Corona Energy
The UK's largest independent business gas supplier
Our independent review of Corona Energy — the Macquarie-backed specialist supplying 14% of the UK's industrial and commercial gas market. We cover their fixed and flexible tariffs, ECOrona 100% renewable options, dedicated account managers, and help you decide if they're right for your business.
Independent B2B Supplier • Macquarie Group
Smart Energy Company works with Corona Energy as a partner supplier. This is an honest review to help UK businesses make informed decisions. We may earn a commission if you switch through us. Last updated: December 2025
What Sets Corona Energy Apart?
The UK's largest independent B2B energy supplier with 25+ years of experience
Largest Independent
14% of UK's I&C gas market — 17,000 customers and 84,000+ meters under management
UK-Based Support
Entire customer service team in Watford — phone and live chat, no overseas call centres
4.4★ Trustpilot
76% 5-star reviews from 2,256 customers — staff frequently praised by name
ECOrona Green
100% renewable electricity option with 0g CO₂/kWh — genuine zero-carbon tariff
Want the full picture? Keep reading below, or skip ahead.
About Corona Energy
Corona Energy is the UK's largest independent business gas supplier, commanding 14% of the industrial and commercial gas market. Founded in 1993, they've grown from a small independent to a major player serving over 17,000 business customers across 84,000+ meter points.
Since 2006, Corona has been owned by Macquarie Group, the Australian infrastructure giant. This backing provides serious financial stability — important in an energy market where supplier failures have become common. They're headquartered in Watford and hold Investors in People Gold accreditation.
"Corona Energy is ideal for gas-heavy businesses who want a dedicated account manager and the security of a well-capitalised supplier — plus genuine green gas options that most competitors can't match."
What sets Corona apart is their dedicated account manager model — every customer gets a named contact rather than a call centre. They also offer one of the few genuine 100% green gas products on the market, backed by Renewable Gas Guarantees of Origin (RGGOs) from biomethane sources.
The myCorona online portal gives 24/7 access to billing, meter readings, and account management. For larger customers, they provide automatic meter reading (AMR) data and sophisticated energy management reporting.
Company Details
Products & Tariffs
Corona Energy offers fixed, flexible, and green gas products — plus electricity for dual fuel customers. Here's what's available.
Fixed Rate
Most PopularLock in your unit rate for 12, 24, or 36 months. Ideal for businesses wanting predictable energy costs regardless of market movements.
- Fixed unit rate for contract term
- 12, 24, or 36 month options
- Dedicated account manager included
Flexible
Market TrackingFor businesses using 1GWh+ who want to purchase energy in tranches, tracking wholesale market movements rather than fixing everything upfront.
- Wholesale market access
- Purchase in tranches over time
- Sophisticated risk management
ECOrona Green
100% Renewable100% renewable electricity backed by REGO certificates. Zero carbon at point of generation — ideal for sustainability reporting and net zero targets.
- 100% REGO-backed renewable
- 0g CO₂/kWh at generation
- Certificate documentation included
Green Gas
100% BiomethaneOne of the few UK suppliers offering genuine 100% green gas backed by RGGOs (Renewable Gas Guarantees of Origin) from biomethane sources.
- 100% RGGO-backed biomethane
- Genuine carbon neutral gas
- Scope 1 emissions reduction
myCorona Portal
Included FreeAll customers get access to the myCorona online portal. View bills, submit meter readings, track consumption, and manage your account around the clock.
- 24/7 account access
- Online meter submissions
- AMR data for larger sites
Gas Specialists First
Corona Energy's heritage is in gas — they supply 14% of the UK's I&C gas market. They also offer electricity for dual fuel customers, but gas remains their core expertise.
Contract terms typically 12-36 months. Flexible products available for larger energy users (1GWh+).
Is Corona Energy Right for You?
An honest look at who Corona suits best — and when another supplier might be better.
Good fit if...
- Your business is gas-heavy and you want a specialist, not a generalist
- You value a dedicated account manager over a call centre
- You have multiple sites and need consolidated portfolio management
- Genuine green gas (RGGO-backed biomethane) matters for your ESG goals
- You're a public sector body, corporate, or SME wanting stability
- Financial security matters — Macquarie backing provides peace of mind
Compare alternatives if...
- You only need electricity — Corona's heritage is gas, others specialise in power
- You want to pick up the phone and get a quick fix without account manager escalation
- You're going through a complex change of tenancy — reviews mention documentation frustrations
- You want upfront online pricing without needing a quote
- You're a very low consumption micro-business — Corona targets SME and above
- Complex rebilling situations frustrate you — some reviews mention issues here
Our view: Corona Energy is excellent for gas-heavy businesses who want dedicated account management and genuine green gas options. If you're electricity-only or need instant phone support, look elsewhere.
Green Credentials
Corona Energy offers genuine green options for both electricity (REGO-backed) and gas (RGGO-backed biomethane) — one of few UK suppliers with true green gas
ECOrona Electricity
100% RenewableECOrona Green electricity is 100% renewable, backed by REGO certificates. Zero carbon at point of generation — ideal for Scope 2 emissions reporting and net zero commitments.
Green Gas
100% BiomethaneOne of few UK suppliers offering genuine 100% green gas backed by Renewable Gas Guarantees of Origin (RGGOs) from biomethane. Counts towards Scope 1 emissions reduction.
Green Product Options
| Product | Corona Energy |
|---|---|
| ECOrona Green Electricity | 100% Renewable (REGO) |
| Standard Electricity | UK Grid Average Mix |
| Green Gas | 100% Biomethane (RGGO) |
| Standard Gas | Natural Gas |
| Certificate Documentation | Included |
| ESG Reporting Support | Available |
Green products available on request — contact for pricing
Corona is one of few UK suppliers offering genuine RGGO-backed green gas
Weekly Energy Market Recaps
Stay on top of weekly market trends
Get a comprehensive 5–7 day breakdown of UK gas and electricity market movements, price trends, and what it means for your renewal strategy. Updated every Friday with forward contract analysis and expert forecasting.
Latest Insights on Corona Energy
See our latest blogs on Corona Energyto keep in the know and up to date!
Contact Corona Energy
How to reach their customer service team directly
customerservice@
coronaenergy.co.uk
General enquiries
Online Portal
myCorona
24/7 account access
Our honest take on support
Corona Energy has a 4.4/5 Trustpilot rating from 2,100+ reviews — solid for a business energy supplier. Positive reviews frequently praise individual staff members by name (Laine, Britney, and others consistently mentioned) and the dedicated account manager model. However, some reviews mention frustrations with the myCorona portal security processes, complex change of tenancy documentation requirements, and occasional rebilling issues. Overall, the dedicated account manager approach means you get personalised service rather than a call centre lottery.
What Customers Say
"I rarely write reviews, but the outstanding support I received from Britney at Corona Energy deserves recognition. From the very first interaction, Britney was professional, knowledgeable, and genuine."
— Verified Customer"The most amazing customer service from Laine. A complex issue which she sorted in one call with no delay or call back required. Excellent service and very much appreciated. Thank you Laine - what a star!"
— Verified Customer"Corona from a business point of view are the only supplier I would deal with in regards to Gas. Their website is streets ahead of other energy suppliers and their key account manager is very helpful."
— Terry Stewart"Dominic was very polite and very helpful and solved my problem very quickly. Refreshing to have a cheerful person on the other end of the phone."
— Verified Customer"Great energy supplier, really good customer service. I used the online chat which really did help. Would recommend using the company for all your energy needs."
— Tracey"This review is about Corona's online portal. The portal is quite frankly pretty useless. The only thing it is good for is getting a copy of your bill. Mia was really helpful when I did get onto the chat though."
— Simon Beasley"I spoke with Amreen, she helped me get onboard the MyCorona portal after taking on a new role within our business. She was patient, knowledgeable and a pleasure to speak to. Well done Amreen and Corona."
— Julian"Phone was answered promptly and with friendly manner. Found the answers to everything I needed and invoices were emailed straight away, great service thank you."
— HilaryNote: These are real reviews from Corona Energy's Trustpilot page. With 4.4/5 stars from 2,100+ reviews, Corona has solid ratings for a business energy supplier. Positive reviews consistently praise named staff members (Britney, Laine, Dominic, Amreen) and the dedicated account manager model. Some reviews mention portal frustrations and change of tenancy complexities. Last verified December 2025.
Our Verdict
The UK's gas specialist with genuine green options and dedicated account management
Corona Energy is the UK's largest independent business gas supplier, commanding 14% of the industrial and commercial gas market. Their Macquarie Group backing provides serious financial stability in a market where supplier failures have become common. What sets them apart is one of the few genuine 100% green gas options in the UK, backed by RGGOs (not just carbon offsets). The dedicated account manager model means you get a named contact rather than call centre roulette — staff like Britney, Laine, and Dominic are consistently praised in reviews. The trade-off? Their heritage is gas, so electricity-only customers might find specialists elsewhere. Some reviews mention portal security frustrations and complex change of tenancy processes. But for gas-heavy businesses wanting personalised service and genuine green credentials, Corona is a strong choice.
✓ Strengths
- 14% I&C gas market share — genuine specialists
- Dedicated account manager, not call centre
- 100% RGGO-backed green gas available
- Macquarie Group financial backing
- Multi-site portfolio management
- 4.4/5 Trustpilot with named staff praise
✗ Limitations
- Gas heritage — electricity specialists elsewhere
- No published online pricing
- Change of tenancy can be complex
- Portal security processes frustrate some
- Primarily SME/corporate focus
Best For
Gas-heavy businesses who want a dedicated account manager, multi-site portfolio management, genuine green gas options (RGGO-backed), and the financial security of a Macquarie-backed supplier. Ideal for SMEs, corporates, and public sector organisations.
Frequently Asked Questions
Common questions about Corona Energy
Corona Energy is owned by Macquarie Group, the Australian infrastructure and investment giant, who acquired the company in 2006. This backing provides serious financial stability — important in an industry where supplier failures have become common. Corona was originally founded in 1993 and is headquartered in Watford, Hertfordshire.
Corona Energy supplies both gas and electricity to business customers. However, their heritage and market strength is in gas — they hold 14% of the UK's industrial and commercial gas market, making them the largest independent supplier in that sector. They offer dual fuel contracts, but if electricity is your primary need, you might find specialists with more competitive rates.
Corona offers genuine 100% green gas backed by RGGOs (Renewable Gas Guarantees of Origin). This is biomethane injected into the grid from sources like food waste and agricultural residues. It's one of the few properly certified green gas options in the UK market — not just carbon offsetting. For electricity, their ECOrona product offers 100% REGO-backed renewable electricity.
Yes — this is one of Corona's key differentiators. Every customer gets a named, dedicated account manager who stays with you throughout your contract. You're not passed around call centres or constantly re-explaining your business to different people. Staff like Britney, Laine, and Dominic are consistently praised by name in customer reviews.
Corona Energy offers fixed-rate contracts from 12 to 36 months. For larger corporate customers, they also offer flexible procurement options that allow you to buy energy in tranches to manage price risk. Contract terms depend on your usage profile and requirements — through Smart Energy, we can negotiate the best terms for your specific situation.
If you don't renew before your contract ends, you'll roll onto Corona's out-of-contract (deemed) rates — which are significantly higher than fixed contract rates. Most businesses save 15-30% by securing a new fixed rate before expiry. Using a broker like Smart Energy means we track your renewal dates and contact you in advance — so you never accidentally end up overpaying on expensive deemed rates.
Request a quote through Smart Energy and we'll compare Corona's rates against 28+ other suppliers for your specific usage. If they're competitive, we handle the entire switching process — you just sign the contract. We'll also be your ongoing point of contact, tracking renewals and helping resolve any issues. There's no charge for our service; we're paid by the supplier.
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Corona Energy vs Market Comparison
We'll show you exactly how Corona compares on price against 28+ other UK suppliers.
Genuine Green Gas Option
Corona offers 100% RGGO-backed green gas — one of the few genuine options in the UK market.
Dedicated Account Manager
Corona gives you a named contact who stays with you — no call centre roulette.
Multi-Site Portfolio Management
Corona specialises in managing energy across multiple business locations.
11+ years helping UK businesses. See our reviews →
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