Utilizing various PPA models to achieve sustainability goals

Businesses leverage a variety of tools and practices to achieve sustainability goals. Although not a widely-used method, Power Purchase Agreements (PPAs) can be an effective way to achieve tangible sustainable energy goals. PPAs can be made in many different ways. Which PPA model is best fit for your business will depend on your organization’s size, pattern of energy consumption, and commitment to reducing environmental impact.

Becoming fully sustainable often involves sacrificing some cheaper but less clean alternatives. Appropriate PPAs avoid losses by managing the transition towards renewable energy with market levers. But what exactly is a PPA, and how can different models of PPAs help businesses achieve their sustainability goals?

What is a power purchase agreement (PPA)?

A Power Purchase Agreement (PPA) is a contract between a renewable energy provider and a business or utility. Under this agreement, the energy producer commits to supplying electricity at a fixed price over a set period. The PPA arrangement is instrumental in the development and financing of renewable energy projects by ensuring a stable revenue stream for developers and consumers.

Different PPA models

PPAs come in various forms, each designed to meet specific business needs and market conditions. The primary models include:

1. Physical delivery PPAs

These are perhaps the most intuitive arrangements. In a physical PPA, the business purchases renewable energy directly from a generator (like a wind or solar farm), with the energy physically delivered through the grid. Physical delivery PPAs are most often used by large companies with significant energy requirements as well as the infrastructure capacity to use the renewable power directly.

2. Virtual PPAs (VPPAs)

A VPPA is a financial agreement where no physical energy is delivered. Instead, the green energy broker sells the power into the wholesale market, and the business receives renewable energy certificates (RECs) that contribute to their sustainability targets. This setup is ideal for companies that do not have the capacity to take physical delivery of the energy but still want to support renewable energy projects. Kind of like paying for a person’s meal behind you in the drive-through, while it may seem less direct, VPPAs benefit the environment on a similar scale to the physical delivery of renewable energy.

3. Onsite PPAs

Onsite PPAs involve the installation of renewable energy systems, often solar panels, directly on the business’s premises. The generated power is used on-site. With the various models of solar power available, onsite PPAs are fit for large and small businesses. This suits businesses with adequate space and suitable energy consumption patterns to benefit from on-site generation. This also benefits the outward appearance of a business as visitors can visually see the business’s commitment to renewable energy.

4. Green tariffs

Green tariffs aren’t true PPA models. Green tariffs are programs offered by utilities that allow businesses to contribute to renewable energy projects directly and receive energy. This is similar to paying a little extra to offset your carbon emissions when purchasing flight tickets. The money doesn’t actually reduce the emission of the flight but instead contributes to a carbon sink project elsewhere. Green tariffs are best for businesses seeking a simpler way to purchase renewable energy without entering into a direct PPA with an energy producer.

Now that you’re familiar with a range of PPA models, let’s consider some specific renewable energy goals and how PPAs help deliver results.

Sustainability goals for businesses

Businesses may choose to tackle sustainability from various angles, including:

1. Carbon reduction: Lowering greenhouse gas emissions to mitigate climate change is the gold standard of sustainable energy goals.

2. Increasing energy efficiency: This hits two birds with one stone: reducing energy expenses and reduced emissions.

3. Boosting corporate social responsibility (CSR): Enhancing the company’s reputation by committing to sustainable practices. This includes making commitments to consumers and being transparent about where your energy comes from.

4. Meeting future emission targets or net zero goals: This can be internally motivated or brought on by government sustainability targets. Complying with these targets helps avoid potential fines.

5. Innovating new sustainable solutions: This ambitious sustainability goal can position the company as a leader in the sustainability space.

How different PPA models help achieve these goals

PPA models applicable to direct carbon reduction:

Physical delivery PPA: By sourcing electricity directly from renewable sources, businesses can significantly and directly cut their carbon footprint. This model ensures that the energy consumed is green, directly reducing reliance on fossil fuels.

VPPA: Even if the business cannot directly use renewable power, a VPPA allows it to purchase RECs, which certify that renewable energy has been produced on their behalf. This helps in offsetting carbon emissions.

Best PPA models for energy cost savings:

Onsite PPA: By generating renewable energy on-site, businesses can often reduce their dependence on the grid and save on energy costs. These savings can be substantial over time, especially as energy prices fluctuate.

PPA models that boost CSR:

VPPA: Engaging in VPPAs can be a powerful statement of commitment to sustainability. Businesses can publicize their support for renewable energy projects, enhancing their CSR profile.

PPA models applicable to net zero goals and regulatory compliance:

Physical and VPPA: Both models can help companies comply with renewable energy mandates and carbon reduction targets set by governments. By securing renewable energy sources, businesses ensure they meet legal requirements.

PPA models for innovative business:

Onsite PPA: Installing renewable energy systems on-site showcases a company’s commitment to innovation and leadership in sustainability. Work with green energy consultants to find out how you might adopt renewables in creative ways. It highlights proactive measures and investment in cutting-edge technology.

Incorporating PPAs into your sustainability strategy is like choosing the right tools for a renovation project. Each tool (or PPA model) has its specific function, and when used correctly, they collectively contribute to building a more sustainable industry.