Welcome to TECASOL

What We DoWho We Are

What we do

TECASOL has its head office in Elgoibar (Guipúzcoa), as well as a network of technical offices and commercial agents throughout Spain. It is perfectly equipped and ready to assist all its customers. TECASOL has extensive experience developing energy projects related to sun and water.

TECASOL currently concentrates its activities in the following business areas:

·Network connection projects in distribution up to 5MW/DC

·Self-consumption projects for the industrial, agricultural and service sectors.

·Self-consumption projects for the residential market.

·Distribution of equipment for all lines of business.

·Self-consumption facilities with intelligent storage.

Who we are

TECASOL was founded in 2014 and is based in Elgoibar, Basque Country. The company is a leader of the local industry in commercial and industrial solar thermal and photovoltaic space, having the ability to partner with experienced solar installers. It makes great efforts in the realization of sales and market knowledge, in addition to having experience acting as a general contractor. The company is also positioned as a distributor of innovative products in the water and solar treatment space, allowing it to enter new markets using TECASOL as a local consultant in product certifications as well as in the market entry approach.

Recently, we have taken a strategic turn towards working with EPC developers, investors and contractors to develop larger projects that sell electricity to commercial/industrial and municipal buyers. The company plans to maximize returns through a diverse portfolio of projects in multiple leading solar energy markets.

In the past, TECASOL has developed, built and funded many C&I and residential facilities on and off the grid. Currently, TECASOL is conducting development as a service, acquisition and organization of investments and financing for project sizes, usually in the range of 500 kW – 5 MW.


Univergy Solar

Univergy Solar


We are partners of Univergy, a business group of Spanish-Japanese origin, whose areas of action are focused on the Renewable Energy sector, with special interest in the development, construction and operation of photovoltaic solar energy projects, as well as in its many domestic, industrial and agricultural applications.

The company began its activity in 2012, establishing its main headquarters in Tokyo and Madrid. Since its creation, it has experienced significant growth and has positioned itself as a global developer of sustainable projects, establishing offices in countries around the world, with commercial presence on all continents.

So far, the group has its own business and offices in Spain (Madrid, Albacete, Palencia, Seville, Basque Country, Mallorca, Las Palmas, Fuerteventura, Coruña), France, the Netherlands, Italy, Germany and the United Kingdom. In Asia it is present in countries such as Japan, South Korea, Vietnam, Taiwan, Indonesia, Bangladesh and India. In Latin America we have offices in Colombia, Mexico, Argentina, Peru, Bolivia and Panama. Countries with a total portfolio of more than 2.6 GW.

Only in Japan, Univergy has a portfolio of photovoltaic projects exceeding 1 GW, actively participating in the development and implementation of various projects carried out by other companies.

We currently have business development and upcoming openings in the United States, Australia, Zambia, Zimbabwe, Togo, Botswana, Nigeria, Namibia, Paraguay, Puerto Rico, Dominican Republic, Dubai, and Sri Lanka.

For more information, visit http://www.Univergy.com/

Follow Univergy

Ecosun Innovations

SOMOS el único servicio autorizado de instalación, mantenimiento y reparación de instalaciones de Ecosun Innovations en España

Power Panel

SOMOS distribuidores oficiales en España de los paneles de Power Panel


Please feel free to contact us if you have any questions, problems or suggestions. You can do so by sending the form in this section or by contacting us through any of the methods detailed below.

    Pursuant to the provisions of Law 15/1999, of December 13, on Protection of Personal Data, we inform you that your data will be included in a file under the responsibility of TECNICAS DE AGUA Y DEL SOL SL in order to answer your queries.

    You can exercise your rights of access, rectification, cancellation and opposition by writing to our address: Calle Bernardo Ezenarro 15, esc. 2-2º B, 20870 Elgoibar (Gipuzkoa) - SPAIN

    Unless we are informed otherwise, we understand that your data have not changed, and that you agree to notify any change and that we have your consent to process these.

    Furthermore, and pursuant to the provisions of Law 34/2002, of July 11, on Services of the Information Society and Electronic Commerce, Article 21, we also request your express consent to send publicity of our products or promotions that we feel may be of interest, either by email or by any other means of electronic

    Please note that you have the right to revoke your consent to receive commercial communications by sending an e-mail to the email address: a.azpiazu@tecasol.net

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