LONJAS TECNOLOGÍA is a Spanish engineering company which develops its activity in the Energy Sector. Its main expertise is in Combined Heat and Power (CHP) and Renewable Power Plants projects such as Biomass, Biogas, PV or Waste to Energy.

LONJAS TECNOLOGÍA has its headquarters in Madrid (Spain) and it has subsidiaries in Brazil, Perú, Mexico and South Africa from where it operates the markets of South America and Africa.

LONJAS TECNOLOGÍA is specialized in carrying out the engineering, construction and commissioning of high efficiency Renewable Energy and CHP Plants. The experienced team of Project Managers and Engineers allow LONJAS TECNOLOGÍA address highly complex projects with success.

The Operation & Maintenance Department is an essential part in the company structure. The O&M Department provides services of Operation Assistance and Maintenance for Power Plants constructed by LONJAS TECNOLOGÍA under Long-term Service Agreements.

This department provides services of environmental consultancy focusing it activity in

Emissions Trading
Environmental Authorizations and Licenses Permitting
Implementation Environmental Management Systems
Environment Department Outsourcing

Carbon Footprint
Environmental Impact Assessment
Environmental Risk Assessment

Lesedi & Letsatsi PV Plants 
2 x 75.000 KWp


Lesedi and Letsatsi projects are two twin PV plants of 75.000 kWp each constructed in South Africa. The plants were commisioned on May 2014. Lonjas carried away Owner’s Engineer services for both projects.

Polygeneration ST4
16.000 kW

 ST4 web

Polygeneration Plant (Electricity, Heat and Cold) based on gas engines integrated in a District Heating and Cooling network at Cerdanyola del Vallés “Parque de la Ciencia y Tecnología». The first phase of 16,000 KW was commissioned in July 2010.



Biogas & Biomass


Energy Audits