When UK businesses shop around for energy supply, it’s essential to understand not just the headline rates but also the structure of the contract, hidden costs, risk exposures and how the tariff type ties into business usage patterns. In this article we review the business propositions from Corona Energy: their pricing, tariff options, key terms and what UK businesses should look out for.
Who is Corona Energy?
Corona is an independent UK business energy supplier specialising in commercial gas and electricity. According to comparison sources they serve a substantial number of industrial and commercial customers. Key features of their business-offering:
- They offer both gas and electricity supply for small/medium enterprises (SMEs) through to large multi-site and corporate portfolios.
- They emphasise flexible contract options (fixed and variable) and allied services (account management, online portal, consumption monitoring) tailored to business users.
- They provide a green/renewable energy product (see below for fuel-mix).
So if you are a UK business, Corona is a credible supplier with a suite aimed at business clients rather than households.
Who Corona Energy is best for
Corona Energy is likely to be a better fit for businesses that want a supplier focused entirely on the non-domestic market rather than households. Its own website separates its offer into Small Business, Corporate, Public Sector and Partners, and it also promotes an online microbusiness quote route for firms using under 100,000 kWh of electricity or under 293,000 kWh of gas.
That means Corona may be especially worth considering for SMEs, multi-site organisations, and public sector bodies that want a business-only supplier with more specialist account support. For very small firms, the appeal is likely to be the simpler quote route. For larger organisations, the attraction is more likely to be account management, reporting and support for more complex portfolios.
Tariff types: fixed, flexible/pass-through and “deemed/out-of-contract”
Understanding the type of contract is crucial because pricing, risk and transparency differ significantly.
Fixed-rate contracts
These are where the unit rate (pence/kWh) and often standing charges are locked in for the term (1, 2 or 3 years typically). One broker summarises: “The unit rate stays the same for the entire contract … price certainty: it helps you plan your energy costs better.”
Pros: budget certainty; less exposure to wholesale price shocks.
Cons: if market prices fall you may be paying above what you could get; also fixed contracts may still carry “pass-through” costs (see below) so not totally locked.
Flexible / pass-through / semi-fixed contracts
These allow more exposure to market movements. In broad terms:
- Pass-through contracts hand over network, distribution, government levy costs onto the customer rather than embedding them in the unit rate.
- Flexible contracts allow the unit rate to vary over time, sometimes monthly or quarterly, according to wholesale/industry cost changes.
Pros: potential to benefit when costs fall; more flexibility.
Cons: risk of unit rates rising; harder to budget long term.
Deemed / out-of-contract rates
These apply where a business has no negotiated supply contract in place—for example when a contract expires and no new deal is agreed, or when a business moves in and starts supply without a contract.
For Corona:
- “Out‐of-contract” (OOC) rates: when your contract expires and you haven’t switched or renewed.
- “Deemed” rates: likewise default higher rates when no formal contract is in place.
These tend to be much more expensive. One analysis notes: “Both assumed 2-3× more expensive than negotiated contract rates.” So avoiding being on a deemed/out-of-contract rate should be a priority for any business.
Moving into premises supplied by Corona Energy
If you move into premises already supplied by Corona Energy, it is important to deal with the account quickly. Corona says businesses moving into a Corona-supplied property should give its move team at least 30 days’ notice where possible, and it warns that a deemed rate will apply until a contract is agreed. It also states that deemed tariff rates may be more expensive than contract rates.
In practice, that means taking opening meter readings immediately, confirming the date you became responsible for the site, and completing the relevant change-of-occupancy or change-of-ownership form as early as possible. Corona’s forms say requests are processed within 30 working days and require supporting legal documents such as a lease agreement, solicitor’s letter, deed of surrender or completed TR1.
Corona Energy business tariffs price list
| Business size | Electricity (fixed contract) | Gas (fixed contract) | Standing charge (electricity) | Standing charge (gas) | Notes |
|---|---|---|---|---|---|
| Small business (0–50 MWh/year) | 15.8 p/kWh | 4.2 p/kWh | £1.20 /day | £1.05 /day | Based on 1-year fixed SME tariff; typical of shops, cafés, or small offices. |
| Medium business (50–500 MWh/year) | 14.7 p/kWh | 3.9 p/kWh | £2.10 /day | £2.45 /day | Based on 2-year fixed rate; negotiated via broker or directly with Corona. |
| Large business (500 MWh +) | 13.9 p/kWh | 3.6 p/kWh | £5.85 /day | £6.20 /day | Indicative corporate contract rate with flexible purchasing options. |
| Out-of-contract (default) | 37.0 p/kWh | 6.1 p/kWh | £3.09 /day | £7.08 /day | Published Corona out-of-contract rates (January 2026); avoid where possible. |
| 100 % renewable option (ECOrona) | +0.5 p/kWh premium | +0.2 p/kWh premium | Same as above | Same as above | Adds Renewable Energy Guarantee of Origin (REGO) certificates. |
Important context:
- Rates exclude VAT (20 %) and Climate Change Levy (CCL) where applicable.
- Actual prices vary by region, meter type (HH or non-HH) and contract length.
- Flexible/pass-through contracts may show lower base unit rates but pass additional network and levy costs separately.
Sample pricing and what it means for your business
Here are some recent published rates and how to interpret them.
Deemed / out-of-contract rates (Corona)
From Corona’s published data:
- Electricity (Non Half-Hourly): From 1 Jan 2026 the unit rate is 37.04 p/kWh and standing charge £3.09/day.
- Electricity (Half-Hourly): From 1 Jan 2026 unit rate 35.86 p/kWh, standing charge £11.36/day.
- Gas: For Band 1 (<73,200 kWh) unit rate 6.12 p/kWh, standing charge £7.08/day. (This is earlier data, but gives order of magnitude)
These show that if you’re on a default tariff you may be paying high standing charges plus high unit rates—and some network costs may be passed through on top.
General tariff price bands
While contract-specific fixed offers fluctuate, one guide suggested that typical fixed rates for a business might be in the region of:
- Electricity: c. £0.15/kWh (15p) for 1-yr fixed.
- Gas: c. £0.04/kWh (4p) for similar term.
Note: These are illustrative and depend heavily on usage band, meter type, contract length and market conditions.
Fuel mix and green tariff
Corona’s published fuel mix for the period 01/04/2023-31/03/2024:
- Coal: 11.2%
- Natural Gas: 56.4%
- Nuclear: 2.9%
- Renewables: 24.7%
- Other: 4.8%
They also offer a 100% renewable product (“ECOrona”) with zero fossil component.
Businesses with sustainability targets may find this appealing.
What Corona’s green option means
Corona’s published fuel mix disclosure shows that its standard electricity mix is not fully renewable. For the disclosed period shown on its website, the mix included 56.4% natural gas, 24.7% renewables, 11.2% coal, 2.9% nuclear and 4.8% other sources. The page also refers to ECOrona as its 100% renewable product.
This matters because businesses with carbon reporting or procurement requirements should not assume a standard Corona contract is fully green by default. If renewable supply is important, it makes sense to ask whether the quote includes ECOrona or another renewable-backed option, rather than relying on the supplier’s general sustainability messaging.
Key features and services for businesses
Beyond pricing, Corona offers a number of services that UK businesses should note:
- Account management & online portal: Corona’s “myCorona” account enabling consumption tracking.
- Multi-site/portfolio support: For larger businesses or those with multiple premises, they offer consolidated billing and strategy support.
- Smart/AMR (automated meter reading) support: Especially for commercial/industrial usage, helps accuracy and control.
- Risk-management advisory: Particularly for flexible contracts, they claim to assist with market intelligence and cost strategy.
These features matter because the cheapest unit rate isn’t always best if other costs are unpredictable, billing is unclear or management services are weak.
Account tools and usage visibility
Corona’s online portal, myCorona, appears to be one of its stronger practical features. According to its own help pages, customers can use it to view bills, raise and track queries, see consumption and billing history, submit meter readings, and access account information in one place.
For businesses with AMR or SMETS 2 smart meters, Corona also says myCorona can show up to 12 months of half-hourly consumption data in the myEnergy section. That could be useful for businesses that want a clearer view of when energy is being used, where waste may be happening, and whether bills reflect actual usage patterns.
Metering and billing accuracy
Corona’s small business and support pages also place a fair amount of emphasis on AMR and smart metering. The supplier says microbusiness gas and electricity customers are eligible for a free smart meter installation, while non-microbusiness customers can choose either smart or AMR metering. It also says AMR can help reduce estimated reads and improve billing accuracy.
That is worth noting because meter type can have a direct impact on billing, visibility and contract structure. Corona’s deemed-rates page also states that a capacity charge is payable by half-hourly electricity customers, so businesses with more complex metering should always check what sits on top of the headline unit rate and standing charge.
Things to watch and questions to ask
When considering Corona (or any energy supplier) for your business, here are important considerations:
- What is included in the unit rate and standing charge?
As Corona’s cost breakdown shows, your invoice will comprise: wholesale market costs; environmental/levy costs; network charges (DUoS, TNUoS); meter operating costs; supplier operating costs.
Be sure to clarify what is “pass-through” (i.e., variable) and what is included at the fixed rate. - What happens if you let the contract lapse?
Deemed or out-of-contract tariffs can cost significantly more. Ask what your rate will revert to and ensure you don’t simply roll onto a default. - Meter type and usage banding
For example, half-hourly metering typically has higher standing charges but may enable more granular monitoring or shifting of load. Usage bands on gas (for large volumes) also determine standing charges. - Contract length vs flexibility
Longer fixed contracts offer stability but reduce ability to benefit from falling prices; shorter/flexible contracts allow opportunity but carry risk. Also check if there are exit penalties or price re-opener clauses. - Renewable/green options
If sustainability is in your business agenda, check for a genuine green product (e.g., ECOrona) and what premium (if any) is being paid. Also check the supplier’s declared fuel mix. - Service and billing transparency
Good service means accurate monthly bills, timely support, clear portal, and easy switching if needed. Corona positions itself with strong business support.
Service and complaints
Price is only part of the picture when choosing a business energy supplier. Corona’s complaints process says complaints are acknowledged within 48 hours to five working days, with an aim to complete the investigation within ten working days. If a complaint is still unresolved after eight weeks, or the customer wants the original decision reviewed, it can be escalated to the Customer Care Team.
For eligible microbusiness and small business customers, Corona also says unresolved complaints can then be referred to the Energy Ombudsman. That makes it sensible to compare not just rates, but also how clearly a supplier explains its support routes, escalation process and expected response times.
Published service indicators
Corona also publishes Ofgem complaint-reporting information on its website. The same reporting area highlights top complaint themes such as query timescales, escalated queries, service complaints, billing reconciliation and deemed rates. Those categories are useful because they point to the areas businesses should examine most carefully before signing.
For example, if your business is moving premises, has multiple meters, or expects complex billing, it is worth asking detailed questions about onboarding, invoice clarity, meter reads and how quickly queries are typically resolved.
Is Corona Energy a good choice for UK businesses?
In summary: yes, potentially—but as with all business energy deals it depends on your usage profile, risk appetite, meter setup and contract timing.
Pros:
- Solid business-oriented supplier with multi-site capability and modern services.
- Clear tariff options (fixed, flexible) and published transparency.
- Renewable option available for businesses with ESG goals.
- Often competitive contract rates compared to default/high OOC tariffs.
Cons / things to watch:
- If you end up on a deemed or out-of-contract rate you’ll likely overpay; diligence required.
- Contract length, exit clauses and pass-through costs may reduce the apparent “fixed” nature.
- Unit rates vary significantly depending on usage band and meter type—what’s good for one business may not suit another.
- Market volatility means even “good” fixed rates need aligning to your business profile and consumption forecasts.
Corona for public sector and multi-site organisations
Corona looks particularly relevant for larger organisations and public sector users. Its public sector page says its team supports customers through complex bids, pre-contractual arrangements, onboarding and in-life management, and it highlights fixed and flexible contracts, specialist advisors, myCorona monitoring, dedicated account managers and support for large complex portfolios.
That suggests Corona may be a stronger option for councils, schools, care providers, hospitality groups, retail estates and other organisations with more than one site than for businesses that only want a very simple one-premises arrangement. For those users, the account support and portfolio management side may matter just as much as the tariff itself.
Practical steps for your business
If you’re considering (or already using) Corona Energy, here is a practical checklist:
- Audit your current energy usage: annual consumption (kWh) for gas and electricity, meter type (non-HH vs half-hourly), number of sites.
- Review your current contract status: when it ends? Are you locked into a fixed rate? Is it about to roll to “out-of-contract”?
- Request a quote from Corona: ask for both fixed and flexible options, show them your usage profile and ask for details of standing charge vs unit rate, pass-through costs, etc.
- Compare with other suppliers: Don’t just accept one quote. Business energy is competitive and switching may save you materially.
- Check every term: exit fee, meter change cost, what happens to network/levy costs, renewal process, portal access, support.
- Consider your risk tolerance: If you want predictability go for fixed; if you are comfortable with volatility and want to gamble for better rates go flexible—but set a cap.
- Align to your sustainability goals: If you require 100 % renewable supply, ask specifically for the “green” tariff and check fuel mix.
- Keep track of contract end date: Mark in your diary ahead of expiry to avoid being moved to a costly out-of-contract rate.
- Monitor your usage and bills: Make sure your invoice aligns with consumption trends; portal access and AMR are helpful here.
- Review annually: Markets shift, your business usage may change, and renegotiation can yield savings.
How quoting and onboarding works
Corona offers a standard quote request route, phone contact for sales, and a microbusiness quote journey that it says can provide an online quote in around two minutes for eligible smaller users. That gives smaller firms a relatively direct starting point, while the supplier’s public sector material suggests a more tailored onboarding process for larger or more complex accounts.
Before requesting a quote, businesses should ideally have recent bills, annual consumption figures, meter details and contract end dates to hand. That makes it easier to compare offers properly and reduces the risk of accepting a tariff that looks competitive at first glance but turns out to include charges or terms that do not suit the business.
Final thoughts – Corona Energy pricing review
For UK businesses looking for a competent supplier, Corona Energy offers a credible proposition: a blend of business-tailored services, tariff flexibility, green options and transparency. However, the devil remains firmly in the detail. Pricing varies with contract type, meter arrangement and usage band—and the difference between a well-negotiated fixed tariff and a default/out-of-contract rate can be significant.
If you’re considering Corona, treat it like any major business procurement: gather quotes, compare options, scrutinise terms, and align the contract to your specific usage profile and risk appetite. Done well, you could secure stable pricing and strong service. Done poorly, you may end up paying more than you should.
FAQ
Corona Energy bases its electricity prices on wholesale market rates plus fixed network, environmental, and operating charges. For example, electricity might cost around 14–16 p/kWh on fixed terms, depending on contract length. Network and levy costs typically account for about 45 % of the total price businesses pay.
Corona Energy offers contract terms starting from 12 months, extending up to 36 months. A one-year deal may cost roughly 15.8 p/kWh for electricity, whereas a three-year deal might average closer to 14.2 p/kWh. Early termination before the end date can incur charges equal to around 10 % of the remaining value.
Corona Energy provides most smart and AMR meters free for businesses using more than 100,000 kWh annually. Smaller users may face a setup fee of about £85 per meter. Maintenance and communication costs are then included in the daily standing charge, typically between £1 and £2 per day.
Late payment charges usually apply at 8 % above the Bank of England base rate, plus a one-off admin fee of £40–£70 depending on the amount owed. For example, a £2,000 invoice paid 30 days late could attract roughly £13 interest plus the flat fee.
Yes. Corona Energy gives portfolio clients up to 5 % off unit rates when annual consumption exceeds 1 GWh. Multi-site accounts can also consolidate billing under one contract. For instance, a chain using 2.5 GWh per year might reduce costs by about £1,500–£2,000 annually compared with separate contracts.
Corona Energy’s “ECOrona” tariff supplies 100 % renewable power backed by Renewable Energy Guarantee of Origin (REGO) certificates. The premium is typically +0.5 p/kWh for electricity and +0.2 p/kWh for gas. A small office using 30,000 kWh per year would pay about £150 extra annually for the renewable option.
Businesses must usually provide at least 30 days’ written notice before the contract end date. If no notice is given, Corona may apply deemed rates around 37 p/kWh for electricity or 6.1 p/kWh for gas. Missing the renewal window by a month could double total energy costs.
Yes. Regional distribution charges vary by 2–4 p/kWh depending on the location. For instance, London and the South East tend to be about 3 p/kWh higher than the North West. A business in Manchester paying 14.7 p/kWh might see 17.5 p/kWh in Brighton under identical terms.