+34 91 451 97 00 correo@lonjastec.es

Who we are?

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.

Global Presence

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.

Engineering and Project Management

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.

Operation & Maintenance

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

Environmental Consultancy

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

Venta de electricidad

LTEC Energía es la empresa del grupo que actúa como comercializadora de energía eléctrica.\nNuestra vocación es ofrecer los mejores precios de electricidad en cada momento a las pequeñas y medianas empresas e industrias. LTEC incluye en como parte de sus servicios un asesoramiento integral que permite la optimización de todos los costes asociados al consumo de eletricidad.

Polygeneration ST4
16.000 kW


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.

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.


Biogas & Biomass


Energy Audits