Since 60 years, Jema Energy designs and manufactures Static Power Converters for different sectors, such as Power Plants, Oil & Gas, Plasma Physics, Particle Accelerators, Railways and Renewable Energy.
We are customer orientated, developing bespoke systems and solutions which meet specific requirements of each project. These are innovative solutions with high technological content.
The aim of Jema Energy is to be a leading international company in providing customized solutions based on power electronic systems.
Founded in 1953.
Head Quarters in San Sebastián, northern Spain.
Commercial representations in USA, Brazil, Mexico, Qatar, UAE, Oman, Saudi Arabia, Morocco, South Africa, Italy, France and Germany.
Company is part of Grupo Irizar (3500 employees and yearly turnover of 500 M€).
Certifications ISO-9001, ISO-140001 and OHSAS-18001.
110 employees Over 60% dedicated to research and development of new products.
The-Company
Irizar Group
irizar is a business group that is primarily focused on designing, manufacturing and commercialising buses and coaches. It is also present in the electronics and communications sectors.
This global project is made up of more than 3,400 people, with bus and coach manufacturing facilities in six countries (Spain, Marocco, Brazil, Mexico, India and South Africa) and five joint ventures in Spain, as well as commercial presence in more than 90 countries throughout the five continents. Its head office is located in the Gipuzkoan city of Ormaiztegi (Spain), where aside from manufacturing bodywork, it also builds integral coaches for the European market. Creatio, the Research and Development Centre created to promote the Irizar Group's applied research and technological development capabilities for the brand's integral products and its main bodywork components, is also located in this city.
Founded in 1889, this year marks 125 years of history as the leader in the Spanish sector and one of the most important references on a worldwide level.

PV String Inverter

The grid tied inverters developed by Jema take advantage from its 60 years vast experience designing and manufacturing industrial, robust, reliable, secure and high efficiency power electronics systems and solutions.
The String Inverter optimizes the performance of your photovoltaic installation. Easy to install and manage, they are specially designed for residential use and industrial/commercial roof installations.

ST Series

Photovoltaic Transformerless three phase inverters
Three-phase ST-6.0
Three-phase ST-9.0
Three-phase ST-10.0
Three-phase ST-12.5
Three-phase ST-15.0
Three-phase ST-30.0

S Series

Photovoltaic Transformerless single phase inverters
Single-phase S-3.0
Single-phase S-4.0
Single-phase S-5.0
PV-String-Inverter
Other power also available under request.
We offer Accesories & Comunication services
In 2013, - IF product design award!!
FEATURES
TECHNICAL DATA
WARRANTY
Innovation & Technology
Multilevel Topology, transformerless
Single-phase and Three-phase PV Inverter
Innovative and Exclusive Input Stage Design for an optimisation of the panels efficiency
Max. efficiency 98%
Harmonic distortion bellow 3%
Anti-islanding detection and automatic disconnection
Protections: overvoltage, overtemperature, etc.
CE marked, EMC and Low Voltage Directives, RD, CEI, VDE, UL, CSA
Design
Easy Installation
Ultra-Noiseless
2 MPPT trackers
Wide range of operation voltage
Possibility to generate reactive power
Possibility of extending to different rated power