The current global energy system faces enormous challenges that are pushing it to the brink of collapse. Imagine the electricity grid as a 1950s highway system struggling to cope with the demands of modern traffic – where half the cars drive backwards (solar panels on roofs), some randomly stop to refuel (electric vehicles), and there are three times as many cars on the road (AI data center demands). Such a system is not only inefficient, but also vulnerable to cyberattacks, which have tripled in four years.

Evidence of these problems is that Germany wasted 1,400 GWh of solar power in 2024 because their grid couldn't handle it, while California loses 5-6 % of its electricity just by moving it. The world faces an annual climate finance gap of $3-5 trillion, with most capital tied up in the bureaucratic and opaque structures of a traditional system that was not designed for open participation. Despite an expected $3.3 trillion in investment in clean energy technologies this year, the infrastructure remains dysfunctional.

Regenerative Finance (ReFi) and Decentralized Physical Infrastructure (DePIN) Enter, two interconnected spheres of Web3 companies that offer a new approach. ReFi is a climate-conscious decentralized finance (DeFi) space that uses DeFi and Web3 tools to fund projects that restore the environment, improve social equity, and create sustainable economic systems. It ensures that capital flows to activities that regenerate natural resources, rather than deplete them. DePIN, while already on the radar of crypto investors, serves as the infrastructure for ReFi projects. "ReFi funds the mission; DePIN lays the tracks for its deployment," pool resources. Together, they enable everyone to own, operate, and benefit from the expansion of clean energy. Instead of sacrificing profits for the planet, ReFi projects ask: What if climate change was profitable?

DePIN's four innovative approaches to solving energy problems:

• Powerledger: Founded in 2016, the company is building the infrastructure to enable homes and businesses to track, trade and monetize clean energy in real time. It is addressing the gap between growing clean energy production and aging grids. The TraceX platform recently reached 1.2 million monthly renewable energy certificate trades. Co-founder Dr. Jemma Green highlights that "If we want clean energy to be truly resilient, auditable, and accessible to all, blockchain must be part of the foundation".
• DeCharge: It seeks to decentralize EV charging by turning parking spaces into revenue-generating public chargers, which could pay for itself within 10 months. Owners can earn passive income through on-chain rewards. With over 300 chargers deployed globally, DeCharge is targeting 30,000 units. CEO Mohan Ponnada explains the focus on "organic growth driven by community," inspired by Airbnb's monetization of unused real estate.
• Sourceful: The goal is to turn existing home energy devices, such as solar panels, batteries, and smart meters, into a coordinated infrastructure. Smart gateways automatically buy cheap electricity and sell it at peak prices, aggregating thousands of homes into virtual power plants. They currently operate more than 400 active nodes in 30 countries.
• ReFi Hub: It calls itself the “home of climate finance” and connects DeFi capital with clean energy projects through tokenized infrastructure. It enables fractional ownership of solar farms and EV stations, allowing anyone to finance projects and earn returns from real energy revenues. “Through Solana, we are enabling anyone to own pieces of solar panels and EV chargers, delivering real returns,” explains founder Christian Chegne.

Is ReFi real? While it’s still early days for ReFi, the numbers are encouraging. Early adopters are installing hardware, with some reporting revenue and contributing to sustainable infrastructure development. However, scaling remains an issue – pilot projects with hundreds of participants are different from coordinating millions. Energy is also heavily regulated globally, which can pose challenges to monopolies or restrictive government policies.

Despite these obstacles, ReFi projects are betting that decentralization brings benefits that outweigh the risks. The ReFi approach represents a radical departure from typical thinking about climate action, which often focuses on sacrifices (driving less, using less energy, accepting higher costs). Instead, ReFi emphasizes opportunities: why not make money building the clean energy system we need anyway to make it happen faster? Instead of relying on government mandates, ReFi creates market incentives, and instead of waiting for corporate infrastructure to be built, it relies on crowdsourcing.

The goal is not for blockchain to solve climate change on its own, because it cannot. Rather, the question is whether blockchain-based coordination can mobilize resources faster and more efficiently than traditional approaches. Spring

Glossary of key terms

• Regenerative Finance (ReFi): A climate-conscious decentralized finance (DeFi) field that uses Web3 tools to finance projects that restore the environment, improve social justice, and create sustainable economic systems.
• Decentralized Physical Infrastructure (DePIN): Projects using blockchain to build, operate, and maintain decentralized physical infrastructure, such as clean energy grids or EV charging stations.
• Decentralized Finance (DeFi): Blockchain-based financial applications that operate without intermediaries such as banks and use smart contracts.
• Web3: A new generation of the internet built on decentralized technologies like blockchain, which promises greater user control and transparency.
• Tokenization: The process of transferring rights to an asset or part of an asset into a digital token on the blockchain, allowing for fractional ownership and easier trading.
• Virtual Power Plants (VPP): A network of distributed energy sources (such as rooftop solar panels, batteries, smart meters) aggregated and coordinated by software, operating as one large power plant.
• Carbon credits: Tradable permits that allow the holder to emit one ton of carbon dioxide. Criticized for potential for fraud and lack of real impact.
• ESG investing: Investing that considers environmental, social and governance factors in addition to financial returns. Sometimes criticized for "greenwashing."
• Greenwashing: A tactic in which a company or organization makes misleading claims in order to appear more environmentally conscious than it actually is.
• Saltworks: A high-performance blockchain platform known for its speed and low transaction fees, often used for DeFi and Web3 projects.
• Powerledger: A blockchain-based ReFi project that enables peer-to-peer energy trading and tracking of renewable resources.
• DeCharge: ReFi project that decentralizes EV charging through the sharing of charging stations in private spaces.
• Sourceful: ReFi project focused on coordinating home energy devices (solar, batteries, smart meters) into virtual power plants.
• ReFi Hub: A ReFi project that tokenizes clean energy infrastructure to enable fractional investments and yielding returns on real assets.
• Coordination curve: A term used to describe the challenges in effectively coordinating millions of individual energy assets and decisions within a distributed energy system.