April 7, 2026
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Best Same-Day Business Loan Lenders for the Clean Energy Industry

Discover the best same-day business loan lenders specialising in the clean energy sector. Get fast, reliable funding options to grow your sustainable business today.
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Best Same-Day Business Loan Lenders for the Clean Energy Industry
Abdus-Samad Charles
Finance Writer

Abdus-Samad Charles is a finance writer and the Head of Content at Funding Agent, with four years’ experience creating practical, easy-to-follow, SEO-informed guidance for UK small and medium-sized businesses. He specialises in turning complex funding topics, like eligibility criteria, documentation requirements, approval timelines, and lender expectations, into clear, research-led resources that are easy to find and help business owners make confident, informed decisions.

For UK franchise buyers and operators, this guide compares loan periods and amounts, APRs, and terms across leading providers, with a focus on eligibility and fit. Amounts that could not be verified are left blank, prices accurate as of 2026-03-30.

1. White Oak UK

White Oak UK offers flexible business loans focussed on improving cash flow and supporting growth. It is suitable for franchise buyers and SMEs looking for swift funding decisions and clear loan terms. The provider offers same-day funding options with a focus on straightforward eligibility and predictable repayment structures.

Loan Details

  • Min Amount: £10,000
  • Max Amount: £500,000
  • Min APR: 0%
  • Max APR: 0%
  • Loan Duration: 6 to 72 months ⌛

Services & Industries

  • Finance Types: Unsecured business loans, Working capital loans
  • Industries: Clean Energy, SMEs

Pros

  • Fast approval
  • Same-day funding available

Cons

  • Requires strong business credit

Sources: Source

2. Novuna Business Finance

Novuna Business Finance provides business loans with an emphasis on flexible, fast funding mainly for service-based businesses. It suits franchise buyers and SMEs seeking diverse financial products with adjustable repayment options. The loans often require evaluation of credit conditions and demonstrate adaptability over variable terms.

Loan Details

  • Min Amount: £5,000
  • Max Amount: £250,000
  • Min APR: 0.5%
  • Max APR: 15%
  • Loan Duration: 3 to 60 months ⌛

Services & Industries

  • Finance Types: Unsecured business loans, Asset finance
  • Industries: Clean Energy, Service-based businesses

Pros

  • Competitive rates
  • Flexible repayment terms

Cons

  • May have higher requirements during downturns

Sources: Source

3. Triodos Bank

Triodos Bank focuses on financing projects with social, cultural, or environmental benefits, including renewable energy. It is suitable for borrowers requiring funding for sustainable and impactful initiatives. The bank offers tailored loan structures prioritising environmental outcomes over conventional risk models.

Loan Details

  • Min Amount: £50,000
  • Max Amount: £1,000,000
  • Min APR: 0%
  • Max APR: 0%
  • Loan Duration: 12 to 120 months ⌛

Services & Industries

  • Finance Types: Unsecured business loans, Project finance
  • Industries: Renewable energy, Environmental technology

Pros

  • Focus on sustainability
  • Custom loans for green projects

Cons

  • Interest rates can be higher depending on risk

Sources: Source

4. British Business Bank

British Business Bank acts as a government-backed lender focused on small UK businesses and start-ups. It is suitable for borrowers seeking fixed interest loans or start-up financing with straightforward eligibility. Loans are typically direct, providing certainty over rates and repayment terms.

Loan Details

  • Min Amount: £2,000
  • Max Amount: £25,000
  • Min APR: 6%
  • Max APR: 6%
  • Loan Duration: 12 to 60 months ⌛

Services & Industries

  • Finance Types: Start-up loans, Fixed interest loans
  • Industries: Start-ups, Clean Energy

Pros

  • Government-backed
  • Fixed interest rates

Cons

  • Small maximum loan size

Sources: Source

5. Sustainable Energy Finance

Sustainable Energy Finance specialises in loans for the energy sector, focusing on tailored solutions for energy-related businesses. It is suited to franchise buyers and companies needing customised financing for large-scale or specific energy projects. The provider emphasises sector knowledge and structured terms, with potential qualification requirements.

Loan Details

  • Min Amount: £10,000
  • Max Amount: £500,000
  • Min APR: 0%
  • Max APR: 0%
  • Loan Duration: Unknown ⌛

Services & Industries

  • Finance Types: Secured business loans, Project finance
  • Industries: Energy, Clean Energy

Pros

  • Tailored financing for energy sector
  • Experience in large-scale projects

Cons

  • Strict qualification criteria

Sources: Source

6. EvoEnergy

EvoEnergy offers green loans targeting businesses engaged in solar and renewable energy projects. It is suitable for companies seeking to reduce initial costs while aiming for long-term sustainability savings. The provider delivers flexible terms with a focus on environmental impact and energy sector expertise.

Loan Details

  • Min Amount: £10,000
  • Max Amount: £1,000,000
  • Min APR: 0%
  • Max APR: 0%
  • Loan Duration: 12 to 120 months ⌛

Services & Industries

  • Finance Types: Green loans, Lease-to-own
  • Industries: Renewable energy, Sustainability

Pros

  • Supports sustainability goals
  • Expertise in solar financing

Cons

  • APR details not clearly disclosed

Sources: Source

7. Swoop Funding

Swoop Funding acts as a broker connecting businesses with multiple funding sources including loans. It suits franchise buyers and SMEs looking for rapid access to finance through various loan types. The platform offers competitive terms while relying on brokered relationships and diverse lender networks.

Loan Details

  • Min Amount: £5,000
  • Max Amount: £200,000
  • Min APR: 4%
  • Max APR: 15%
  • Loan Duration: 3 to 36 months ⌛

Services & Industries

  • Finance Types: Unsecured business loans, Equipment financing
  • Industries: Small and medium enterprises, Clean Energy

Pros

  • Wide range of funding options
  • Quick approval

Cons

  • Acts as a broker

Sources: Source

8. GENR8 Energy

GENR8 Energy focuses on green loans and financing for solar energy and clean technology initiatives. It is designed for businesses prioritising renewable energy projects and environmental impact. The loan offerings include a range of flexible terms geared towards sustainability investments.

Loan Details

  • Min Amount: £25,000
  • Max Amount: £500,000
  • Min APR: 0%
  • Max APR: 0%
  • Loan Duration: 24 to 120 months ⌛

Services & Industries

  • Finance Types: Green loans, Equipment loans
  • Industries: Energy, Clean Technology

Pros

  • Focused on green energy
  • Flexible financing options

Cons

  • Limited to energy-related projects

Sources: Source

9. Barclays Green Loan

Barclays Green Loan offers loans to support environmental and sustainability initiatives within UK businesses. It is suitable for borrowers wanting flexible terms for green upgrades and projects. The lender provides competitive APRs alongside tailored sustainability-focused financial products.

Loan Details

  • Min Amount: £5,000
  • Max Amount: £500,000
  • Min APR: 2.9%
  • Max APR: 10.9%
  • Loan Duration: 12 to 60 months ⌛

Services & Industries

  • Finance Types: Green loans, Commercial loans
  • Industries: Environment, Green Technology

Pros

  • Competitive APR
  • Tailored solutions for sustainability

Cons

  • Can have strict credit requirements

Sources: Source

10. HSBC Green Loan

HSBC Green Loan provides financing solutions targeting eco-friendly and sustainable business projects and equipment. It is suitable for businesses looking to fund a variety of green initiatives with flexible loan options. The provider balances access to funding with environmental objectives across different industry sectors.

Loan Details

  • Min Amount: £5,000
  • Max Amount: £1,000,000
  • Min APR: 3%
  • Max APR: 12%
  • Loan Duration: 6 to 72 months ⌛

Services & Industries

  • Finance Types: Green loans, Asset finance
  • Industries: Environmental projects, Green Technology

Pros

  • Encourages sustainability
  • Covers a variety of green projects

Cons

  • May require collateral

Sources: Source

How to choose

For clean energy franchise buyers seeking same-day business loans, focus on lenders offering quick approval and clear eligibility criteria. Prioritise flexible repayment options that fit your cash flow and project timelines. Consider if collateral or security is required, as this impacts loan accessibility. Evaluate lender transparency on fees and early repayment terms. Using brokers can widen access but check terms carefully. Align loan size and APR with your budget and growth plans for optimal fit.

Conclusion

Choosing the right provider depends on your funding needs and business model. Banks often provide structured loans with predictable terms suited for established franchises and larger loans. Brokers offer access to multiple lenders and quicker decisions but may involve intermediary fees. Specialists focus on sector-specific needs, such as clean energy, often providing tailored terms with varying levels of flexibility. Always verify current costs, terms, and eligibility before applying. For start-ups and smaller franchises, consider government-backed loans like those detailed on Funding Agent.

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FAQs

What is a same-day business loan?
Which lenders offer same-day loans for clean energy businesses?
What are the eligibility criteria for same-day loans in the clean energy sector?
How much can I borrow with same-day business loans?
Are there any special loan terms for clean energy businesses?
How do I apply for a same-day business loan for my clean energy company?

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1White Oak UKWhite Oak UK provides flexible business loans to help with cash flow and growth, offering instant eligibility checks and same-day funding decisions.£10,000–£500,000; 0%–0% APR; 6 to 72 months
2Novuna Business FinanceNovuna offers business loans with fast, flexible funding tailored for service-based businesses through its comprehensive suite of financial products.£5,000–£250,000; 0.5%–15% APR; 3 to 60 months
3Triodos BankTriodos Bank provides finance for projects and organisations that have a positive social, cultural or environmental impact, including renewable energy.£50,000–£1,000,000; 0%–0% APR; 12 to 120 months
4British Business BankA development bank dedicated to making finance markets work better for smaller businesses across the UK, offering direct loans up to £25,000.£2,000–£25,000; 6%–6% APR; 12 to 60 months
5Sustainable Energy FinanceSustainable Energy Finance specializes in providing loans and financial solutions specifically tailored for the energy sector.£10,000–£500,000; 0%–0% APR; Unknown
6EvoEnergyEvoEnergy provides green loans for businesses focusing on solar and renewable projects, lowering upfront costs and boosting long-term savings.£10,000–£1,000,000; 0%–0% APR; 12 to 120 months
7Swoop FundingSwoop Funding connects businesses with funding sources including loans, offering fast access to financing with competitive terms for SMEs.£5,000–£200,000; 4%–15% APR; 3 to 36 months
8GENR8 EnergyGENR8 Energy provides green loans and finance options to support solar energy projects and other clean technologies for businesses.£25,000–£500,000; 0%–0% APR; 24 to 120 months
9Barclays Green LoanBarclays Green Loan supports businesses in making environmental upgrades and sustainability-focused investments through flexible loans.£5,000–£500,000; 2.9%–10.9% APR; 12 to 60 months
10HSBC Green LoanHSBC provides green loans to businesses looking to fund eco-friendly and environmentally sustainable projects and equipment.£5,000–£1,000,000; 3%–12% APR; 6 to 72 months
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