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 3.9 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 | 3.9 out of 5 | 110 |
| Trustpilot | 3.3 out of 5 | 419 |
73% of ProductReview of Diamond Energy are positive reviews.
Diamond Energy stands out in Australia for putting renewable power at the centre of everything it does, giving households and businesses the option to choose 50% or 100% GreenPower while also rewarding customers who generate their own solar energy with competitive feed-in tariffs. Its plans are designed to be 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 by direct debit. Customers benefit from clear, easy-to-read bills and straightforward tariff options rather than a confusing mix of products, and the provider’s strong focus on green generation—drawing heavily on sources like solar, wind and biogas—means your everyday electricity use can have a smaller environmental footprint without sacrificing reliability or service quality.
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