Diamond Energy Customer Reviews and Ratings in 2026
In 2026, Diamond Energy has a rating of 3.3 out of 5 on Trustpilot. And it has a rating of 4.2 out of 5 on ProductReview. Reviews of Diamond Energy by customers focused on their pricing, customer service and any issues or queries with billing or contracts. Along with our expert Selectra opinion, we have summarised their pros and cons to help you make the right choice when switching energy provider.
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What our energy expert has to say about Diamond Energy
Diamond Energy is a solid choice for customers who prioritise renewable energy and want simple, no-lock-in plans with clear benefits like on-time payment discounts and solar feed-in credits. Its commitment to green power is impressive, backed by a portfolio including biogas, wind, and solar generation. However, as Diamond offers only one residential plan, it may not suit customers seeking a wider variety of options or more customised pricing structures. Overall, Diamond Energy effectively balances environmental responsibility with reliable, customer-friendly service.
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Pros and cons of Diamond Energy according to Selectra
Strengths of Diamond Energy
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Weaknesses of Diamond Energy
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What do customers have to say about Diamond Energy on ProductReview, Trustpilot
The table below offers an overview of the average rating for Diamond Energy based on customers opinions from popular review websites.
| Platform | Rating | Number of Reviews |
|---|---|---|
| ProductReview | 4.2 out of 5 | 113 |
| Trustpilot | 3.3 out of 5 | 419 |
73% of ProductReview of Diamond Energy are positive reviews.
Diamond Energy stands out in Australia for putting clean power at the centre of everything it does, offering customers the choice of sourcing most or even all of their electricity from renewable energy through 50% or 100% GreenPower options. It’s particularly attractive for solar households and businesses, with competitive feed-in tariffs that reward you for the energy you export back to the grid and a clear focus on technologies like solar, wind and biogas. Plans are kept simple and flexible, with no lock-in contracts or exit fees, so you can leave at any time without penalty, and extra savings are available for paying on time and using direct debit. Customers can also choose from familiar payment methods such as BPAY and credit card, and benefit from straightforward, easy-to-read bills, which helps keep track of energy usage and costs. Combined with generally positive customer feedback and availability across major east-coast states, Diamond Energy appeals to people who want reliable power while actively supporting a greener Australian energy system.
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