Carbon Accounting on Blockchain

The open source blockchain-carbon-accounting app is now deployed live on Avalanche Mainnet.  Use it to calculate and tokenize your emissions from utilities, travel,  shipping, and hundreds of other emissions factors.  

Try it out on the Avalanche Fuji Testnet at

Use it live on Avalanche at

Actionable Climate Investing

Open Climate Investing, our open source project to make climate investing relevant and actionable, is now released.  

Using a simple model, it calculates the market-implied climate risk of publicly traded stocks in the Energy industry.

Take a look at and see the open source book on climate investing.  

The Open Offsets Directory

The voluntary carbon offsets market has long been held back by a lack of transparency.  We believe the solution is a decentralized data common built with blockchain that encourages market participants to share their data.

A prototype using live data is now available at 

To learn more about voluntary carbon offsets market, see our research paper, partly funded by the Linux and Hyperledger Foundations.

From Energy to Emissions

This demo shows how we’re taking utility bills from Green Button XML and storing them on a permissioned data channel with Hyperledger Fabric.

This is an implementation of the audited emissions data channel, the first part of our Operating System for Climate Action.

To try it yourself, see our blockchain carbon accounting project on Github.

M&V Model Chart Example

Make M&V Believable Again

opentaps brings together data from utility meter and building equipment in one platform.  Advanced statistical models are included with opentaps and amazingly easy to build.
The result: Building managers, ESCO developers, and contractors all have access to the same data and models.  They can all see building-level energy use and detailed equipment performance to understand and verify energy savings.
By making both data and software openly available, M&V can bring together all parties and achieve greater energy efficiency, instead of being a source of disagreement and mistrust.  Read more about how we’re doing it.

For more information about opentaps Open Source ERP + CRM, please click here.