Brook Green Supply business prices and tariffs review

Brook Green Supply is a specialist UK business energy supplier focused on commercial and industrial customers. It is not a typical small business energy supplier offering quick online tariffs for shops, offices and cafés. Instead, Brook Green Supply is positioned around large energy users, fixed and flexible procurement, renewable electricity and gas, Power Purchase Agreements, energy certificates, risk management and bespoke supply contracts.

For businesses with higher consumption, complex energy needs or sustainability targets, Brook Green Supply could be a serious supplier to consider. It supplies both electricity and gas, offers renewable energy options, and has an in-house trading desk designed to support more sophisticated procurement decisions.

However, Brook Green Supply is not the easiest supplier to compare on price. Its standard contracted business electricity and gas prices are not published in a simple tariff table. Businesses need to request a bespoke quote. The clearest public pricing information is its deemed and default rates, which apply when a business is supplied without a formal contract or after a contract has ended.

Brook Green Supply business energy at a glance

Category	Brook Green Supply business energy review
Supplier name	Brook Green Supply
Legal company name	Brook Green Supply Limited
Company number	09910619
Incorporated	10 December 2015
Registered office	245 Hammersmith Road, London, W6 8PW
Company status	Active
Business electricity	Yes
Business gas	Yes
Domestic supply	No, focused on non-domestic customers
Main customer type	Industrial and commercial energy users
Contract types	Fixed, flexible, renewable and PPA-linked options
Public contracted tariff table	No
Public deemed/default rates	Yes
Renewable electricity	Yes, REGO-backed options available
Renewable gas	Yes, RGGO-backed options available
PPAs	Yes
In-house trading desk	Yes
Best for	Larger businesses, high-volume users and sustainability-led organisations
Less suitable for	Microbusinesses wanting simple online tariffs
Overall view	A strong specialist supplier for complex business energy needs, but not a transparent price-led SME tariff provider

Our verdict on Brook Green Supply for business energy

Brook Green Supply is a strong option for businesses that need more than a basic fixed energy tariff. Its proposition is built around commercial supply, renewable energy procurement, risk management and tailored pricing. That makes it a better fit for larger SMEs, multi-site businesses, manufacturers, food and drink producers, logistics operators, data centres, public sector organisations and industrial users.

Its strengths are clear. Brook Green Supply offers both electricity and gas, fixed and flexible procurement, renewable certificates, PPAs and specialist support for larger energy users. Its own segmental data also shows a large-volume, non-domestic customer base rather than a mass-market domestic supply model.

The main drawback is price visibility. Brook Green Supply does not publish standard contracted rates for businesses to compare easily. Deemed and default rates are published, but those are temporary fallback tariffs and are likely to be more expensive than a negotiated contract.

Overall, Brook Green Supply should be treated as a specialist commercial energy supplier. It is worth including in a tender or broker-led comparison for larger or more complex businesses, but smaller firms should compare carefully against simpler SME suppliers.

Brook Green Supply business ratings

Area reviewed	Rating	Reason
Price transparency	3/5	Deemed and default rates are published, but contracted rates are quote-led
Large business suitability	4.5/5	Strong focus on high-volume and complex energy users
SME suitability	3/5	May suit larger SMEs, but not as simple as online SME tariff providers
Tariff flexibility	4.5/5	Fixed, flexible, renewable and PPA-linked structures are available
Green energy options	4.5/5	REGO, RGGO and PPA options support sustainability goals
Customer review visibility	2.5/5	Public customer review volume is limited
Gas suitability	4/5	Supplies gas and offers renewable gas certificate options
Overall rating	4/5	Strong specialist supplier for sophisticated business energy buying

Who is Brook Green Supply?

Brook Green Supply is a UK business energy supplier based in London. It supplies non-domestic electricity and gas and describes itself as an end-to-end energy partner for large energy users.

The company was incorporated in December 2015 and is part of a wider energy group structure. Its own consolidated segmental statement says Brook Green Trading Limited and BGI Trading Limited are the relevant licensed entities within the CFP Energy Solutions Group that hold electricity and gas supply licences.

Brook Green Supply’s website is not built around quick domestic-style tariff comparisons. It is aimed at organisations that need to buy, manage, optimise and decarbonise energy. This includes fixed supply, flexible supply, renewable energy certificates, PPAs, trading support and decarbonisation solutions.

What does Brook Green Supply offer businesses?

Brook Green Supply offers a broad range of commercial energy products.

Product or service	Available?	Notes
Business electricity	Yes	Core supply product for commercial and industrial users
Business gas	Yes	Gas supply available for non-domestic customers
Fixed energy contracts	Yes	Electricity and gas contracts with fixed pricing options
Flexible energy contracts	Yes	Designed to manage wholesale market exposure
Renewable electricity	Yes	REGO-backed electricity options available
Renewable gas	Yes	RGGO-backed gas options available
Power Purchase Agreements	Yes	PPA options for renewable energy procurement
Renewable Energy Certificates	Yes	REGOs and RGGOs available
In-house trading desk	Yes	Supports risk management and market insight
Non-commodity cost support	Yes	Explains network, policy and other third-party charges
Domestic tariffs	No	Not positioned as a household supplier
Public standard tariff table	No	Businesses need a tailored quote

Brook Green Supply business electricity prices

Brook Green Supply does not publish a public table of standard contracted business electricity prices. There is no simple tariff list showing one-year, two-year and three-year fixed rates by region, meter type and consumption band.

Instead, pricing is quote-led. A business quote is likely to depend on:

Pricing factor	Why it matters
Annual electricity consumption	Large users are usually priced differently from low-usage SMEs
Half-hourly data	Larger meters can be priced more accurately using interval data
Meter profile	Non-half-hourly and half-hourly sites have different cost structures
Region	Distribution charges vary across the UK
Contract start date	Wholesale prices move daily
Contract length	Short and long contracts carry different risks
Fixed or flexible structure	Flexible contracts may expose the business to market movements
Pass-through charges	Network and policy charges may be fixed or passed through
Renewable requirement	REGO-backed or PPA-linked energy can change the price
Credit risk	Supplier credit checks can affect contract terms
Broker or consultant involvement	Broker commission can be built into the unit rate
Multi-site portfolio	Sites may be priced individually or as a group

This makes Brook Green Supply harder to compare quickly, but it is common for suppliers serving larger commercial and industrial customers.

Brook Green Supply business gas prices

Brook Green Supply also does not publish a public table of standard contracted business gas prices. As with electricity, business gas prices are quote-led and depend on the site, annual usage, metering, contract structure and risk position.

Gas pricing can be especially sensitive for larger users because the annual volumes are much higher than for a typical small business. A manufacturer, hotel, food producer, care home group, laundry, brewery or leisure facility may use hundreds of thousands or millions of kWh of gas per year.

For gas contracts, businesses should compare:

Gas pricing point	Why it matters
Commodity rate	The core p/kWh gas price
Daily standing charge	The fixed daily cost per meter
Metering charges	Larger gas meters may have additional charges
Transportation charges	Gas network costs can be material
Capacity charges	Relevant for larger users
Renewable gas certificates	RGGOs may add cost but support sustainability reporting
Fixed or pass-through structure	Determines whether charges are locked or variable
Consumption tolerance	High variation from forecast can create pricing risk
Contract end date	Missing renewal deadlines can lead to default rates

Brook Green Supply deemed rates

Brook Green Supply publishes deemed rates for businesses supplied without a formal contract. These often apply after a change of occupancy, where a business moves into premises already supplied by Brook Green Supply and starts using energy before agreeing a new contract.

As of 1 April 2026, Brook Green Supply’s published deemed rates are:

Deemed electricity rates

Meter profile	Daily charge	Unit rate	Capacity	DUoS fixed	TNUoS
Non-half-hourly	£4/day	37.82p/kWh	Pass through	Pass through	Pass through
Half-hourly	£4/day	37.82p/kWh	Pass through	Pass through	Pass through

Deemed gas rates

EUC band	Daily charge	Unit rate	kWh range
Bands 1 and 2	£6.50/day	9.21p/kWh	Up to 293,000
Bands 3 and 4	£25/day	9.21p/kWh	293,001 to 2,196,000
Bands 5 and 6	£72.25/day	9.21p/kWh	2,196,001 to 14,650,000
Bands 7 to 9	Site specific	9.21p/kWh	14,650,001+

Brook Green Supply states that these prices do not include all network charges, including Distribution Use of System and Transmission Use of System charges, which are passed through at standard rates.

Brook Green Supply default rates

Default rates apply when a business contract with Brook Green Supply has ended and no new contract is in place. These are different from deemed rates, but they are also temporary fallback rates.

As of 1 April 2026, Brook Green Supply’s published default rates are:

Default electricity rates

Meter profile	Daily charge	Unit rate	Capacity	DUoS fixed	TNUoS
Non-half-hourly	£4/day	39.54p/kWh	Pass through	Pass through	Pass through
Half-hourly	£4/day	39.54p/kWh	Pass through	Pass through	Pass through

Default gas rates

EUC band	Daily charge	Unit rate	kWh range
Bands 1 and 2	£6.50/day	9.62p/kWh	Up to 293,000
Bands 3 and 4	£25/day	9.62p/kWh	293,001 to 2,196,000
Bands 5 and 6	£72.25/day	9.62p/kWh	2,196,001 to 14,650,000
Bands 7 to 9	Site specific	9.62p/kWh	14,650,001+

For most businesses, default rates should be avoided where possible. They are a useful safety net, but not a long-term procurement strategy.

Example Brook Green Supply deemed electricity costs

The table below shows estimated electricity costs using Brook Green Supply’s deemed electricity rate of 37.82p/kWh and a £4 daily charge. These examples exclude pass-through network charges, VAT, Climate Change Levy and any other additional charges.

Annual electricity use	Unit rate cost	Annual daily charge	Estimated annual cost
10,000 kWh	£3,782	£1,460	£5,242
25,000 kWh	£9,455	£1,460	£10,915
50,000 kWh	£18,910	£1,460	£20,370
100,000 kWh	£37,820	£1,460	£39,280
250,000 kWh	£94,550	£1,460	£96,010
500,000 kWh	£189,100	£1,460	£190,560
1,000,000 kWh	£378,200	£1,460	£379,660

This demonstrates why deemed rates are particularly costly for larger electricity users. A site using 1,000,000 kWh per year would pay almost £380,000 before additional pass-through charges and taxes.

Example Brook Green Supply default electricity costs

The table below uses Brook Green Supply’s default electricity rate of 39.54p/kWh and a £4 daily charge.

Annual electricity use	Unit rate cost	Annual daily charge	Estimated annual cost
10,000 kWh	£3,954	£1,460	£5,414
25,000 kWh	£9,885	£1,460	£11,345
50,000 kWh	£19,770	£1,460	£21,230
100,000 kWh	£39,540	£1,460	£41,000
250,000 kWh	£98,850	£1,460	£100,310
500,000 kWh	£197,700	£1,460	£199,160
1,000,000 kWh	£395,400	£1,460	£396,860

Default electricity rates are higher than the deemed rates, so businesses should agree a new contract before their existing deal ends.

Example Brook Green Supply deemed gas costs

The table below shows estimated gas costs using Brook Green Supply’s deemed gas rate of 9.21p/kWh and the relevant daily charge for each EUC band. These figures exclude taxes and any pass-through charges.

Annual gas use	EUC band used	Unit rate cost	Annual daily charge	Estimated annual cost
100,000 kWh	Bands 1 and 2	£9,210	£2,373	£11,583
250,000 kWh	Bands 1 and 2	£23,025	£2,373	£25,398
500,000 kWh	Bands 3 and 4	£46,050	£9,125	£55,175
1,000,000 kWh	Bands 3 and 4	£92,100	£9,125	£101,225
2,000,000 kWh	Bands 3 and 4	£184,200	£9,125	£193,325
5,000,000 kWh	Bands 5 and 6	£460,500	£26,371	£486,871
10,000,000 kWh	Bands 5 and 6	£921,000	£26,371	£947,371

For gas-intensive businesses, the daily charge can be significant, but the unit rate is usually the bigger cost driver because consumption volumes are high.

Example Brook Green Supply default gas costs

The table below uses Brook Green Supply’s default gas rate of 9.62p/kWh and the relevant daily charge.

Annual gas use	EUC band used	Unit rate cost	Annual daily charge	Estimated annual cost
100,000 kWh	Bands 1 and 2	£9,620	£2,373	£11,993
250,000 kWh	Bands 1 and 2	£24,050	£2,373	£26,423
500,000 kWh	Bands 3 and 4	£48,100	£9,125	£57,225
1,000,000 kWh	Bands 3 and 4	£96,200	£9,125	£105,325
2,000,000 kWh	Bands 3 and 4	£192,400	£9,125	£201,525
5,000,000 kWh	Bands 5 and 6	£481,000	£26,371	£507,371
10,000,000 kWh	Bands 5 and 6	£962,000	£26,371	£988,371

The difference between deemed and default gas rates becomes material at high consumption levels. For a site using 5,000,000 kWh per year, the unit-rate difference alone is £20,500 per year.

Brook Green Supply prices compared with market benchmarks

The table below shows wider UK non-domestic electricity benchmarks. These are not Brook Green Supply contracted prices. They are included to help businesses compare a live quote against the wider market.

Business electricity size band	Annual consumption	UK non-domestic average price including CCL
Very small	0–20 MWh	36.106p/kWh
Small	20–499 MWh	29.570p/kWh
Small/medium	500–1,999 MWh	28.395p/kWh
Medium	2,000–19,999 MWh	25.356p/kWh
Large	20,000–69,999 MWh	23.555p/kWh
Very large	70,000–150,000 MWh	22.514p/kWh
Extra large	More than 150,000 MWh	21.128p/kWh
Average	All non-domestic users	23.988p/kWh

The next table shows wider UK non-domestic gas benchmarks.

Business gas size band	Annual consumption	UK non-domestic average price including CCL
Very small	Under 278 MWh	8.121p/kWh
Small	278–2,777 MWh	4.887p/kWh
Medium	2,778–27,777 MWh	4.571p/kWh
Large	27,778–277,777 MWh	3.918p/kWh
Very large	277,778–1,111,112 MWh	3.835p/kWh
Average	All non-domestic users	5.067p/kWh

Brook Green Supply’s deemed and default rates are higher than these benchmark averages. That is not unusual, because deemed and default rates are temporary fallback rates rather than negotiated contracted tariffs.

Brook Green Supply financial and supply data

Brook Green Supply’s consolidated segmental statement gives useful insight into the scale of its supply business.

Brook Green Supply data	Electricity supply	Gas supply	Aggregate supply business
Total revenue	£741.2m	£254.2m	£995.3m
Revenue from sale of electricity and gas	£412.3m	£228.0m	£640.3m
Other revenues	£328.9m	£26.2m	£355.1m
Total operating costs	£706.8m	£250.3m	£957.1m
Direct fuel costs	£391.6m	£222.8m	£614.3m
Transportation costs	£134.7m	£17.2m	£151.9m
Environmental and social obligation costs	£144.3m	£8.5m	£152.8m
EBITDA	£34.4m	£3.9m	£38.3m
EBIT	£34.4m	£3.9m	£38.2m
Volume supplied	2.7 TWh	181.4m therms	Not stated
Average meter points	4,000	1,700	5,700
WACO	£143.9/MWh	122.8p/therm	Not stated

This data reinforces the view that Brook Green Supply is focused on large non-domestic energy users. Supplying 2.7 TWh of electricity across around 4,000 electricity meter points suggests average annual consumption of roughly 675,000 kWh per electricity meter point. Supplying 181.4 million therms of gas across around 1,700 gas meter points suggests very large average gas consumption per meter point.

These are broad averages and should not be treated as customer tariff prices, but they help show why Brook Green Supply is not directly comparable with a supplier focused mainly on small shops and offices.

Approximate revenue and cost indicators

Using Brook Green Supply’s segmental statement, it is possible to calculate approximate revenue and cost indicators. These are not retail tariffs, because they are based on total reported revenue, costs and volumes.

Indicator	Calculation	Approximate result
Electricity revenue from sale per MWh	£412.3m / 2.7 TWh	£153/MWh
Electricity revenue from sale per kWh	£153/MWh converted	15.3p/kWh
Electricity total revenue per MWh	£741.2m / 2.7 TWh	£275/MWh
Electricity total revenue per kWh	£275/MWh converted	27.5p/kWh
Electricity WACO	Published figure	£143.9/MWh
Electricity WACO per kWh	£143.9/MWh converted	14.4p/kWh
Gas revenue from sale per therm	£228.0m / 181.4m therms	126p/therm
Gas revenue from sale per kWh	126p/therm converted	Around 4.3p/kWh
Gas total revenue per therm	£254.2m / 181.4m therms	140p/therm
Gas total revenue per kWh	140p/therm converted	Around 4.8p/kWh
Gas WACO	Published figure	122.8p/therm

These figures should be used carefully. They are useful for understanding Brook Green Supply’s scale and cost base, but a business should not treat them as quote prices.

Fixed energy contracts

Brook Green Supply offers fixed electricity and gas contracts. A fixed contract locks in the unit price for a specific period, giving the business more predictable costs.

This may suit businesses that want budget certainty and do not want to monitor the wholesale market closely.

Fixed contract benefit	Why it matters
Budget certainty	Easier to forecast annual energy spend
Protection from market spikes	Unit prices stay fixed during the agreed term
Simpler management	Less need to track wholesale prices daily
Useful for stable usage	Works best where consumption is predictable
Choice of structure	Non-commodity charges may be fixed or passed through
Renewable option	Renewable energy can be chosen with fixed supply

A fixed contract can be attractive for businesses with steady consumption, but it can also mean missing out if wholesale prices fall after signing.

Flexible energy contracts

Brook Green Supply also offers flexible energy contracts. These are designed for businesses that want to spread their exposure to wholesale market movements rather than fixing everything at one point in time.

Flexible contracts may involve buying energy in stages, hedging at different times or blending fixed and flexible elements.

Flexible contract benefit	Why it matters
Market timing	Energy can be bought in tranches rather than all at once
Risk management	The business can control exposure to price movements
Suitable for large users	Higher consumption makes procurement timing more valuable
More strategic buying	Useful for businesses with internal or consultant expertise
Can blend certainty and flexibility	Some costs can be fixed while others remain flexible
Supports complex operations	Useful where demand changes seasonally or operationally

Flexible contracts are not automatically cheaper. They require governance, clear risk limits and an understanding of wholesale market exposure.

Renewable energy supply

Brook Green Supply offers renewable electricity and gas options on fixed and flexible contracts. Its renewable supply proposition includes Renewable Energy Certificates, Power Purchase Agreements and green certificates.

For businesses, this can support:

Sustainability need	Brook Green Supply option
Renewable electricity reporting	REGO-backed electricity
Renewable gas reporting	RGGO-backed gas
Stronger renewable sourcing	PPA-linked supply
Market-based Scope 2 reporting	Renewable electricity certificates
Tender and ESG evidence	Fuel mix and certificate documentation
Public sector procurement	Auditable renewable supply evidence
Corporate sustainability strategy	Tailored renewable supply structures

Businesses should ask exactly what evidence will be supplied, whether the renewable electricity is REGO-backed, whether gas is RGGO-backed, and whether the arrangement is certificate-only or linked to a specific PPA.

Brook Green Supply fuel mix

Brook Green Supply publishes a fuel mix covering standard supply, REGO-backed green supply and conventional or “brown” supply.

Its REGO-backed green electricity mix is shown as:

Renewable source	Share of REGO-backed fuel mix
Wind	73.24%
Biomass	18.93%
Hydro	6.40%
Solar	1.43%
Total renewables	100%

Brook Green Supply also reports 0g/kWh carbon emissions for its REGO-backed fuel mix. For comparison, its overall fuel mix is not zero-carbon, so businesses need to make sure the specific contract they sign includes the renewable product they expect.

Renewable Energy Certificates

Brook Green Supply offers Renewable Energy Certificates, including REGOs for electricity and RGGOs for gas.

Certificate type	What it evidences
REGO	Renewable electricity generation in the UK
RGGO	Renewable gas injected into the gas grid
REC-backed supply	Energy usage matched with renewable sources
Standalone certificates	Certificates may be procured alongside or separately from supply
Fuel mix statement	Supports reporting and verification

This can be helpful for businesses that want green credentials but do not need a long-term PPA. It may also suit companies with variable consumption or those that need flexibility over the type and timing of renewable certificate procurement.

Brook Green Supply PPAs

Brook Green Supply offers Power Purchase Agreements for businesses that want a more direct route to renewable energy. A PPA can help a business lock in energy certainty, support renewable generation and strengthen sustainability reporting.

Brook Green Supply says its PPA structures can be tailored to the organisation’s energy needs, risk appetite and sustainability goals. It also states that REGOs are included alongside PPAs to support transparent reporting.

PPA feature	Why it matters
Medium- to long-term price certainty	Helps reduce exposure to wholesale volatility
Renewable power sourcing	Supports decarbonisation and ESG goals
REGOs included	Helps evidence renewable electricity supply
Direct generator relationships	Can support stronger renewable procurement claims
Flexible structures	May avoid very long commitments in some cases
Integration with supply agreement	Can simplify billing and implementation

PPAs are more complex than standard fixed contracts. Businesses should review contract length, volume risk, settlement, credit requirements and reporting treatment before signing.

Non-commodity costs

Brook Green Supply provides information on non-commodity costs, which are a major part of business energy bills. These are the costs beyond the wholesale energy itself.

Common non-commodity costs include:

Cost type	Meaning
DUoS	Distribution Use of System charges
TNUoS	Transmission Network Use of System charges
BSUoS	Balancing Services Use of System charges
Capacity Market	Charges supporting security of supply
Contracts for Difference	Low-carbon generation support scheme
Renewables Obligation	Renewable electricity support cost
Feed-in Tariff	Legacy small-scale renewable support
Climate Change Levy	Tax on non-domestic energy use
Metering and data charges	Charges linked to metering and settlement

A key contract decision is whether these costs are fixed in the unit rate or passed through. Fixed non-commodity costs make budgeting easier, while pass-through pricing can provide transparency but exposes the business to changes.

Who is Brook Green Supply best for?

Brook Green Supply is most relevant for businesses with larger, more complex or more strategic energy needs.

Business type	Why Brook Green Supply may fit
Manufacturers	High energy use and need for risk management
Food and drink producers	Large electricity and gas demand
Data centres	High electricity demand and sustainability pressure
Transport and logistics firms	Large sites and possible electrification needs
Public sector organisations	Renewable procurement and reporting requirements
Education institutions	Multi-site estates and sustainability targets
Hospitality and leisure groups	Dual fuel use across multiple locations
Pharmaceutical businesses	High energy use and compliance needs
Financial services firms	ESG reporting and renewable electricity demand
Multi-site commercial groups	Portfolio-level energy procurement

It may be less suitable for very small businesses that simply want the cheapest available fixed unit rate.

Brook Green Supply for small businesses

Brook Green Supply can supply business customers, but its proposition is not mainly built around microbusinesses. A small shop, salon, office or café may find simpler comparison options from suppliers that specialise in small business fixed tariffs.

That said, larger SMEs may still find Brook Green Supply attractive if they have:

Requirement	Relevance
Higher annual consumption	Brook Green Supply is geared towards larger users
Multiple sites	Portfolio pricing may be useful
Renewable electricity goals	REGO-backed supply is available
Renewable gas goals	RGGO-backed gas is available
Procurement support	Fixed and flexible options are available
Broker involvement	Brook Green Supply works with partners and consultants
Energy data requirements	Optimus and dashboards may support management

Small businesses should check the total annual cost carefully, especially if the quote includes pass-through charges.

Brook Green Supply for large businesses

Brook Green Supply is a much stronger fit for larger businesses. Its website specifically refers to high-volume and complex energy consumers, and its segmental data shows substantial electricity and gas supply volumes.

Large users may benefit from:

Requirement	Brook Green Supply fit
Bespoke electricity contracts	Strong
Bespoke gas contracts	Strong
Fixed procurement	Strong
Flexible procurement	Strong
Renewable certificates	Strong
PPAs	Strong
Market insight	Strong
In-house trading support	Strong
Multi-site energy management	Strong
Decarbonisation support	Strong
Simple online tariffs	Weaker

For a large business, the lack of a public tariff table is less of a problem because pricing is usually bespoke anyway. The more important issue is whether the contract structure matches the business’s usage, risk appetite and sustainability goals.

Brook Green Supply customer reviews

Public customer review data for Brook Green Supply is limited. There is a Trustpilot profile, but the number of reviews is small, so the score should not be treated as a reliable broad measure of customer service.

For larger business energy suppliers, review websites are often less useful than for domestic suppliers. A supplier may have a small number of high-value customers, with relationships managed through account teams, consultants and procurement specialists.

Before signing, businesses should ask for:

Evidence to request	Why it matters
Account management structure	Confirms who handles the relationship
Billing examples	Shows how clear invoices are
Customer references	Useful for larger tenders
Escalation route	Important for billing and metering issues
Service-level expectations	Helps set response expectations
Complaints process	Shows how disputes are handled
Portal access details	Useful for data and invoice management
Renewal support	Helps avoid default rates

Brook Green Supply portal and support

Brook Green Supply provides customer support and access to its Optimus customer platform. Its support pages cover areas such as complaints, data and forecasting, metering, new electricity connections, regulatory and policy support, and customer platform access.

For larger businesses, portal and data capability can be important. Energy managers often need more than a monthly bill. They may need consumption data, budget tracking, site-level reporting, carbon reporting and invoice validation.

Contract terms to check before signing

Before signing a Brook Green Supply contract, check the following points carefully.

Contract detail	What to check
Electricity unit rate	p/kWh by meter, site and time band
Gas unit rate	p/kWh by meter and site
Daily charges	Standing charges and any fixed daily charges
Fixed or flexible structure	Determines price certainty and market exposure
Non-commodity costs	Fixed or passed through
Capacity charges	Important for larger electricity and gas users
DUoS and TNUoS	Whether network charges are included or passed through
BSUoS	Whether balancing charges are fixed or variable
Climate Change Levy	Whether quoted prices include or exclude CCL
VAT	Whether prices are excluding or including VAT
Renewable certificates	REGOs, RGGOs or PPA evidence
Contract term	Start date, end date and renewal process
Volume tolerance	What happens if usage differs from forecast
Credit requirements	Deposits, guarantees or parent-company support
Broker commission	Whether commission is included
Deemed/default rates	What applies if no contract is in place
Termination rights	Notice periods and exit fees
Billing process	Actual or estimated billing and reconciliation

For large users, these details can be more important than a headline unit rate.

Brook Green Supply price risks

Brook Green Supply can offer sophisticated procurement, but businesses should understand the risks.

Risk	What it means
Quote-led pricing	You need a live quote to judge value
Pass-through charges	Some costs may change during the contract
Flexible procurement risk	Market movements can increase costs
Forecasting risk	Incorrect consumption estimates can affect pricing
Deemed/default rates	Temporary rates are expensive
Renewable certificate cost	REGOs and RGGOs can add cost
PPA complexity	Long-term commitments need careful review
Billing complexity	Large-user bills can include many cost lines
Broker commission	Costs may be embedded in rates

These risks do not mean Brook Green Supply is a poor choice. They mean the contract needs to be reviewed properly.

Brook Green Supply pros and cons

Pros

Advantage	Why it matters
Supplies electricity and gas	Useful for dual fuel business procurement
Strong large-user focus	Good fit for industrial and commercial customers
Fixed contracts available	Supports budget certainty
Flexible contracts available	Helps manage wholesale market exposure
Renewable electricity options	Supports Scope 2 and sustainability reporting
Renewable gas certificates	Useful for businesses with gas emissions targets
PPA capability	Supports stronger renewable procurement strategies
In-house trading desk	Gives access to market insight and risk support
Published deemed/default rates	Provides some pricing transparency
Strong supply volumes	Indicates a significant non-domestic supply business

Cons

Disadvantage	Why it matters
No public contracted rate table	Hard to compare without a quote
Less suited to microbusinesses	Smaller firms may prefer simpler suppliers
Deemed/default rates are high	Should not be used as long-term tariffs
Pass-through charges can apply	Final costs may vary
Limited public review data	Customer service is harder to assess from reviews
Contract complexity	Larger users may need legal and procurement review
PPA structures need expertise	Not suitable for every business
Green claims need documentation	Businesses should keep certificate evidence
Flexible procurement requires governance	Poor timing can increase costs

How to get a Brook Green Supply quote

To get an accurate Brook Green Supply quote, businesses should prepare:

Information needed	Why it matters
Company name	Required for account and credit checks
Site address	Pricing is site-specific
MPAN	Identifies the electricity meter
MPRN	Identifies the gas meter
Annual electricity consumption	Main driver of power pricing
Annual gas consumption	Main driver of gas pricing
Half-hourly data	Important for larger electricity users
Current supplier	Needed for switching
Current contract end date	Avoids termination and renewal issues
Current unit rates	Helps benchmark the quote
Current standing charges	Needed for full annual cost comparison
Preferred contract length	Affects pricing and risk
Fixed or flexible preference	Determines procurement structure
Renewable requirements	Needed for REGO, RGGO or PPA options
Multi-site list	Required for portfolio pricing
Credit information	May affect terms
Broker details	Relevant if a consultant is managing the tender

The most important step is to compare the full annual cost, not just the unit rate. For larger users, pass-through charges and volume assumptions can make a major difference.

What to ask Brook Green Supply before signing

Before agreeing a Brook Green Supply contract, ask:

1. Is the quote fixed, flexible or partly pass-through?
2. What is the electricity unit rate for each meter?
3. What is the gas unit rate for each meter?
4. What daily charges apply?
5. Are non-commodity costs fixed or passed through?
6. Are DUoS and TNUoS included?
7. Is BSUoS fixed or passed through?
8. Are Capacity Market and CfD costs included?
9. Are prices excluding VAT and Climate Change Levy?
10. What volume tolerance applies?
11. What happens if usage changes materially?
12. Is renewable electricity included?
13. Are REGOs included?
14. Is renewable gas backed by RGGOs?
15. Is the supply linked to a PPA?
16. What certificate evidence will be provided?
17. Are broker commissions included?
18. What credit support is required?
19. What happens at the end of the contract?
20. How can the business avoid default rates?
21. Who will manage the account?
22. What billing and data portal access is included?

For a large user, these questions can be worth thousands or even hundreds of thousands of pounds over the life of a contract.

Brook Green Supply alternatives

Businesses considering Brook Green Supply may also want to compare:

Supplier type	Alternatives to consider
Large commercial suppliers	Drax, SSE Energy Solutions, TotalEnergies, EDF, E.ON
Green business suppliers	Good Energy, Ecotricity, 100Green, Bryt Energy
Flexible procurement suppliers	Axpo, SmartestEnergy, Drax, Statkraft
Gas-heavy business suppliers	Corona Energy, SEFE Energy, TotalEnergies, Crown Gas & Power
SME suppliers	British Gas, EDF, E.ON Next, Octopus Energy, Yu Energy
PPA providers	Axpo, Drax, EDF, SmartestEnergy, Statkraft
Broker-led comparison	Bionic, Love Energy Savings, Utility Bidder and other commercial brokers

The right comparison depends on whether the business wants low-cost supply, renewable credibility, gas coverage, flexible procurement or PPA-backed energy.

Is Brook Green Supply good value?

Brook Green Supply may offer good value for the right business, but this cannot be judged from public contracted tariff tables because those rates are not published.

For larger businesses, value depends on much more than the headline unit rate. A good Brook Green Supply contract may offer benefits such as risk management, better procurement timing, renewable certificate options, data visibility, PPA access and a tailored contract structure.

For small businesses, the value test is simpler: does the total annual cost beat or match other SME business energy quotes, and are the contract terms easy to understand?

The deemed and default rates should not be used as evidence that Brook Green Supply is cheap or expensive as a contracted supplier. They are fallback rates and are likely to be more expensive than a formal agreement.

Final verdict: should your business choose Brook Green Supply?

Brook Green Supply is a strong supplier to consider if your business has significant electricity or gas consumption, multiple sites, sustainability goals or a need for fixed, flexible or PPA-linked procurement. It is particularly relevant for industrial and commercial users that need more than a basic SME tariff.

It is less suitable for very small businesses that want instant online prices, a simple dual fuel quote and minimal contract complexity. The lack of public contracted pricing means businesses need to request a quote and compare it carefully.

For EnergyCosts.co.uk readers, the practical recommendation is to include Brook Green Supply in a comparison if your business is a larger SME, multi-site operator, public sector organisation, manufacturer, data centre, logistics firm or energy-intensive user. Compare the full annual cost, check whether non-commodity charges are fixed or passed through, confirm the renewable evidence, and avoid falling onto deemed or default rates.

FAQ