So Energy is a UK-based renewable energy supplier founded in 2015 that provides 100% green electricity at affordable prices, combining transparency, sustainability, and customer choice. With a unique model that lets customers vote on the energy mix—wind, solar, hydro, or biomass—So Energy stands out for its eco-friendly commitment, competitive tariffs, and customer-first approach. Supported by ESB since 2021, the company has grown to serve hundreds of thousands of households, offering smart meters, solar solutions, and EV-friendly tariffs, while maintaining excellent ratings for service and value.

Introduction

The energy industry has undergone a dramatic transformation over the last decade. With growing environmental awareness, rising energy prices, and pressure to meet climate targets, consumers are demanding more sustainable and affordable energy options. So Energy has emerged as one of the most promising players in this transition. Founded in 2015, the company has built its reputation on 100% renewable energy, fair pricing, and exceptional customer service.

In this article, we’ll take a deep dive into So Energy’s origins, mission, services, customer experience, and future outlook. By the end, you’ll understand why So Energy is redefining what it means to be a modern energy supplier in the UK.

The Origins of So Energy

A New Approach to Energy Supply

So Energy was founded with a simple mission: to make renewable energy accessible and affordable for everyone. The founders recognized that traditional energy companies often prioritized profit over sustainability, leaving customers with high bills and little transparency.

From the start, So Energy sought to challenge the status quo by combining renewable power with competitive pricing and a commitment to honesty. Unlike many competitors, they promised no hidden fees, straightforward tariffs, and a clear explanation of where their energy comes from.

Partnership with ESB

In 2021, So Energy merged with ESB Energy, part of Ireland’s largest energy provider. This partnership gave So Energy access to deeper resources, financial stability, and decades of expertise—without sacrificing its independent identity. The merger allowed the company to scale up while maintaining its customer-first, renewable-focused ethos.

100% Renewable Energy Supply

How So Energy Sources Power

All electricity supplied by So Energy is 100% renewable, verified by Renewable Energy Guarantee of Origin (REGO) certificates. Customers even get the unique opportunity to vote annually on the energy mix. Options include:

• Wind Power

• Solar Power

• Hydroelectric Power

• Biomass Energy

This democratic approach ensures customers feel involved in the sustainability journey, while reinforcing So Energy’s transparency pledge.

The Benefits of Green Energy

Choosing 100% renewable energy isn’t just about protecting the planet. It also:

• Reduces carbon footprints for households.

• Supports long-term energy security.

• Encourages investment in clean technologies.

• Helps the UK meet its net-zero targets.

So Energy’s strategy aligns perfectly with these benefits, making it one of the most future-proof energy suppliers in the market.

Tariffs and Pricing

Competitive Options for Every Household

So Energy offers both fixed-rate and variable tariffs, consistently ranking among the most affordable suppliers in the UK.

Fixed Tariffs

• Lock in prices for 12–24 months.

• Protect households from market volatility.

• Ensure stable budgeting.

Variable Tariffs

• Track the energy price cap set by Ofgem.

• Offer flexibility for customers who may switch often.

EV and Smart Solutions

Recognizing the rise of electric vehicles, So Energy introduced EV-friendly tariffs that provide cheaper electricity during off-peak hours. These tariffs encourage sustainable transport while cutting charging costs for EV owners.

Additionally, the company promotes smart meter installations, helping customers monitor usage in real time and save money by adjusting consumption habits.

Customer Service and Reputation

Ratings and Recognition

Customer service is at the heart of So Energy’s brand identity. The company consistently scores high in satisfaction surveys and holds an “Excellent” rating on Trustpilot.

Awards and recognition include:

• Which? Recommended Supplier in multiple years.

• Top rankings from Citizens Advice for customer service.

• Uswitch Customer Satisfaction Awards.

Real Customer Experiences

While the majority of customers praise So Energy for its transparency and affordability, some reviews highlight challenges with billing clarity or delays in customer support. However, these issues are comparatively minor when measured against the overwhelmingly positive feedback.

Workplace Culture and Values

An Award-Winning Employer

So Energy’s commitment to people extends beyond customers. The company has been recognized by The Sunday Times as one of the Best Places to Work in 2024 and 2025, thanks to its focus on employee wellbeing, diversity, and engagement.

Community and Inclusivity

Internal initiatives include:

• Mental health support through platforms like Unmind.

• Affinity groups to support diversity and inclusion.

• Volunteer programs and community events.

• Flexible work arrangements for staff.

By treating employees well, So Energy ensures its workforce is motivated and aligned with its sustainability mission.

Expanding Beyond Energy Supply

Solar and Heat Solutions

So Energy isn’t just a supplier—it’s becoming a clean energy enabler. Through partnerships, it offers affordable solar panel installations, home battery storage, and heat pump options.

This approach helps households move towards energy independence, reducing reliance on the grid and cutting carbon emissions further.

Export Tariffs

Customers with solar panels can benefit from export tariffs, selling surplus energy back to the grid. This creates a circular energy economy where households both consume and produce renewable power.

So Energy vs. Competitors

Standing Out in a Crowded Market

The UK has several renewable-focused suppliers, including Octopus Energy and Good Energy. What sets So Energy apart is its balance of affordability and transparency.

Octopus Energy excels in technology and innovation but often has more complex tariffs.

Good Energy has a strong green focus but is generally more expensive.

So Energy offers the best of both worlds: simple tariffs, customer choice, and green credentials at competitive prices.

Challenges and Opportunities

Market Pressures

The UK energy market is volatile, with wholesale price fluctuations creating difficulties for suppliers. Many smaller firms collapsed during the 2021–22 energy crisis. However, So Energy’s partnership with ESB has provided the resilience to weather such storms.

Future Growth

Looking ahead, opportunities for So Energy include:

• Expanding EV-specific tariffs as electric car adoption grows.

• Increasing investment in home solar and battery storage.

• Playing a bigger role in the UK’s transition to net zero by 2050.

Why Choose So Energy?

So Energy appeals to consumers who want:

• 100% renewable electricity.

• Transparent, fair pricing.

• A company that values both customers and employees.

• Innovative solutions like EV tariffs and solar packages.

• A trustworthy supplier with excellent ratings.

For households looking to combine affordability with sustainability, So Energy offers one of the best solutions in the UK.

Conclusion

Since its founding in 2015, So Energy has carved out a unique space in the UK’s energy landscape. By delivering 100% renewable electricity, empowering customers with choice, and maintaining competitive prices, the company demonstrates that sustainability and affordability can go hand in hand.

Backed by ESB, recognized for excellent service, and expanding into solar, EV, and smart solutions, So Energy is more than just a utility provider—it’s a partner in building a cleaner, greener future.

In a world where climate change and rising energy costs dominate public concern, So Energy’s model provides a roadmap for the future of energy: renewable, transparent, customer-focused, and affordable.