Welcome to Extensible Energy
Headquartered in Oakland, California, Extensible Energy was founded in 2010 and is led by John Powers, an energy economist and software entrepreneur, and Ari Halberstadt, a solar software architect and engineer.
Our mission is to promote the expansion of the commercial solar market through developing intelligent software that is always adapting with energy, technology, data, and the grid.
The ExE Team
Co-founder & CEO
Experienced entrepreneur; 25+ years of energy experience: utilities; energy consulting; economist, MA
Director of Engineering
15 years software architecture experience: software architect, Agile trained, NRG Home Solar software engineering, energy resources engineer, MS
Technical Buildings and Control Expert
10 years HVAC Design & Engineering experience including: modeling and controls engineer, Model Predictive Control, Mechanical Engineering PhD
Co-founder & CTO
20 years of software and energy experience: software engineer & cloud computing architect; solar energy expert, MS/MBA
Director of Products
10 years clean energy product and finance experience: solar+storage product development, venture capital, investment banking, MS
Data Scientist
Efforts include Antarctic neutrino experiments, gamma-ray-burst observatories in the US, a Kuiper belt observatory in Taiwan, and HIV experiments in San Francisco.
Our Values
SMART
When it comes to load flexibility and demand charge management challenges for solar and storage, we will always be improving our solutions.
SIMPLE
Our software and services are always easy to install and nearly invisible. Customers should only notice us when they see how we’ve reduced their utility bills.
ADAPTABLE
Our software is adaptable in real-time, and so are we. We’ll happily adapt to new technology, rates, markets, policies, and opportunities.
TRUSTWORTHY
You can trust us to deliver on our promises. Whatever we do, we’ll always make it right.
DYNAMIC
We are energetic, always moving forward, always improving, always looking for new opportunities to deliver more.
DATA-DRIVEN
Data is good. Harnessing and using data improves our products, our business, and our vision for transitioning the world to 100% clean energy.