CLASP serves at the epicenter of collaborative, ambitious efforts to mitigate climate change and expand access to clean energy, through appliance energy performance and quality.

Our work is guided by our core values:

Transparency is an organizing principle of our institution. Team members collaborate across initiatives and continents. We value direct and open communication with our global partners, and always ensure that our work lives up to standards of scientific rigor and best practices.


We are a global resource and voice for appliance energy efficiency and quality in on-, off-, and weak-grid sectors. From the beginning, we have worked in service of the field of appliance energy efficiency and for key stakeholders to improve the environmental and energy performance of appliances. Anywhere we go, we aim to leave a healthier ecosystem behind.


CLASP was founded as a shared program by three organizations – with collaboration at its core. We remain committed to collaboration, recognizing that no one can solve the world’s most pressing issues alone. We seek out and partner with the world’s foremost experts in the sectors, specialties, and regions we work, for the best possible outcomes.


CLASP addresses the urgent global issues of mitigating catastrophic climate change and delivering sustainable energy services to the world’s poorest people. We pursue these dual objectives to advance a more sustainable world for people and the planet. Accordingly, we prioritize impactful actions and make the most out of financial, human, and intellectual resources.

Our suite of services includes:
Energy & Quality Standards

Standards push markets toward higher quality, higher efficiency appliances and eliminate inefficient, poor-quality models. CLASP partners with policymakers, consumer groups, technical and market experts, and others to design and implement energy performance and quality standards.

Labeling & Buyer Education

Labels communicate important information for buyers to make educated purchases, showing a product’s energy performance and other characteristics. They make it easier for utility companies, government energy agencies, international aid agencies and others to procure in bulk or offer consumers incentives to buy better appliances.

Awards & Product Recognition

Recognizing good appliances drives design innovation, reduces risk for early-mover manufacturers and buyers, and strengthens markets. CLASP designs awards programs that recognize best-in-class products and encourage innovation for energy performance and sustainability.

Compliance, Testing, & Quality Assurance

Robust testing and policy compliance underwrite consumer, seller, and manufacturer investment in appliances and equipment, verifying product performance, safety, and durability against energy and quality standards. CLASP supports reliable testing and market monitoring to reduce risk and fill key information gaps, ultimately safeguarding the benefits of high-performing products.

See how this comes together through our programs


Our mission is to improve the energy and environmental performance of the appliances & equipment we use every day, accelerating our transition to a more sustainable world.

We envision a world in which appliances and equipment are life-changing, low-impact, and environmentally responsible.

Our team is deeply committed to the organization's mission and values.

Meet Our International Team

CLASP pays 100% of all team members’ commuting costs via mass transit.

Sustainability Practices

With generous donor support, CLASP has worked in nearly 100 economies since 1999.

Financials & Donors


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