Diamond Energy Customer Reviews and Ratings in 2025

Updated on 11/12/2025

In 2025, Diamond Energy has a rating of 3.5 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.

SavannahEnergy Expert - Selectra

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Pros and cons of Diamond Energy according to Selectra

Strengths and weaknesses of Diamond Energy
Strengths of Diamond Energy Strong commitment to renewable energy with 50% or 100% GreenPower options and high feed-in tariffs for solar customers. No lock-in contracts or exit fees, providing customer flexibility. Discounts for paying on time and via direct debit, plus simple, transparent billing.	Weaknesses of Diamond Energy Only one residential plan available, limiting choice for customers seeking diverse options. Pricing may vary by region and distributor, potentially affecting savings. Some customers report occasional billing or service delays.

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.

Online Reviews for Diamond Energy
Platform	Rating	Number of Reviews
ProductReview	3.9 out of 5	110
Trustpilot	3.5 out of 5	419

73% of ProductReview of Diamond Energy are positive reviews.

Why Diamond Energy has more positive reviews?

Diamond Energy’s appeal lies in how easy it makes going greener without sacrificing convenience or value: customers can choose 50% or 100% GreenPower, and solar households benefit from competitive feed-in credits, all on simple, no‑lock‑in plans with no exit fees. Billing is clear and predictable, with optional discounts for paying on time or by direct debit, plus flexible tariff choices like single rate or time‑of‑use to match how you use power. Available across NSW, VIC, QLD and SA, Diamond supports everyday living with practical payment options (BPAY, card, direct debit) and helpful online tools, while its strong renewable generation focus means your electricity is backed by cleaner energy—making it a smart pick for Australians who want sustainability and straightforward service in one.

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