TEM Energy (often styled as just ‘tem’) offers UK organisations a different route to buying business electricity. Instead of acting like a conventional utility or an energy broker, its RED product uses software to match business demand with electricity from independent renewable generators.
That is an interesting proposition, particularly for half-hourly metered and multi-site organisations. TEM promotes lower costs, clearer bills and more direct links between generators and users.
However, buyers need to understand what is genuinely different, what still depends on the wider electricity market and which charges or environmental certificates are not necessarily included.
Our verdict is that TEM is a credible, innovative option worth quoting alongside established business electricity suppliers. Its strongest features are renewable traceability, data visibility and the potential to reduce the margin and complexity associated with traditional supply.
Its weaker points are the absence of public contracted tariff rates, a small and sharply divided independent review sample, no prominently advertised telephone support number and the fact that Renewable Energy Guarantees of Origin, or REGOs, cost extra.
All prices, company information and review figures in this article were checked on 25 July 2026.
TEM Energy at a glance
| Feature | Details |
|---|---|
| Trading name | tem, commonly written as TEM Energy |
| Legal company | TEM-Energy Limited, company number 13499591 |
| Founded | Incorporated on 7 July 2021 |
| What it is | A technology-led business electricity provider; it is not itself a licensed electricity supplier |
| Licensed supply partner | Versa Energy |
| Main business product | RED |
| Fuel offered through RED | Business electricity; we found no equivalent public TEM business gas offer |
| Main proposition | Matching business demand with independent renewable generation |
| Geographic availability | United Kingdom |
| Published saving claim | Up to 30%, according to TEM; this is not a guaranteed saving |
| Published scale | More than 6,000 sites, according to TEM |
| Standard contracted prices published? | No; RED quotes are bespoke |
| Published out-of-contract rate | 29p/kWh for half-hourly sites and 32.68p/kWh for non-half-hourly sites, plus other charges |
| Trustpilot rating | 4.0 out of 5 from 25 reviews at the time checked |
| Best suited to | Half-hourly metered, multi-site and sustainability-focused organisations willing to examine a bespoke quote |
| Less suited to | Businesses wanting dual fuel, a simple public price card, bundled REGOs or telephone-first support |
Company details can be verified through Companies House. TEM describes its current offering, customer scale and saving claims on the TEM website.
TEM Energy review: our verdict
EnergyCosts.co.uk rating: 4 out of 5
TEM deserves serious consideration because RED is more than a conventional tariff carrying a green label. Its system attempts to match forecast demand with forecast output from renewable generators, while its licensed partner completes the regulated supply functions. This can give a business better visibility over where its power is sourced and may create a more efficient route to market for both buyer and generator.
There are important qualifications. Matching does not remove the need for the national grid, balancing services, network charges or residual wholesale-market purchases. A saving advertised as “up to 30%” should not be treated as an expected outcome for every meter. Buyers must also request REGOs separately if their carbon-reporting policy or auditor requires them.
| Review category | Rating | Our assessment |
|---|---|---|
| Price potential | 4/5 | The model may remove some conventional supply costs, but savings depend on the individual quote |
| Pre-contract price transparency | 3/5 | Contracted rates are bespoke and no representative RED tariff table is published |
| Billing and usage visibility | 4.5/5 | Half-hourly data, automatic reconciliation and multi-site tools are strong features |
| Renewable traceability | 4/5 | Direct generator relationships are valuable, although REGOs are optional rather than bundled |
| Regulatory clarity | 3.5/5 | TEM explains that it is not licensed, but buyers still need to understand the respective roles of TEM and Versa |
| Customer service evidence | 3/5 | Many positive comments, but only 25 Trustpilot reviews and several serious negative experiences |
| Range of fuels | 2/5 | The public RED proposition is focused on electricity, not dual fuel |
| Overall | 4/5 | A compelling electricity option for suitable organisations, provided the contract and comparison are scrutinised |
Who is TEM Energy?
TEM-Energy Limited is a privately owned London-based company incorporated in July 2021. It was founded by Joe McDonald, Jason Stocks, Bartlomiej Szostek and Ross Mackay, all of whom had experience in energy trading, technology or renewable infrastructure.
The company presents itself as a technology business rebuilding the transaction layer of the electricity market. RED is the customer-facing product, while its software forecasts supply and demand, matches business users with generators and manages the resulting portfolio.
TEM has also attracted substantial institutional backing. In February 2026, it announced a $75 million Series B funding round led by Lightspeed Venture Partners. At that point, TechCrunch reported more than 2,600 business customers and named Boohoo Group, Fever-Tree and Newcastle United among its users. TEM’s more recent homepage uses a different measure, stating that RED powers more than 6,000 sites. Customer numbers and site numbers should not be treated as interchangeable. See TechCrunch’s funding report and TEM’s current website.
Is TEM Energy a supplier, a broker or a platform?
TEM is not a conventional licensed electricity supplier, and it says it is not an energy broker.
The distinction matters:
- A licensed supplier is responsible for regulated supply activities, including registering meters and complying with licence conditions.
- A broker or third-party intermediary normally searches the market or negotiates contracts between a customer and one or more suppliers.
- TEM provides the software, matching, commercial product and customer experience behind RED, while a licensed supply partner performs the regulated supply functions.
TEM’s licensed partner is Versa Energy Limited. Versa appears on Ofgem’s list of non-domestic electricity licensees and describes itself as a licensed electricity and gas supplier. TEM’s frequently asked questions explain that the partner handles meter registration and regulatory compliance.
This arrangement is legitimate, but a buyer should identify three things before signing:
- The legal entity named as the contracting party.
- The entity that will issue invoices and collect payment.
- Which organisation is responsible for complaints, compensation, supply continuity and regulatory obligations.
TEM’s complaints policy says that Versa Energy is the registered party for Energy Ombudsman purposes. That is a useful indication of how the responsibilities are divided, but the signed supply contract remains the definitive document.
How does TEM Energy work?
TEM’s proposition is often described as allowing businesses and generators to transact directly. In practice, the process has several stages.
| Stage | What happens |
|---|---|
| Demand forecast | TEM predicts how much electricity participating business sites will use and when they will use it |
| Generation forecast | It predicts the output available from renewable generators in its portfolio |
| Matching | The platform matches forecast business demand with forecast renewable production |
| Licensed supply | Versa Energy performs regulated supply activities and registers the customer’s meter |
| Balancing | Any shortfall or surplus is managed through the wider electricity market |
| Metering and reconciliation | Actual half-hourly data is compared with the forecast position and the account is reconciled |
| Billing | The customer receives an itemised bill and can view consumption and account information online |
The model may reduce the number of commercial layers between generators and users, but phrases such as “bypassing the wholesale market” need context. Matched volumes can be priced through direct arrangements, while unmatched demand, excess generation and system imbalances still have to be managed. Every site also continues to use the public electricity network and incur relevant regulated charges.
The electricity arriving at a site cannot be physically separated by source. Renewable matching is an accounting and contractual relationship between generation and demand, not a dedicated flow of particular electrons from a named solar farm or wind turbine.
What is the RED electricity product?
RED is TEM’s main business electricity product. Its advertised features include:
- Direct commercial relationships with independent renewable generators.
- Half-hourly consumption data and hourly usage insights.
- Itemised bills showing the components of the charge.
- Automatic reconciliation using actual meter data.
- A single online view of invoices, contracts and multiple sites.
- Renewable sourcing from solar, wind, hydro and anaerobic-digestion generators.
- Bespoke contracts rather than a public one-size-fits-all tariff.
TEM says customers can contract directly or access RED through participating brokers. A business using an intermediary should establish whether the broker is acting for the customer, TEM, Versa or another party, and obtain a written statement of all commission.
Who can use TEM Energy?
RED is a UK business electricity product. TEM’s FAQ highlights businesses with half-hourly meters that are able to switch, while the company also has a page explicitly inviting enquiries from microbusinesses.
That means a half-hourly meter appears to be the clearest fit, but smaller organisations should not assume they are excluded. Smart-meter data, profile class, consumption, credit position, contract end date, site count and the availability of suitable generation can all affect eligibility and pricing.
TEM may be particularly relevant to:
- Multi-site organisations needing one view of many meters.
- Businesses with half-hourly data and predictable consumption.
- Organisations that want a clearer link to renewable generators.
- Companies seeking an alternative to a standard supplier tariff.
- Energy-intensive users able to benefit from more detailed forecasting and matching.
It may be less suitable for a company that wants gas and electricity from one provider. We found no public RED gas proposition, so a dual-fuel business would probably need a separate gas contract.
TEM Energy prices
TEM does not publish standard contracted RED unit rates or standing charges. Quotes are calculated for the individual customer, meter portfolio and contract.
This makes live comparison essential. Ask TEM and competing suppliers to quote for the same:
- Contract start and end dates.
- Annual consumption and meter list.
- Payment method.
- Renewable-certification requirement.
- Fixed and pass-through cost treatment.
- Broker commission assumptions.
- VAT and Climate Change Levy treatment.
A transparent bill is not the same as transparent pre-sale pricing. TEM may itemise charges clearly after a customer joins, but a prospective customer still needs a complete quote showing the estimated annual cost and every component that can change.
Use EnergyCosts’ business electricity comparison service to compare RED with current supplier offers on a like-for-like basis.
TEM Energy out-of-contract rates
TEM publishes fallback rates for sites that remain supplied after a fixed contract ends without agreeing a replacement. These are not representative RED contract prices.
| Meter type | Published energy rate | Other published charges |
|---|---|---|
| Half-hourly | 29p/kWh | Standing charge, TNUoS, capacity, Climate Change Levy, reactive power, excess capacity and meter charges passed through |
| Non-half-hourly | 32.68p/kWh | Ordinary standing charge, an additional £3.54 a day for third-party distribution, metering and administration, plus TNUoS and Climate Change Levy |
Source: TEM out-of-contract rates, checked 25 July 2026. The page did not show a prominent effective date, so businesses should confirm the rates before relying on them.
The extra £3.54 daily non-half-hourly charge is £1,292.10 over 365 days. The following examples show only the charges that can be calculated from TEM’s published figures.
| Annual use | Half-hourly: energy charge at 29p/kWh | Non-half-hourly: energy charge at 32.68p/kWh plus £3.54 a day |
|---|---|---|
| 10,000kWh | £2,900 | £4,560.10 |
| 50,000kWh | £14,500 | £17,632.10 |
| 100,000kWh | £29,000 | £33,972.10 |
These are not total annual bills. They exclude some or all standing, network, capacity, metering, reactive-power, excess-capacity, Climate Change Levy and VAT charges. TEM’s page does not state clearly whether VAT is included in the headline pence-per-kWh figures, so buyers should request confirmation.
Out-of-contract supply is normally expensive and offers little budget certainty. Record the contract end date, notice requirements and renewal timetable well in advance.
Can TEM really save a business 30%?
TEM advertises savings of up to 30% and says its customers have collectively saved more than £40 million. It also publishes customer examples including a claimed 25% reduction for Silverstone over 12 months and a claimed £10,000, or 40%, saving for a sports club.
These figures are useful evidence that the model can work for some organisations, but they are company claims rather than a guaranteed result. “Up to” describes an upper outcome, not an average available to every customer. The public material we reviewed does not provide enough detail to reproduce the whole-portfolio saving calculation independently.
The percentage obtained by an individual business will depend on:
- Its previous tariff and renewal date.
- Market prices when each quote is produced.
- Load shape and forecast accuracy.
- Consumption volume.
- Credit terms and payment method.
- Contract length.
- Network region and meter configuration.
- The renewable generation available for matching.
- Which non-energy costs are fixed or passed through.
- Any broker commission.
Compare the total estimated annual cost, not the unit rate or advertised percentage alone. A lower commodity rate can be offset by higher standing, network, metering or pass-through charges.
How renewable is TEM Energy?
TEM says it contracts directly with independent solar, wind, hydro and anaerobic-digestion generators. It forecasts the output of those generators and matches it with customer demand.
No matching system is perfect. Generation and consumption fluctuate, while forecasts differ from actual meter readings. TEM says the small share that cannot be matched directly is balanced by Versa Energy and is usually less than 10%. That is TEM’s portfolio statement, not a promise that every site will have exactly the same percentage.
The approach can provide a stronger commercial connection to renewable generators than a tariff supported only by certificates bought separately. Nevertheless, businesses should ask for evidence covering:
- The generators matched to their portfolio.
- The technology and location of each generator.
- The proportion of annual and half-hourly demand matched.
- The treatment of shortfalls and surplus generation.
- Whether environmental attributes are transferred to the customer.
- Whether the same attributes can be claimed by another party.
Are REGOs included?
No. TEM says Renewable Energy Guarantees of Origin are optional and cost extra.
REGOs are certificates issued under Ofgem’s scheme to demonstrate that a quantity of electricity was generated from an eligible renewable source. They are widely used for fuel-mix disclosure and renewable-electricity claims.
Direct matching and REGOs answer related but different questions:
- Matching can show a commercial and time-based relationship between a business and renewable generators.
- REGOs provide the recognised certificate associated with renewable origin in the UK.
A business should not assume that direct matching alone automatically meets its market-based Scope 2 reporting policy. The GHG Protocol Scope 2 Guidance requires contractual instruments to meet specified quality criteria. The correct treatment will depend on the contract, evidence, ownership of environmental attributes, reporting framework and auditor’s interpretation.
Before signing, give the proposed evidence pack to the person responsible for carbon reporting. If REGOs are required, obtain their price and retirement arrangements in writing.
What is P442 and why does TEM mention it?
P442 is a modification to the Balancing and Settlement Code relating to electricity supplied under certain licence exemptions. It allows qualifying licence-exempt supply volumes to be excluded from the calculations for particular Electricity Market Reform levies, including Contracts for Difference and Capacity Market charges.
Ofgem approved P442 in 2023. Its purpose was to align the settlement code with the relevant regulations and enable eligible volumes to receive the intended levy treatment.
P442 should not be described as a universal government discount. Any benefit depends on the contractual structure, the generator’s licence-exempt status, the amount of eligible matched electricity and the applicable levy calculations.
Ask TEM to quantify separately:
- The volume expected to qualify.
- The assumptions used.
- The forecast cash saving.
- Who retains the benefit if actual eligibility differs from forecast.
- How the adjustment will appear on the bill.
Billing, portal and multi-site management
The digital experience is one of RED’s most attractive features. TEM advertises:
- Hourly usage insights.
- Access to invoices and contract information.
- One portal for multiple locations.
- Line-by-line bills.
- Billing from half-hourly consumption data.
- Automatic reconciliation when forecasts and actual use differ.
These features could reduce administrative work for estates, finance and sustainability teams. Their value will depend on the quality of meter data and how easily information can be exported into the customer’s own systems.
Multi-site buyers should request a demonstration using a realistic portfolio and test:
- Site-level and consolidated reporting.
- CSV or API data exports.
- User permissions and audit trails.
- Cost-centre allocation.
- Missing-data alerts.
- Invoice validation.
- Change-of-tenancy and site-addition processes.
- Downloadable carbon and generation reports.
TEM Energy customer reviews
TEM had a 4.0 out of 5 Trustpilot rating from 25 reviews when checked on 25 July 2026. Of those reviews, 80% were five-star and 20% were one-star, with none in the middle three categories. Trustpilot also indicated that 20 reviews had been posted during the preceding 12 months.
That is a positive headline score, but the sample is small and unusually polarised. It should be treated as an early signal rather than proof of consistent service across thousands of sites.
Positive themes included:
- Competitive pricing.
- A straightforward onboarding process.
- Clear bills and greater transparency.
- Helpful support from named staff.
- A useful online portal.
Negative themes included:
- Difficulty reaching support and the absence of a public telephone number.
- Delayed responses through email or live chat.
- Repeated or disputed invoices linked to a meter issue.
- A complaint about charges that the reviewer felt had not been explained clearly.
In at least one case, the criticism appeared to involve information provided through a broker. That reinforces the need to obtain one complete written schedule of prices and commission, regardless of which sales channel is used.
Trustpilot said TEM had replied to 25% of negative reviews, typically within 48 hours, at the time checked. Review-platform figures can change quickly, so readers should examine recent comments and the company’s responses before contracting.
TEM Energy customer service and complaints
TEM directs general enquiries to [email protected] and provides a web contact form. Businesses are asked to include their Meter Point Administration Number, or MPAN. We did not find a prominently published telephone support number on the pages reviewed.
That may be acceptable to digitally confident teams, but it is a drawback for customers that want to discuss an urgent billing, meter or payment problem by phone. The electricity-network emergency number 105 is for power cuts and network incidents, not account support.
TEM’s complaints policy states that it will:
- Acknowledge a complaint by the end of the next working day.
- Resolve it or provide a detailed update within three working days.
- Aim to reach a resolution within eight weeks.
Complaints can be sent to [email protected]. An eligible microbusiness or small business can escalate to the Energy Ombudsman after receiving a deadlock letter or after eight weeks without resolution. TEM says the registered Ombudsman party is its licensed partner, Versa Energy.
TEM also states that customers experiencing payment difficulty should contact it early. It says it may offer time to pay or a structured payment plan and treats disconnection as a last resort after significant debt and repeated failure to engage. Any arrangement remains subject to the individual circumstances and contract.
Contract points to check before signing
Business energy contracts can create binding commitments without the consumer cooling-off protections familiar to households. Read every document before accepting verbally, electronically or through a broker.
Pay particular attention to the following.
Fixed price versus fixed bill
Confirm exactly which components are fixed. A fixed unit rate does not necessarily fix the total bill if network, capacity, metering, balancing, policy or reconciliation charges can be passed through.
Forecasting and reconciliation
Ask how frequently the account is reconciled, which data is used, how errors are corrected and whether a large forecast difference can create a retrospective charge.
Renewable claims
Define the matching methodology, ownership of environmental attributes, REGOs, residual supply and reporting evidence in the contract rather than relying only on sales language.
Exit and renewal
Check the contract end date, termination window, automatic-renewal rules, early termination charges and the rate that applies if no renewal is agreed.
Counterparties and responsibilities
Identify the roles of TEM, Versa Energy, any broker, the meter operator and the data collector. Know where to send a complaint and which entity holds customer credit balances.
Broker commission
If an intermediary is involved, request the commission in pounds and pence and establish whether it is built into the unit rate, charged separately or paid another way.
Credit and security
Check deposit, direct-debit, credit-support, late-payment, interest and disconnection provisions. A headline quote may change after credit assessment.
Is TEM good for small and microbusinesses?
Potentially. TEM explicitly invites microbusiness enquiries, and smaller firms can benefit from clearer data and access to renewable procurement models that were historically aimed at large corporations.
However, a very small user may not obtain the same percentage saving as a larger or more predictable load. The administrative benefit may also be lower for a single simple meter. Microbusinesses should compare:
- Total annual cost.
- Ease of support.
- Contract length and notice.
- Out-of-contract exposure.
- Whether their meter can provide the required data.
- The cost of optional REGOs.
The legal protections available to an eligible microbusiness or small business are better than those available to a large corporate customer, but they are still not identical to domestic consumer protections.
Is TEM good for large or multi-site businesses?
This is probably RED’s strongest use case. Large portfolios create more data, forecasting and procurement complexity, giving TEM’s matching engine and consolidated portal more opportunity to add value.
Large users should still run a structured procurement exercise. Ask TEM to provide:
- A meter-by-meter price schedule.
- A consolidated annual budget.
- Sensitivity analysis for volume and market changes.
- A statement of fixed and pass-through costs.
- Service-level commitments.
- Data-export and system-integration details.
- Renewable-matching and certificate evidence.
- A transition plan for acquiring or disposing of sites.
An organisation with an experienced energy manager may be able to test the assumptions in detail. A business without that expertise could use an independent adviser, provided all fees and commercial relationships are disclosed.
TEM Energy pros and cons
| Pros | Cons |
|---|---|
| Innovative direct-matching model | TEM itself does not hold the supply licence |
| Potential for lower costs | The advertised saving is not guaranteed |
| Links customers with independent renewable generators | REGOs are optional and cost extra |
| Strong half-hourly data and multi-site proposition | No public table of normal contracted RED prices |
| Itemised billing and automatic reconciliation | Total cost may still include variable or pass-through elements |
| Publicly disclosed out-of-contract rates | Out-of-contract charges can be expensive |
| Positive overall Trustpilot score | Only 25 reviews, with all ratings either five-star or one-star |
| Open to microbusiness enquiries | No prominently advertised telephone support number |
| P442 may create value for eligible volumes | P442 savings do not apply universally |
| Backed by substantial external investment | No equivalent public gas product found |
Alternatives to TEM Energy
TEM should be compared with several types of provider rather than only one direct rival.
| Business priority | Options to compare |
|---|---|
| Conventional competitive supply | Obtain quotes from established business suppliers through the EnergyCosts.co.uk supplier directory |
| Electricity-only renewable specialist | Compare the Bryt Energy review |
| Specialist renewable sourcing | Compare Good Energy and Ecotricity |
| Digital-first supplier | Compare Octopus Energy |
| Understanding green tariff evidence | Read the EnergyCosts.co.uk guide to green business energy |
The best alternative depends on whether the buyer prioritises the lowest expected cost, a fixed budget, renewable evidence, customer support, flexible purchasing or one contract for both gas and electricity.
Questions to ask TEM before accepting a quote
Use this checklist during procurement:
- Which legal entity will contract with us?
- Which legal entity holds our supply licence and registers each MPAN?
- What is the total estimated annual cost for every site?
- Which charges are fixed, variable, indexed, reconciled or passed through?
- Does the quote include standing charges, network costs, capacity charges, metering, Climate Change Levy and VAT?
- What assumptions have been made about annual volume and half-hourly load shape?
- How are deviations between forecast and actual consumption charged?
- What percentage of our demand is expected to be matched directly?
- Which generators and technologies will be used?
- How will residual or unmatched electricity be sourced?
- Are the renewable attributes transferred exclusively to us?
- How much do REGOs cost, and who will retire them?
- What evidence will we receive for Scope 2 reporting?
- Does any expected P442 benefit apply to our portfolio, and how is it calculated?
- What broker or intermediary commission is included?
- What security deposit, credit support or direct-debit terms apply?
- What are the contract length, notice window and early termination charge?
- What rate applies after the fixed term?
- What telephone or urgent support is available for billing and meter problems?
- Can the portal and reports be demonstrated before we sign?
How to get a TEM Energy quote
TEM accepts enquiries through its website. Have the following information ready:
- A recent electricity invoice for every site.
- MPANs.
- Contract end dates and termination requirements.
- At least 12 months of consumption data where available.
- Half-hourly data for larger meters.
- Site addresses and operational hours.
- Details of planned openings, closures, electrification or efficiency projects.
- Preferred contract length.
- Carbon-reporting and REGO requirements.
- Payment and billing preferences.
Do not assess the TEM quote in isolation. Obtain like-for-like offers with the same start date, duration, consumption assumptions and tax treatment. Compare expected annual cost under a realistic base case and a higher- or lower-consumption scenario.
Final verdict: is TEM Energy worth considering?
Yes. TEM Energy is worth considering for UK organisations buying business electricity, particularly half-hourly metered and multi-site users that value renewable traceability and detailed consumption data.
RED’s matching model is a genuine point of difference. It may produce a better commercial outcome for customers and independent generators than a conventional tariff. The portal, itemised billing and automatic reconciliation also address common frustrations in business energy.
TEM is not automatically the cheapest or greenest answer for every organisation. Its quoted 30% saving requires individual verification; REGOs are not included by default; the normal contracted prices are not published; and the independent customer-review base is still small. Buyers also need to understand the licensed-supplier partnership with Versa and the treatment of balancing, network and pass-through charges.
Our recommendation is to include TEM in a competitive tender, request a complete annual-cost model and have the renewable evidence checked against the organisation’s reporting policy. If RED wins that comparison and the contract answers the questions above, it can be a strong choice.
FAQ
No. TEM says it does not hold a UK electricity supply licence. Its licensed partner, Versa Energy, performs regulated supply functions such as meter registration and compliance.
TEM says it is not a broker. RED is its own electricity proposition, although businesses may be introduced to it or contract through participating brokers.
The public RED proposition we reviewed is for business electricity. We found no equivalent public TEM business gas tariff, so ask TEM directly if gas procurement is required.
Normal RED contract prices are bespoke and are not published as a standard tariff table. TEM’s published out-of-contract rates were 29p/kWh for half-hourly meters and 32.68p/kWh for non-half-hourly meters when checked, with additional charges.
No. TEM advertises savings of up to 30%, but the result depends on the customer’s existing contract, consumption, meter, location, market conditions and quoted cost structure.
TEM matches demand with independent renewable generators and says the residual share is usually below 10%. Physical grid electricity cannot be separated by source, and customers should examine the contractual evidence, matching percentage and treatment of unmatched volumes before making a 100% claim.
No. TEM says REGOs are available as an optional extra. Ask for the certificate price, ownership and retirement process in writing.
RED is TEM’s business electricity product. It uses forecasting and transaction software to match customers’ consumption with generation, while licensed partner Versa Energy carries out the regulated supply functions.
TEM invites microbusiness enquiries. Eligibility and pricing will depend on the meter, consumption, contract status, credit position and other site details.
Yes. Half-hourly data is central to RED’s forecasting, billing and reconciliation proposition, and TEM describes switchable half-hourly sites as suitable prospects.
If supply continues without a replacement agreement, published out-of-contract rates may apply. These can include a higher energy rate and several additional charges, so arrange renewal or switching before the fixed term ends.
Contact [email protected]. TEM says it will acknowledge complaints by the end of the next working day and aims to resolve them within eight weeks. Eligible microbusiness and small-business customers can approach the Energy Ombudsman after a deadlock letter or eight weeks.
Editorial methodology: This review uses public information from TEM, Versa Energy, Companies House, Ofgem, Elexon, the GHG Protocol, Trustpilot and third-party reporting. Company saving, customer and renewable-matching figures are identified as TEM claims. Rates and review data were checked on 25 July 2026 and may change.
