Three Ways Blockchain Can Save Energy

cleantech startup ACEEE Intelligent Efficiency

How can blockchain save energy? Here are three possible ways.

Written by Ethan Rogers,, October 16, 2018.


Companies including Walmart and Maersk are already using blockchain to track products along a supply chain. The technology records every transfer and financial exchange. This reduces processing and administrative costs (which can add up to 20% of overall shipping costs) as well as product spoilage. By matching shippers with carriers, it may also increase equipment utilization and decrease fuel consumption. According to the American Trucking Association, truckers in the United States drive more than 29 billion miles a year with partial or empty truckloads.

A second blockchain application could spur the adoption of electric vehicles, which use considerably less energy than most gas-fueled vehicles. EVs need recharging to go long distances, and new software apps enable individuals to rent out their private charging stations. These apps use blockchain technology to record such peer-to-peer transactions. EV owners can use the rent revenue to cover the cost of their charging stations and cars, thus enabling more people to buy EVs and use less energy.

In a third application, energy service companies (ESCOs) are exploring ways to use blockchain to simplify the bookkeeping associated with energy performance contracts (EPCs). These companies help organizations such as schools, hospitals, and office buildings save energy by taking over many energy management responsibilities. They make investments and implement energy measures and, in exchange, get a share of the energy cost savings. EPCs are a cost-effective way for organizations that don’t have the necessary capital or technical expertise to implement their own energy savings measures to reduce their energy costs.

One challenge with EPCs is that they involve multiple parties—customers, ESCOs, utilities, and financial institutions—each of which keeps its own records of energy costs, savings, and expenses. As you can imagine, with so many different sets of books, there is the potential for errors and disagreements. The contracts can also be administratively expensive. Blockchain brings transparency, agreement, and trust through the shared ledger. ESCOs are exploring blockchains with smart contract features that integrate the rules for determining energy savings and the conditions for authorizing payments and penalties. These contracts will automatically release payments after the contract’s conditions are met. Such automation can reduce transaction costs, enabling it to serve smaller organizations—those not previously targeted because the savings were insufficient to cover the costs. The more facilities ESCOs engage, the more projects they will implement and the more energy savings they will achieve.

These three blockchain applications all address challenges in existing markets and have the potential to accelerate market growth. They may not be the most significant energy-saving applications, but because they’re already being piloted, we’ll soon see results. We’ll find out whether the buzz about blockchain is just hype, or if this technology can really deliver new levels of efficiency.

As you can tell, I enjoy discussing how technology affects people’s use of energy. Later this month, I will be speaking about blockchain at two events. On October 17, I will present at the World Energy Engineering Congress (WEEC) in Charlotte, North Carolina, and on October 26, I will be at the 2018 KEEA PA Energy Efficiency Conference in Harrisburg, Pennsylvania. If you are attending either event, I hope you will join the conversation.

Andrew Whitlock and Kelly Rohrer contributed to this post.

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