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Business Details
42 Years
experience
Your Trusted Energy Solutions Provider in SA
Cool or Cosy, part of the Homeworks Co Group, has been South Australia's leading energy solutions provider since 1984. With over 35 years of experience, we specialise in high-quality energy efficiency products and services, including solar systems, insulation, and battery storage. As a Clean Energy Council member since 2010, we are committed to innovation, customer service, and integrity. Our team of experts, combined with reputable brands, ensures reliable solutions for both residential and commercial clients. We hold Australian Standards Licence 4859, underscoring our dedication to quality. With over 45,000 satisfied customers and recognition as South Australia's largest solar installer, we pride ourselves on delivering value-for-money solutions.

Our in-house finance options and turn-key approach simplify the process for clients. Locally manufactured products, including Australian-made Tindo Solar panels, highlight our commitment to sustainability and local industry. We employ over 70 South Australians and are an Equal Opportunity Employer. Our cellulose insulation, used in over 45,000 homes, exemplifies our focus on environmentally friendly, high-performance materials. From small domestic projects to large commercial installations, we provide tailored energy solutions that meet diverse needs.
Services
Solar System Installation Ceiling Insulation Window Shutters Battery Storage Solutions Smart System Monitoring Commercial Solar Solutions Insulation Assessment Roller Shutters Energy Efficiency Products In-house Financing
Details
  • Year established: 1984
Highlights and features
  • Over 35 years of experience in energy efficiency solutions
  • Largest solar installer in South Australia with 14,000+ systems installed
  • Clean Energy Council approved retailer since 2010
  • Australian-made Tindo Solar panels with 25-year warranty
  • In-house finance options with $0 deposit available
Associations and certifications
  • Clean Energy Council
  • Australian Standards Licence 4859
What people say
Friendly and professional team Excellent installation quality Significant electricity bill savings Prompt follow-up service Custom solar solutions
Services
Solar System Installation
We design and install custom solar systems using Australian-made Tindo Solar panels. Our solutions cater to residential and commercial properties, maximising energy generation and cost savings. With over 14,000 systems installed, we ensure compliance with Australian standards and offer 25-year warranties. Our team handles system design, finance, and installation for optimal efficiency.
Ceiling Insulation
Our Supacell cellulose insulation provides superior thermal performance with a lifetime guarantee. Installed without gaps, it reduces energy costs by maintaining consistent indoor temperatures. Made from recycled materials, it's fire-resistant and environmentally friendly. We offer free assessments and ensure compliance with Australian installation standards.
Battery Storage Solutions
We supply and install advanced battery systems including Tesla Powerwall, LG Chem, and sonnenBatterie. These solutions store excess solar energy for nighttime use, reducing grid reliance. Our systems integrate seamlessly with existing solar setups and offer backup power during outages. Flexible financing options are available for storage upgrades.
Window Shutters
Our Australian-made roller shutters enhance security, insulation, and noise reduction. Custom-manufactured to fit any opening, they feature polyurethane foam cores for durability. Available in multiple colours and configurations, they provide bushfire protection and light control. We offer free quotes and professional installation services.
Commercial Solar Solutions
We deliver tailored solar systems for commercial properties, reducing operating costs and environmental impact. Our turn-key approach includes system design, government subsidy applications, and installation. Businesses benefit from durable, high-performance systems with flexible financing options. We handle projects of all sizes across South Australia.
People
Glenn Morelli
Managing Director
Glenn joined Cool or Cosy in 1994, progressing from Sales Consultant to Managing Director after purchasing the company. Under his leadership, the business grew to employ over 40 South Australians and became the state's largest solar installer. He prioritises ethical practices and customer-first service.
Michael Richter
Retail Sales Manager
Michael brings over 8 years of renewable energy experience, focusing on retail and commercial solar solutions. He mentors sales teams to deliver exceptional customer service and has coached sports teams for 20+ years. He joined Cool or Cosy to lead in a growing industry.
Lee Coventry
Accounts / Office Manager
Lee has worked at Cool or Cosy since 1992, progressing from Scheduling Coordinator to Finance Manager. She manages payroll and financial controls while completing a Bachelor of Accounting. She enjoys spending time at the River Murray with her family.
Darren Finneran
Operations Manager
Darren joined with 20 years of electrical industry experience, including HV power and renewables. He oversees daily operations, ensuring quality installations. A family man, he supports his children's sports activities and is active in his local Surf Life Saving Club.
Mary-Ellen McMahon
Community Power Network - Engagement & Liaison
Mary-Ellen combines 10 years in renewable energy with community development experience. She manages engagement for the Community Power Network, focusing on solar and battery projects. She values family and community connections, with interests in the arts and outdoor activities.
Questions
What solar panel brands do you offer?
We supply Australian-made Tindo Solar panels, rated best overall by Choice Magazine, with 25-year warranties. We also offer international brands like LG Chem and Tesla Powerwall.
Can I add a battery to my existing solar system?
Yes, most existing systems can integrate batteries like Tesla Powerwall or sonnenBatterie. Installation typically takes a few hours, allowing energy storage for nighttime use or blackouts.
Do you provide financing options for solar installations?
We offer $0 deposit finance with flexible terms. Many customers qualify for SA Government rebates and Virtual Power Plant incentives, reducing upfront costs by up to 70%.
How does insulation reduce energy bills?
Our Supacell cellulose insulation prevents heat transfer through ceilings, maintaining stable indoor temperatures. This reduces reliance on heating and cooling systems, cutting energy consumption by up to 30%.
Are roller shutters suitable for bushfire-prone areas?
Yes, our CB Series roller shutters provide bushfire protection with heat-resistant materials. They act as a barrier against radiant heat and embers while offering security and thermal insulation benefits.
What warranties apply to your products?
We offer a lifetime guarantee on insulation installation, 25-year warranties on Tindo Solar panels, and 5-year warranties on roller shutters. Battery warranties vary by brand, up to 10 years.