May 2021

About Project

Renonbill is a financing project supported by the European Union's Horizon 2020 programme. Renonbill is projected to increase the renovation rate for energy saving projects in Europe by 2-3 times using on-bill calculations and simulations to quantify cashflow and risk of a planned renovation project. This will contribute to the EU's long-term goal of lowering greenhouse gas (GHG) emissions by 80% by 2050.

What we did

Our customer requested assistance rewriting an Excel application into a more modern application with multi-user capability, a modern GUI, and a database. Understanding the legacy code and extracting significant mathematical formulas and integrating them into the new, re-written program was the main challenge in this project. TDD was utilized to guarantee that computations were appropriately integrated into the new application. We optimized the application to make the calculations run faster. The frontend of our new app was built with ReactJS, and the backend was built with Python/Django.

Additional Illustrations