In an era defined by the urgent need to reduce carbon emissions and embrace sustainable practices, businesses are increasingly turning to renewable energy solutions. However, this path is not always straightforward, especially when considering the financial and operational challenges associated with adopting new technologies such as energy management software. This is where Power Purchase Agreements (PPA) may provide a desirable alternative, offering a compelling framework that combines environmental impact with economic viability. 

PPAs represent a strategic approach to renewable energy procurement, allowing businesses to leverage fully maintained CHP (Combined Heat & Power) and PVA (Photovoltaic Assembly) units without the burdens of upfront capital investment or ongoing operational expenses. At ARO, we believe that sustainability should be both accessible and effective with PPAs providing a pathway to scalable and flexible renewable energy solutions. 

ARO’s offering

What sets our PPA offering apart is the ability to offer businesses a hassle-free way to transition to renewable energy, with zero upfront capital expenditure (CapEx) and no ongoing operational expenses (OpEx). This model not only makes renewable energy accessible to businesses of all sizes, but also provides a predictable and stable source of clean energy, contributing to long-term sustainability goals.

To ensure the viability of this offering, we partner with Orezten who utilise combined heat and power generators, solar PV systems and EV chargers to significantly lower energy costs, increase energy capacity and reduce your carbon footprint. Their outlook towards equipping businesses with long-term energy security guarantees that our customers have access to a tailor-made solution to deliver both cost savings and long-term carbon reduction goals.

Tailoring renewable energy solutions

One of the most compelling aspects of PPAs for CHP and PVA systems is their ability to tailor renewable energy solutions to meet the specific needs and sustainability objectives of businesses. Unlike traditional business energy procurement methods, which offer limited flexibility, our PPAs empower businesses to customise their strategies based on factors such as energy demand, budget constraints, and environmental goals.

With PPAs, businesses have the flexibility to choose the right mix of CHP and PVA systems to optimise energy generation and utilisation. Whether this means installing a fully maintained CHP unit to provide reliable on-site power and heat or deploying a fully maintained PV unit to harness clean solar energy, PPAs offer a versatile and adaptable approach to sustainable energy solutions.

By tailoring renewable energy solutions through PPAs, businesses will not only meet their immediate energy needs, but also future proof their operations against changing market dynamics and evolving sustainability requirements.

Achieving energy security

In addition to providing scalability and flexibility, our PPAs offer businesses a crucial element for long-term sustainability: energy security. By adopting a PPA for CHP and PV systems, businesses gain access to a stable and predictable source of renewable energy, reducing their dependence on volatile fossil fuel markets and grid-supplied electricity. It is important to safeguard against energy price fluctuations and regulatory changes, and we are mitigating risks associated with traditional business energy procurement methods. This long-term protection ensures stability in energy costs, allowing businesses to plan and budget effectively while minimising financial uncertainty.

The on-site generation capabilities, reduced vulnerability to grid disruptions and power outages are also worth mentioning. This resilience is invaluable for maintaining business continuity and ensuring operations remain uninterrupted, even in times of crisis.

Zero CapEx, Zero OpEx: The Financial Advantage

PPAs eliminate the need for upfront capital expenditure (CapEx) typically associated with purchasing and installing renewable energy systems. This means that businesses can access fully maintained CHP and PV units without the initial financial outlay, making renewable energy solutions accessible to businesses of all sizes.

Additionally, PPAs alleviate the ongoing operational expenses (OpEx) associated with owning and maintaining renewable energy systems. This meant that the renewable energy provider assumes responsibility for the operation and maintenance of the CHP and PV units, ensuring optimal performance and reliability throughout the agreement.

By removing the financial barriers to renewable energy adoption, PPAs enable businesses to save costs from day one, while driving sustainability goals forward.

Reducing costs, reducing emissions

Beyond the financial advantages, PPAs for CHP and PV systems offer substantial environmental benefits, making them a compelling choice for businesses committed to sustainability. By leveraging clean and renewable energy sources, businesses can significantly reduce both costs and emissions associated with traditional energy sources.

The transition away from fossil fuels and towards cleaner energy alternatives should be the future envisaged by all businesses. By harnessing the unlimited power of the sun and utilising waste heat for onsite power generation, businesses can achieve substantial reductions in greenhouse gas emissions, while simultaneously cutting energy costs.


It is our belief that PPAs can not only make sustainable goals financially viable for businesses but will also enable them to transition away from fossil fuels and towards cleaner energy alternatives, thereby reducing their carbon footprint and environmental impact.

By leveraging PPAs, businesses can achieve energy security, reduce costs, and minimise their environmental footprint, all while contributing to a cleaner, greener future. PPAs empower businesses to customise renewable energy solutions tailored to their specific needs and sustainability objectives, providing a pathway to long-term sustainability and resilience.

At ARO, we’re committed to helping businesses navigate the complexities of achieving Net Zero by unlocking the full potential of PPAs for CHP and PV systems. With our expertise and innovative Net Zero solutions, we stand ready to support businesses in their journey towards sustainability, driving positive change and creating a brighter, more sustainable future for generations to come.

Learn more about ARO’s Net Zero Solutions.

Contact us today to learn more about how PPAs can revolutionise your business’s energy landscape and accelerate your sustainability goals.


What is a Power Purchase Agreement (PPA) for CHP and PV systems?

A PPA is a contract between a business and a renewable energy provider, where the provider installs, owns, and operates a CHP or PV system on the business’s premises. The business agrees to purchase the energy generated by the system at an agreed-upon rate over a specified period.

How do fully maintained CHP and PV units benefit businesses?

Fully maintained CHP and PV units, provided through PPAs, offer businesses hassle-free access to renewable energy without the burden of upfront capital expenditure (CapEx) or ongoing operational expenses (OpEx).

What are the advantages of a CHP Energy Power Purchase Agreement?

A CHP Energy PPA provides businesses with a reliable and efficient source of on-site power and heat, offering energy security, reduced costs, and minimized environmental impact.

What are the advantages of a PV Power Purchase Agreement?

A PV Power Purchase Agreement offers businesses access to stable and predictable solar energy, reducing reliance on volatile fossil fuel markets and grid-supplied electricity while providing long-term cost savings and environmental benefits.

What is meant by Zero CapEx and Zero OpEx in the context of PPAs?

Zero CapEx refers to the absence of upfront capital expenditure for businesses, while Zero OpEx indicates that ongoing operational expenses are covered by the renewable energy provider, making PPAs financially attractive for businesses.

How does a fully funded PPA protect businesses in the long term?

A fully funded PPA provides businesses with long-term protection against energy price fluctuations and regulatory changes, ensuring stable energy costs and mitigating financial risks.

Are PPAs transferable if a business relocates or undergoes ownership changes?

Yes, PPAs are fully transferable, allowing businesses to maintain their renewable energy agreements even if they relocate or experience changes in ownership.

How do PPAs help businesses reduce costs and emissions?

PPAs enable businesses to transition to clean and renewable energy sources, reducing both energy costs and carbon emissions associated with traditional fossil fuel-based energy generation.

What are the environmental benefits of PPAs for CHP and PV systems?

PPAs contribute to significant reductions in greenhouse gas emissions and other pollutants, helping businesses meet sustainability goals and enhance their environmental stewardship.