Between 2016 and 2017, in the province of Jujuy, Argentina, a pioneering and innovative project was developed in which 4,000 social housing units were equipped with solar water heaters. These heaters were designed and adapted to the climatic conditions of the region, in collaboration with the EcoAndina Foundation. Seven years later, the UNDP Accelerator Lab in Argentina (Co_Lab) returned to the area to listen to the people involved and understand the factors that facilitate or hinder the adoption of this technology.

Through interviews, surveys, and focus groups, the study revealed that users had positive opinions about the solar water heaters. However, only 7% of households used them exclusively, 35% used them in combination with another device, and more than half did not use them at all. The reasons included unresolved minor technical issues, incorrect installations, lack of assistance, limited training, and the absence of a critical mass of users within neighborhoods who could share simple solutions to everyday issues the heaters might present—just like with other household devices. In conclusion, most of these obstacles can be avoided or overcome.

The findings of this study highlight the potential of projects like the solar water heaters in Jujuy to improve people's quality of life and reduce energy costs. However, it is necessary to provide adequate infrastructure, address technical challenges, and offer more support to beneficiaries in order to maximize their benefits. This experience shows that delivering technology is not enough: it is crucial to accompany it with collective learning processes, ongoing support, and community connections.