OpenEE turns energy efficiency and electrification into grid resources. 

Open source, secure and transparent, so you can have confidence in the results.

Efficiency is a Resource

Problem:  Efficiency and electrification don't meet the needs of emerging distributed energy markets.

Solution: Measure time and locational impacts, support pay-for-performance, and finance efficiency the way we finance grid infrastructure.

Let Data Drive

Problem: Efficiency and electrification are too expensive, complicated and slow to improve, with little feedback or transparency.

Solution: Rapid feedback, data-driven quality assurance, targeted optimization, and alignment of incentives.

Open Enterprise

Problem: Black-box methods and PDF evaluation reports years after the fact create lack of confidence.

Solution: 100% open source, with the modular architecture you need to support innovation and enterprise scalability.

OpenEE's time- and location-based resource curves provide unprecedented power to manage efficiency and electrification projects while helping markets pave the way toward a clean and stable distributed energy grid.

Enterprise OpenEE Platform

OpenEE provides a turnkey enterprise SaaS platform that enables robust and scalable EEmetering and analytics for utilities, aggregators, and regulators.

  • Cloud-based EEmetering for efficiency aggregators, program implementers, regulators and utilities.
  • Run analytics on monthly, daily and hourly energy consumption data.
  • Secure, turnkey, SaaS platform.
  • Scalable from a single project to millions of meters.
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Open Source OpenEEmeter

The OpenEEmeter engine democratizes normalized metered savings. Its open source code can be run by anyone, either locally or through integrated APIs.

  • Estimate changes in consumption locally without the need for servers or python experts.
  • Integrate the OpenEEmeter using APIs.
  • Transparent methods and code.
  • Community improvements to codebase and methods.
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Our Mission

OpenEE's mission is to transform efficiency and electrification into time and locational distributed energy resources. 

Regulate markets, not businesses

The utility of the future doesn’t have time to micromanage efficiency programs

The current model for energy efficiency is broken. It’s time to do something different. For too long, efficiency programs have been locked into costly, top-down approaches that take years to validate and provide ambiguous results.

Energy efficiency in its current form faces an existential problem. After forty years, investment in efficiency is still just a fraction of what it needs to be to meet our climate and energy goals. At the same time, given their costs, if current efficiency programs were truly to scale up, they would go bankrupt. Typically 30-50 percent of energy efficiency budgets are allocated to administrative costs instead of projects.

There is another way: open metering and real time pay-for-performance can unlock innovation by regulating markets, not businesses. With an agreed-upon system of weights and measures for efficiency, utilities and aggregators can procure energy savings just as they would bid for any other DER.

It’s time to stop forcing utilities and regulators to pick winners and let them do what they do best: enabling markets and protecting consumers.

No more black boxes

Let’s find out what actually works, what doesn’t, and why.

Proprietary, engineering-model black box approaches to EM&V focus on deemed savings models and measure attribution, requiring complex, ex post facto adjustments to account for variable results.

As a result, actual information on which efficiency providers are getting real, verifiable results is hard to come by.

By calculating efficiency on an open platform using only energy consumption and weather data as inputs, we can provide insights that were never before available. And the results are open, third-party verifiable and reproducible.

Grid 2.0 is coming

Will energy efficiency be able to meet the challenge?

In a world of smart energy grids and distributed, renewable resources, a system that measures efficiency based on monthly metering and calculates results years after the fact simply won’t cut it. To take its place as a true DER and meet the needs of Grid 2.0, efficiency will have to deliver savings at the times and places where it really matters.

Unleash the pent-up innovation of the efficiency industry

Innovators are ready to transform the efficiency industry. We just need to give them a platform to do it.

From smart thermostat makers to demand-response app developers to home zero-down home performance financiers, businesses are coming up with more and more innovative ways to drive efficiency investments and deliver energy savings.

What these companies need is a more streamlined access to markets that can value the benefit they’re creating along with the new revenue streams and larger demand that comes from a pay-for-performance, procurement-centered market.

With access to open measurement tools, these companies will be able to use data to make deploying and managing their businesses more efficient.

And by focusing on procuring measurable, verifiable savings at the meter and paying for actual performance, utilities and program managers can stop worrying about what measures will work, and allow the market to come up with efficiency innovations that none of us have even thought of yet.

The OpenEEmeter makes it possible

What is the OpenEEmeter?

The OpenEEmeter is an open source software platform for calculating energy efficiency. Using the meter, private companies, utilities, and regulators can all calculate the same level of savings for a given set of building efficiency projects.

The meter’s core stack is 100% open source licensed, meaning that anyone can download the code, inspect it and modify it.

Being open source makes third-party verification of methods easy, which in turn helps to validate results and ensure that all parties are working under the same set of assumptions. It also prevents vendor lock-in.

At the same time, anyone is free to build proprietary tools on top of the code.

The old way
The OpenEEmeter way
EM&V stuck in proprietary black boxes
OpenEEMeter: 100% Open Source.
Focus on deemed savings models and measure attribution requires complex, ex post facto adjustments to account for variable results.
Focus on normalized metered savings at the site level allows for a radically simplified and scalable approach.
Different proprietary models get different results depending on what factors are considered.
Uses only energy consumption and weather data as inputs; process and results are open, third-party verifiable and reproducible.
Time consuming - results often come years after the fact.
Outputs updated in real time as fresh data is received.
Typically 30-50% of energy efficiency budgets are allocated to administrative costs instead of projects.
The OpenEEmeter can be downloaded and used for free to calculate energy savings.
Long feedback loops require top-down micromanagement of projects by programs.
Quick feedback of reliable results reduces uncertainty and sets the stage for pay-for-performance programs.
Focus on monthly averages limits measurement to overall savings.
Using building smart-meter data, the OpenEEmeter can calculate the hourly impact of efficiency measures on load-shape, allowing utilities to procure greater savings at different times of the day.

The OpenEEmeter is the open source measurement tool the industry needs.

Download the code and give it a try
OpenEE has taken the lead on developing the OpenEEmeter. Our enterprise products,
built on the OpenEEMeter, make data loading and visualization of results seamless for our clients.
CompanyEnterprise Products

Our Team

Our team of efficiency experts, leading data scientists and world class software engineers is at the heart of what makes OpenEE great. We are passionate about what we do, we love our customers and we think data is fun!

Matt Golden

Chief Executive Officer

Whether testifying before Congress or auditing Ellen DeGeneres' house, Matt Golden has been spreading the word about energy efficiency for years.

An entrepreneur, policy advocate, and efficiency agitator, Matt is committed to bringing energy efficiency in the built environment to scale as a demand side resource. He has made presentations on emerging efficiency markets to the US Senate Finance Committee, at COP 21, and to the UK Parliament among many others.

Matt is CEO of Open Energy Efficiency, the company that developed the OpenEEmeter, an open source platform for measuring energy savings and load shape based on smart meter data. Open Energy Efficiency works with a variety of utilities, government agencies, and private efficiency providers to track savings and load shape using AMI data and enable pay for performance markets for demand side capacity.

Matt also leads the GBCI Investor Confidence Project implementing a system to certify commercial and multifamily Investor Ready Energy Efficiency™ projects in order to reduce transaction costs, and develop actuarial data to unlock capital markets for commercial and multifamily retrofit projects.

Previously, Matt founded Recurve, which developed tablet based energy auditing software for the residential energy efficiency industry based on real world experience gained through thousands of energy efficiency audits and retrofits as a licensed CA energy efficiency contractor. Tendril Networks acquired Recurve in 2012.


McGee Young

Chief Product Officer

Known as the "Hero of Efficiency," McGee Young keeps the OpenEE team on track with salty language and a world-class sense of humor.

Before joining OpenEE, McGee founded MeterHero and H2Oscore, two efficiency startups that help homeowners save water and energy by using innovative business models to drive behavioral change through data driven insights.

In addition, McGee was a tenured member of the Department of Political Science and the Entrepreneur Faculty Fellow at the Kohler Center for Entrepreneurship at Marquette University. He was named to the 40 under 40 by the Milwaukee Business Journal in 2014.

McGee holds a PhD in Political Science from the Maxwell School of Citizenship and Public Affairs at Syracuse University.


Carmen Best

Director of Policy & Emerging Markets

With a background in geology, Carmen rocked efficiency as head of EM&V for the California Public Utilities Commission, and is now crushing it at OpenEE.

Carmen led the Energy Efficiency Commercial Programs & Evaluation team and served as a senior analyst during her ten years working with the California Public Utilities Commission. While there, she facilitated the Commission’s transition to standardized data and reporting, priority-based evaluation planning, and stakeholder engagement processes to manage its large-scale energy efficiency evaluation portfolio.  

She brought the findings and insights from these efforts to statewide energy policy through demand forecasting, integrated resource planning and overall improvements in the deployment of energy efficiency, and has shared lessons learned across the continent and the world.  

Carmen holds a master’s degree from the Nelson Institute of Environmental Studies at the University of Wisconsin - Madison and her geology credentials were earned at the University of North Dakota.


Alyssia (Lis) Byers

Head of Customer Success

Lis brings Canadian-style discipline to the unruly California culture of OpenEE.

She joined the OpenEE team in 2017 to lead customer success initiatives including onboarding, training, testing and support for existing and new users.

Prior to joining OpenEE, Lis held similar roles for several companies, including as VP of Customer Success for 17hats, where she established extensive training and onboarding programs, as well as leading a 24/7/365 customer support team.  

Lis thrives on helping others, a passion she has put to use by teaching computer science students at her local community college.

She graduated first in her class at Humber College, where she studied Computer Engineering.


Dave Yeager

Senior Software Engineer

The inventor and coiner of Yeagercoin, a "cryptocurrency that has no real intrinsic value and may or may not be valuable in the future (but probably not)" (Urban Dictionary), Yeager is a passionate advocate for peer-to-peer knowledge and distributed resources.

Yeager joined OpenEE in September 2016 to support the onboarding of the company’s growing customer base. He currently leads the development of OpenEE’s data pipeline, where he works closely with clients to develop seamless back-end systems to clean, sort and upload energy data into the OpenEE meter platform.

Prior to joining OpenEE, Yeager was a Director at BlackRock investment management, where he focused on automation systems for institutional fund clients including approximately a half trillion dollars in order flows per year. His responsibilities also included web design and development for order placement and portfolio analysis products, including the MoneyFund Aggregator transparency project.

He is a graduate of Villanova University.


Phil Ngo

Senior Software Engineer

A genuine Renaissance man, there is almost no part of the OpenEE business that Phil Ngo hasn't touched (whether he wanted to or not).  

Phil began working with the OpenEE team in 2014 and was the chief developer of the open source Python package that would form the basis of the OpenEEmeter. In 2016, he joined the team full-time, where his role grew to include building the OpenEE dashboard analytics backend (data warehouse) among other responsibilities.

An advocate of using science for social good, Phil has always looked for opportunities to use his engineering skills to make a difference in the world. Prior to joining OpenEE, Phil worked as a developer at the Impact Lab, where he built data products for clients in energy efficiency and nonprofit sectors with large data assets, and at Effortless Energy, where he designed and implemented methods to calculate the energy and monetary savings of residential energy efficiency measures, including smart thermostats and envelope retrofits.

Phil has a degree in Chemistry from Harvard University.


Arpan Kotecha

Senior Software Engineer

Arpan was attracted to OpenEE because of its reputation as visionary company. He is hoping that it won't disappoint him.

Arpan has over 12 years of software development and management experience in the world of finance and trading. Prior to OpenEE, he had cofounded his own software and data analytics consulting firm. He loves reading about new technology, productivity hacks, nutrition, and spirituality.


Hassan Shaban

Senior Data Scientist

Hassan "Dataguy" Shaban gave up several promising opportunities to join OpenEE after learning about the innovative work being done on Yeagercoin.

Hassan joined OpenEE in summer 2017 to work on the data science core of the OpenEEMeter and to expand its capabilities in the smart device space.

Coming from an engineering background, Hassan has worked on both the supply side and demand side of the energy industry, most recently in energy efficiency program implementation. Prior to that, as an academic, he worked on IoT applications in nuclear power plant safety and monitoring.

Hassan holds a Bachelor’s degree and PhD in Mechanical Engineering from Alexandria University and the University of Ottawa, respectively. He enjoys Mediterranean cooking and playing soccer in old-timers’ leagues.


Vikhyati (Toshi) Singh

Data Scientist

Toshi "The Detective" Singh spends her days hunting down data problems and fixing them. In her spare time, she creates visualization analytics to help OpenEE clients understand where and how to help their customers best save energy.

Toshi joined OpenEE in 2017. She has helped build the ETL data processing pipeline for new customers, migrated raw energy data to the structured data required for machine learning modeling and evaluation, and performed machine learning modeling. Toshi also helps build, manage and keep track of new customer deployments as well as upgrading existing customers when new features are released.  

Toshi has a strong interest in applying data science engineering to solve social and environmental problems. Previously she worked as a software engineer at the Climate Corporation, where she built a pipeline to fetch, clean and store data and create graphs on Graphana, and as a researcher at the University of Washington, where she applied machine learning algorithms to large health datasets.

She is a University of Washington computer science graduate.


Stephen Suffian

Software Engineer

By hiring Stephen Suffian, PhD, OpenEE is pleased to continue its mission to help provide full employment for over-educated academics.

Stephen holds a Bachelor's in Electrical Engineering from Penn State University, and a Masters in Sustainable Engineering and PhD in Electrical Engineering from Villanova University.

During his stint in academia, he split his time between research and related work that led him to spend long stretches in Kenya and Nicaragua, working on projects ranging from telemedicine systems, tomato food value chains, a community service day CMS, and behavioral energy efficiency.

Steve's passions include selling tomatoes to strangers in Kenya and trying to convince everyone he knows to move to Philadelphia. He speaks Swahili and has used the phrase "Hakuna Matata" in a serious conversation.


Andrew Terenzio

Product Specialist

Andrew Terenzio has always a passion for responding to RFPs, so when an opportunity to join OpenEE came up, he knew it would be a good fit.

Andrew joined OpenEE in June of 2017 to work with a growing list of customers and help with the acquisition of new clients. Andrew will also help with the development of business operations as Open Energy Efficiency continues to grow.  

As a passionate sustainability and social activist, Andrew has always sought opportunities to make the world a better place. Before joining OpenEE, Andrew worked as a sales coordinator for Envision Solar, where he sold solar powered, transportable electric vehicle (EV) charging systems. He also has also been awarded grant funding to research socially innovative grocery store business models for food deserts.

Andrew has a degree in Entrepreneurship and Interdisciplinary Global Ecology from Marquette University.


Lakis Polycarpou

Content and Documentation Development

Lakis joined the OpenEE team in early 2017 to develop communications content and help articulate the company’s vision for open source efficiency.

Trained as a journalist, Lakis has written extensively about topics related to sustainability and energy, including water usage and trends, climate change, infrastructure, food systems, and urban planning. Lakis is also a novelist. His first book, August in the Vanishing City, was published in 2015.

While Lakis was tasked with writing the bios on this site, he takes no responsibility for any errors or omissions.


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