Our Approach

TerraLocke's team of professionals bring years of business, government, and non-governmental organization (NGO) experience to your sustainability project.


Collaborative: The TerraLocke team believes that sustainability initiatives don't take place in isolation, but within the overall environment of your organization, which may include local government, businesses, educational entities or non-profits. Our experience has shown us that creative solutions can come via collaborations with these other entities! So, when we help you think about sustainability, you can be assued that we'll be working with both your internal and external stakeholders to together develop the smartest and most effective sustainability solution for your organization.

Analytical: It's about the bottom line, isn't it? Most of our team members have direct business experience and advanced degrees in business administration. They know how to develop the strongest business case for your sustainability efforts.

Efficient: All our work is done with an eye towards saving time and saving effort, so you can go take a hike, ride a bike or rock climb (some of our team's favorites) and enjoy the environment you are helping to protect.

Creative: Some sustainability solutions are pretty straightforward and don't need much "out of the box" thinking. Others, especially comprehensive solutions for entire organizations, need creative minds, minds willing to consider new approaches and new combinations of approaches. We specialize in making the connections - with ideas, people, and financing - so that creative approaches can happen every day.

Cooperative: And speaking of crafting creative solutions, whatever effort your organization is engaged in, when you work with TerraLocke you tap into the expertise of our entire team. We love to work together, and your point of contact in TerraLocke is always "picking the brains" of other team members to help you develop the best solution for your organization.

A SPECIAL WORD TO OUR NON-PROFIT FRIENDS: Don't let our strongly business-based approaches turn you away! A business-based approach to your sustainability efforts means you'll have to write fewer grant proposals, and conduct less direct mail fundraising! And your current funders will be thrilled that you are using their support so efficiently. Besides, lots of our team members have NGO experience. 


We bring you expertise in the following areas

  • Program evaluation, design, and development
  • Greenhouse gas inventories
  • Strategic planning
  • Buildings, energy, and renewable energy
  • Identifying and acquiring funding, including grantwriting
  • Training and curriculum development
  • Marketing, messaging, and branding
  • Sustainability and green certifications
  • Database driven application design and implementation


Peter Locke, MBA, LEED AP, GHG IQ, RESNET Certified Energy Rater
Peter is a Co-founder and Managing Director of TerraLocke Sustainability Consultants and specializes in stakeholder engagement, energy efficiency, partnership development, project structuring (aka - connecting the dots) and strategy, project financing, financial analysis, client relationships, project management, meeting facilitation, presenting/training, and information system design and implementation. 

Peter has 20+ years of professional experience leading cross functional teams; defining sustainability plans for organizations; identifying and securing funding for energy efficiency retrofit and renewable energy rprojects; managing company-wide information system implementation projects; facilitating inter-departmental dialog and collaboration; negotiating contracts; and defining and implementing organizational processes.

Peter regularly speaks on a range of sustainability related topics and has presented at the University of Illinois Chicago, Columbia College, Loyola University, Chicago Center for Green Technology, International Council of Shopping Centers events, Construction Specifications Institute, and Green Festival.

Peter holds an MBA with a concentration in Finance from the University of Rochester in Rochester NY and a BA in Economics from Clark University in Worcester MA. He earned his LEED AP, RESNET Energy Rater certification, and Greenhouse Gas Inventory Quantification (GHG IQ) certification. 

Rachel E. Locke, PhD
Rachel brings to TerraLocke over 20 years of experience in top-tier academic medical centers, in project management, grant writing, educational programming, public outreach, and basic biomedical research. Her closest affiliations have been with Washington University School of Medicine in St. Louis, University of Pennsylvania School of Medicine, Children’s Hospital of Philadelphia and Columbia University Mailman School of Public Health. Her experience in other parts of the healthcare sector includes outpatient health services, and offices and clinics of medical doctors.

Rachel is a key member of TerraLocke' proposal team, where she enjoys thinking about how to structure information and convey ideas clearly.

Outside of the US, Rachel consults (in English and Spanish) for the Monteverde Institute and the Children’s Eternal Rainforest (Bosque Eterno de lo Niños), both in Costa Rica.

She holds a BA in Economics with Honors from Swarthmore College in Swarthmore, PA and a PhD in Neuroscience from Washington University in St. Louis.

Jeff KeatingJeff Keating, PhD
Jeff believes that the major advances in greening the business world have, and will continue to, come from data-driven approaches to optimizing existing hardware and operations. Jeff worked at the University of Pennsylvania using Machine learning and Artificial Intelligence agents to search for clues about the workings of the epileptic brain. With 15 years of experience in the development and application of supervised and unsupervised learning techniques on large databases, Jeff brings a unique expertise in data analytics to the TerraLocke team.

Jeff obtained a BS in Philosophy and Molecular Biology from the University of Wisconsin, followed by service in the Peace Corps in Sierra Leone West Africa. He then obtained his PhD in Anatomy and Neurobiology from Washington University in St. Louis. At Penn, he worked with George Gerstein (the ‘father’ of multi- dimensional correlative analysis) on neural network activity during skilled learning before moving on to apply himself to the problem of real-time seizure prediction.

Jeff is currently on the board of the non-profit La Pedrera, and enjoys rock climbing and running.


Sarah Stewart
Sarah has spent the last 18 years in Utilities and Manufacturing focusing on Asset Management Systems that streamline both Work Management and Supply Chain processes. Her unique understanding of functional requirements and her ability to translate them into technical verbiage ensure her customers' needs are met. She consults independently with Accenture and IBM primarily specializing in Maximo. Her recent clients include Duke Energy, NIPSCO, Nisource, IPSCO Steel (now SSAB), Anchorage School District, and Trinity University. While serving as a Signal Officer in the United States Army in Germany and the US she learned the importance of Asset Management Systems and has translated that knowledge into the current sustainability climate. She holds a BS degree in Biology from Dickinson College.


Lindsey Elton

Lindsey brings over a decade's worth of marketing and communications experience to TerraLocke. She has helped private and not-for-profit clients with public relations and rebranding initiatives; fundraising programs; website design, re-launch, and management efforts; social media and marketing campaigns; and membership management.

Lindsey is a RESNET-certified energy rater. Her previous green building experience includes the Chicago Green Homes Program, as well as the HEET Weatherization Program, which provided workforce training and basic weatherization improvements to lower-income homes throughout Chicago.

In addition to working with TerraLocke, Lindsey is actively involved in the community, including her participation with multiple Green Festival events, No Foam Chicago, and various sustainability-related side projects.