capoccia
Administrative Coordinator
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Email Isabelle

Our Promise

Five Year Guarantee


We believe that our clients make the business, and we are only as good as our product. To back this up we offer a 5-year workmanship guarantee on all systems installed by us. For up to 5 years after installation, we will guarantee all works carried out by our installers and guarantee hassle-free resolution of any issues which may arise.

We are contactable 7 days a week and will endeavour to reply to all enquiries within a business day.

Give us a call today to start saving money.

Financially & Technologically superior energy solutions

Valued Clients


Contact Us
Seppeltsfield Barossa Winery Jim Barry Winery Autobarn Mount Barker The Stirling Hotel Kaesler Wines Badge Construction Mount Barker District Council Opposite Lock

Two of our subsidiary wineries had the solar systems installed through Peter O’Leary at P4B Solar. For both cases, we have had very positive experiences, from feasibility analysis, to planning, to installation.

We find the service provided by Peter very professional and reliable. They have assisted and supported us from initial enquiry stage all the way through to installation, and have followed up and visited us on various occasions after installation to ensure the systems are properly operating and maintained.

I would highly recommend Peter as a consultant and service provider for a commercial solar system.

- Michelle Jin, Executive Director, Winston Wine Group

Product Partners


Solar Edge Fronius SMA Jinko Solar Canadian Solar Sonnen LEG Chem