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Diamond Energy logo
Provider overview

Diamond Energy

Diamond Energy is one of the leading renewable energy retailers in Australia, consistently ranked as one of the country's greenest energy companies. It generates its own power from solar, wind, bio-energy and wave sources, and rewards solar households with strong feed-in tariffs. Read on to decide whether Diamond Energy is the right fit for your home.

#2

greenest in AU

83%

satisfaction

4 states

NSW · VIC · QLD · SA

Own

renewable generation

Where it operates

Where does Diamond operate?

State Electricity Gas
New South Wales
Victoria
Queensland
South Australia
ACT
Western Australia
Tasmania

Plans & rates

Diamond electricity plans & rates

Plans differ by state and billing method. Every retailer must publish a Default Market Offer (the government reference price), and Diamond's market offers are set as a discount off that benchmark.

Diamond Energy logo

Last updated 11/07/2026

9

plans available

5 residential · 4 business

16.3c

cheapest usage rate / kWh

avg 18.14c across plans

0c

cheapest daily supply

4

states covered

NSW, VIC, QLD, SA

Diamond Energy logo
Residential Variable

Diamond Everyday

From

16.3c /kWh

Supply

0c /day

In
SA NSW QLD VIC

South Australia

SA Power Networks

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 20.6c/kWh
Off-peak unit price 32.54c/kWh
Peak unit price 48.74c/kWh
Daily supply 151.13c/day

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 20.9c/kWh
Usage rate 43.02c/kWh
Daily supply 84.45c/day

Time of Use

Off-peak unit price 32.54c/kWh
Peak unit price 48.74c/kWh
Daily supply 151.13c/day

Single Rate

Usage rate 43.02c/kWh
Daily supply 84.45c/day

New South Wales

Endeavour

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load daily supply charge 2 0c/day
Controlled load unit price 1 21.49c/kWh
Controlled load unit price 2 21.49c/kWh
Off-peak unit price 29.94c/kWh
Shoulder unit price 30.15c/kWh
Peak unit price 47.6c/kWh
Daily supply 122c/day

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load daily supply charge 2 0c/day
Controlled load unit price 1 21.49c/kWh
Controlled load unit price 2 21.49c/kWh
Usage rate 36.68c/kWh
Daily supply 90.05c/day

Time of Use

Off-peak unit price 29.94c/kWh
Shoulder unit price 30.15c/kWh
Peak unit price 47.6c/kWh
Daily supply 122c/day

Single Rate

Usage rate 36.68c/kWh
Daily supply 90.05c/day

Ausgrid

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load daily supply charge 2 0c/day
Controlled load unit price 1 16.3c/kWh
Controlled load unit price 2 16.3c/kWh
Usage rate 37.6c/kWh
Daily supply 73c/day

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load daily supply charge 2 0c/day
Controlled load unit price 1 16.3c/kWh
Controlled load unit price 2 16.3c/kWh
Shoulder unit price 29.47c/kWh
Off-peak unit price 30c/kWh
Peak unit price 50.55c/kWh
Daily supply 120c/day

Time of Use

Shoulder unit price 29.47c/kWh
Off-peak unit price 30c/kWh
Peak unit price 50.55c/kWh
Daily supply 120c/day

Single Rate

Usage rate 37.6c/kWh
Daily supply 73c/day

Essential Energy Far West

Time of Use Cont Load

Controlled load daily supply charge 1 7c/day
Controlled load daily supply charge 2 7c/day
Controlled load unit price 1 19.45c/kWh
Controlled load unit price 2 19.45c/kWh
Shoulder unit price 33.85c/kWh
Off-peak unit price 34.35c/kWh
Peak unit price 52.85c/kWh
Daily supply 190c/day

Single Rate Cont Load

Controlled load daily supply charge 1 7c/day
Controlled load daily supply charge 2 7c/day
Controlled load unit price 1 19.45c/kWh
Controlled load unit price 2 19.45c/kWh
Usage rate 40.65c/kWh
Daily supply 149.9c/day

Time of Use

Shoulder unit price 33.85c/kWh
Off-peak unit price 34.35c/kWh
Peak unit price 52.85c/kWh
Daily supply 190c/day

Single Rate

Usage rate 40.65c/kWh
Daily supply 149.9c/day

Queensland

Energex

Time of Use Cont Load

Controlled load daily supply charge 1 0.45c/day
Controlled load daily supply charge 2 0.45c/day
Controlled load unit price 1 16.37c/kWh
Controlled load unit price 2 16.37c/kWh
Shoulder unit price 28.09c/kWh
Off-peak unit price 28.5c/kWh
Peak unit price 54.35c/kWh
Daily supply 105.2c/day

Single Rate Cont Load

Controlled load daily supply charge 1 0.45c/day
Controlled load daily supply charge 2 0.45c/day
Controlled load unit price 1 16.37c/kWh
Controlled load unit price 2 16.37c/kWh
Usage rate 32c/kWh
Daily supply 114.45c/day

Time of Use

Shoulder unit price 28.09c/kWh
Off-peak unit price 28.5c/kWh
Peak unit price 54.35c/kWh
Daily supply 105.2c/day

Single Rate

Usage rate 32c/kWh
Daily supply 114.45c/day

Victoria

Citipower

Single Rate

Usage rate 22.73c/kWh
Daily supply 103.03c/day

United Energy

Single Rate

Usage rate 26c/kWh
Daily supply 96.5c/day

Jemena

Single Rate

Usage rate 26.5c/kWh
Daily supply 105.25c/day

Powercor

Single Rate

Usage rate 27c/kWh
Daily supply 115.55c/day

AusNet Services (electricity)

Single Rate

Usage rate 31.35c/kWh
Daily supply 117.2c/day
Diamond Energy logo
Residential Variable

Diamond Everyday with CL

From

16.78c /kWh

Supply

0c /day

In
VIC

Victoria

Powercor

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 18.71c/kWh
Usage rate 27c/kWh
Daily supply 115.55c/day

United Energy

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 18.58c/kWh
Usage rate 26c/kWh
Daily supply 96.5c/day

Jemena

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 20.41c/kWh
Usage rate 26.5c/kWh
Daily supply 105.25c/day

Citipower

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 16.78c/kWh
Usage rate 22.73c/kWh
Daily supply 103.03c/day

AusNet Services (electricity)

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 21.15c/kWh
Usage rate 31.35c/kWh
Daily supply 117.2c/day
Diamond Energy logo
Residential Variable

Diamond Everyday - T72 CL

From

17.74c /kWh

Supply

0c /day

In
VIC

Victoria

Citipower

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 17.74c/kWh
Off-peak unit price 18.75c/kWh
Peak unit price 33c/kWh
Daily supply 111.05c/day

Powercor

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 18.71c/kWh
Off-peak unit price 21.5c/kWh
Peak unit price 35.75c/kWh
Daily supply 115.5c/day

AusNet Services (electricity)

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 21.15c/kWh
Off-peak unit price 21.81c/kWh
Peak unit price 41.55c/kWh
Daily supply 119c/day

Jemena

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 20.41c/kWh
Off-peak unit price 21c/kWh
Peak unit price 33.9c/kWh
Daily supply 104.95c/day

United Energy

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 18.58c/kWh
Off-peak unit price 20.56c/kWh
Peak unit price 34c/kWh
Daily supply 100c/day
Diamond Energy logo
Residential Variable

Diamond Everyday - T72

From

18.75c /kWh

Supply

100c /day

In
VIC

Victoria

Citipower

Time of Use

Off-peak unit price 18.75c/kWh
Peak unit price 33c/kWh
Daily supply 111.05c/day

United Energy

Time of Use

Off-peak unit price 20.56c/kWh
Peak unit price 34c/kWh
Daily supply 100c/day

Jemena

Time of Use

Off-peak unit price 21c/kWh
Peak unit price 33.9c/kWh
Daily supply 104.95c/day

Powercor

Time of Use

Off-peak unit price 21.5c/kWh
Peak unit price 35.75c/kWh
Daily supply 115.5c/day

AusNet Services (electricity)

Time of Use

Off-peak unit price 21.81c/kWh
Peak unit price 41.55c/kWh
Daily supply 119c/day
Diamond Energy logo
Residential Variable

Diamond Everyday - T73

From

21.32c /kWh

Supply

0c /day

In
SA

South Australia

SA Power Networks

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 21.32c/kWh
Shoulder unit price 24.89c/kWh
Off-peak unit price 36.5c/kWh
Peak unit price 49.5c/kWh
Daily supply 99.45c/day

Time of Use

Shoulder unit price 24.89c/kWh
Off-peak unit price 36.5c/kWh
Peak unit price 49.5c/kWh
Daily supply 99.45c/day
Cheapest
Diamond Energy logo
Business Variable

Diamond Everyday

From

16.3c /kWh

Supply

0c /day

In
SA NSW QLD VIC

South Australia

SA Power Networks

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 20.9c/kWh
Usage rate 45.57c/kWh
Daily supply 90.15c/day

Single Rate

Usage rate 45.57c/kWh
Daily supply 90.15c/day

New South Wales

Ausgrid

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load daily supply charge 2 0c/day
Controlled load unit price 1 16.3c/kWh
Controlled load unit price 2 16.3c/kWh
Off-peak unit price 21.84c/kWh
Shoulder unit price 30.05c/kWh
Peak unit price 59.34c/kWh
Daily supply 245.84c/day

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load daily supply charge 2 0c/day
Controlled load unit price 1 16.3c/kWh
Controlled load unit price 2 16.3c/kWh
Usage rate 37.17c/kWh
Daily supply 184c/day

Time of Use

Off-peak unit price 21.84c/kWh
Shoulder unit price 30.05c/kWh
Peak unit price 59.34c/kWh
Daily supply 245.84c/day

Single Rate

Usage rate 37.17c/kWh
Daily supply 184c/day

Endeavour

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load daily supply charge 2 0c/day
Off-peak unit price 23.42c/kWh
Controlled load unit price 1 26c/kWh
Controlled load unit price 2 26c/kWh
Shoulder unit price 35.87c/kWh
Peak unit price 49.18c/kWh
Daily supply 149.4c/day

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load daily supply charge 2 0c/day
Controlled load unit price 1 21.49c/kWh
Controlled load unit price 2 21.49c/kWh
Usage rate 37.8c/kWh
Daily supply 118c/day

Time of Use

Off-peak unit price 23.42c/kWh
Shoulder unit price 35.87c/kWh
Peak unit price 49.18c/kWh
Daily supply 149.4c/day

Single Rate

Usage rate 37.8c/kWh
Daily supply 118c/day

Essential Energy Far West

Time of Use Cont Load

Controlled load daily supply charge 1 6c/day
Controlled load daily supply charge 2 6c/day
Controlled load unit price 1 18.7c/kWh
Controlled load unit price 2 18.7c/kWh
Off-peak unit price 27.58c/kWh
Shoulder unit price 41.4c/kWh
Peak unit price 44.23c/kWh
Daily supply 887.4c/day

Single Rate Cont Load

Controlled load daily supply charge 1 7c/day
Controlled load daily supply charge 2 7c/day
Controlled load unit price 1 19.45c/kWh
Controlled load unit price 2 19.45c/kWh
Usage rate 48.32c/kWh
Daily supply 179.3c/day

Time of Use

Off-peak unit price 27.58c/kWh
Shoulder unit price 41.4c/kWh
Peak unit price 44.23c/kWh
Daily supply 887.4c/day

Single Rate

Usage rate 48.32c/kWh
Daily supply 179.3c/day

Queensland

Energex

Time of Use Cont Load

Controlled load daily supply charge 1 0.45c/day
Controlled load daily supply charge 2 0.45c/day
Controlled load unit price 1 16.37c/kWh
Controlled load unit price 2 16.37c/kWh
Off-peak unit price 26.96c/kWh
Peak unit price 34.39c/kWh
Daily supply 179.88c/day

Single Rate Cont Load

Controlled load daily supply charge 1 0.45c/day
Controlled load daily supply charge 2 0.45c/day
Controlled load unit price 1 16.37c/kWh
Controlled load unit price 2 16.37c/kWh
Usage rate 33.32c/kWh
Daily supply 124.5c/day

Time of Use

Off-peak unit price 26.96c/kWh
Peak unit price 34.39c/kWh
Daily supply 179.88c/day

Single Rate

Usage rate 33.32c/kWh
Daily supply 124.5c/day

Victoria

Citipower

Single Rate

Usage rate 23.91c/kWh
Daily supply 126.19c/day

United Energy

Single Rate

Usage rate 25.18c/kWh
Daily supply 117.06c/day

Powercor

Single Rate

Usage rate 26.6c/kWh
Daily supply 131.57c/day

Jemena

Single Rate

Usage rate 28.12c/kWh
Daily supply 141.79c/day

AusNet Services (electricity)

Single Rate

Usage rate 34.75c/kWh
Daily supply 126.67c/day
Diamond Energy logo
Business Variable

Diamond Everyday - T52

From

17.44c /kWh

Supply

0c /day

In
SA VIC

South Australia

SA Power Networks

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 20.9c/kWh
Off-peak unit price 32.46c/kWh
Peak unit price 49.97c/kWh
Daily supply 128.07c/day

Time of Use

Off-peak unit price 32.46c/kWh
Peak unit price 49.97c/kWh
Daily supply 128.07c/day

Victoria

Citipower

Time of Use

Off-peak unit price 17.44c/kWh
Peak unit price 29.6c/kWh
Daily supply 129.53c/day

Jemena

Time of Use

Off-peak unit price 18.15c/kWh
Peak unit price 32.05c/kWh
Daily supply 149.74c/day

United Energy

Time of Use

Off-peak unit price 18.15c/kWh
Peak unit price 31.35c/kWh
Daily supply 122.72c/day

Powercor

Time of Use

Off-peak unit price 18.9c/kWh
Peak unit price 34.88c/kWh
Daily supply 142.42c/day

AusNet Services (electricity)

Time of Use

Off-peak unit price 19.68c/kWh
Peak unit price 36.1c/kWh
Daily supply 126.67c/day
Diamond Energy logo
Business Variable

Diamond Everyday with CL

From

17.74c /kWh

Supply

0c /day

In
VIC

Victoria

United Energy

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 18.58c/kWh
Usage rate 25.18c/kWh
Daily supply 117.06c/day

AusNet Services (electricity)

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 21.15c/kWh
Usage rate 34.75c/kWh
Daily supply 126.67c/day

Citipower

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 17.74c/kWh
Usage rate 23.91c/kWh
Daily supply 126.19c/day

Jemena

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 20.41c/kWh
Usage rate 28.12c/kWh
Daily supply 141.79c/day

Powercor

Single Rate Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 18.71c/kWh
Usage rate 26.6c/kWh
Daily supply 131.57c/day
Diamond Energy logo
Business Variable

Diamond Everyday - T73

From

20.9c /kWh

Supply

0c /day

In
SA

South Australia

SA Power Networks

Time of Use Cont Load

Controlled load daily supply charge 1 0c/day
Controlled load unit price 1 20.9c/kWh
Off-peak unit price 41.89c/kWh
Shoulder unit price 52.23c/kWh
Peak unit price 72c/kWh
Daily supply 145.31c/day

Time of Use

Off-peak unit price 41.89c/kWh
Shoulder unit price 52.23c/kWh
Peak unit price 72c/kWh
Daily supply 145.31c/day

The numbers that decide your Diamond Energy bill

Usage rate (c / kWh)

What you pay for every unit of electricity you use. The single biggest driver of your bill if you use a lot of power.

Daily supply charge (c / day)

A fixed fee you pay every day just to be connected, regardless of how much energy you use. It adds up across the year.

Peak vs off-peak

Time-of-use plans charge more at peak times and less off-peak. They suit homes that can shift usage to evenings, nights or weekends.

Live Diamond Energy electricity rates pulled from the energy market, last updated 11/07/2026. Figures are in cents, shown as the range across each network for residential and business plans; your exact rate depends on your address, network, meter type and usage. Open each plan's price breakdown for the full per-network detail. Always confirm the plan's Basic Plan Information document and compare against the reference price before signing up.

All Diamond plans

Everyday Renewable Saver

No lock-in

Diamond's single residential plan, with zero lock-in contract and no exit fees. Available on single-rate or time-of-use tariffs with optional controlled load. Conditional discounts range from 3% to over 13% off the reference price.

Single rate tariff

A flat rate no matter the day or time, for predictable, simple billing.

Time of Use

Rates that change with the time of day, rewarding usage outside peak demand hours.

Controlled Load 1 & 2

Optional lower rates for energy-heavy appliances running on a separate meter.

Rates change often. Published rates date quickly. Compare Diamond against the retailers that supply your address for current pricing.

Solar

Diamond solar: feed-in tariffs & batteries

Diamond offers some of the most attractive green and solar options in the market. The standard solar feed-in tariff pays 7c/kWh for energy exported from your panels, which sits above the market offer in many areas. GridCredits100 lets homes with a solar battery sell electricity back to Diamond at up to $1/kWh when grid demand is very high. Diamond Pure Plus adds 100% accredited GreenPower for an extra 5.5c/kWh, or 50% GreenPower for an extra 2.75c/kWh; it is optional and can be added or removed at any time. Diamond does not sell panels directly but works with third-party retailers to supply solar to Australian homes.

Climate record

How green is Diamond?

Diamond Energy is one of Australia's greenest retailers, consistently ranked among the greenest energy companies in the country. It generates its own power from solar, wind, bio-energy and wave sources, and offers 50% and 100% accredited GreenPower through Diamond Pure Plus alongside competitive solar feed-in tariffs.

100% GreenPower (Diamond Pure Plus)

2.55/5

Selectra customer reviews

542 reviews

3.9/5

ProductReview

4.1/5

Google

What customers say about Diamond

Across ProductReview, Google and a 76% CHOICE score, satisfaction works out to roughly 83%. Reviewers praise the customer-first approach, the ease of doing business and the strong solar discounts. The most common complaint is the optional Diamond Pure Plus GreenPower charge, which some did not realise was optional.

Read our full Diamond Energy review →

Common questions

Diamond: your questions answered

Diamond Energy is a leading renewable energy retailer in Australia, operating in NSW, Victoria, Queensland and South Australia. It generates its own power from solar, wind, bio-energy and wave sources, and offers green plans with high solar feed-in tariffs and GreenPower options.

Diamond offers one main residential plan, the Everyday Renewable Saver, available on single-rate or time-of-use tariffs with optional controlled load. It has zero lock-in contracts and no exit fees.

Yes. Diamond offers 50% and 100% GreenPower accredited options through Diamond Pure Plus, competitive solar feed-in tariffs, and the GridCredits100 plan that lets solar-battery owners sell excess energy back to the grid at premium rates.

Rates vary by state and distributor. Discounts range from 3% to over 13% off the reference price when conditions such as paying on time and using direct debit are met. See current pricing on Diamond's own basic plan information documents before you sign up.

Customers rate Diamond highly for friendly service and its green focus, with overall satisfaction estimated around 83%. The most common concern is the optional Diamond Pure Plus GreenPower charge, which some customers did not realise was optional.

Call 1300 838 009 Monday to Friday 8:30am to 6:00pm (AEDT), or email [email protected]. The postal address is Level 11, 480 Swan Street, Richmond VIC 3121. See the contact page for accessibility and interpreter services.

Yes. You can switch or move online via Diamond's Switch4Good page. Notify them at least three business days before moving. A 10-business-day cooling-off period applies after you sign up, during which you can cancel without penalty.

Is Diamond the cheapest for your home?

Diamond is one option, but not always the cheapest. Compare it against other retailers that supply your address to find the plan that fits how you use energy.