Our company

Our company


Sigma Energy , manufactures industrial solar thermal systems from 1983, using always the latest cutting edge technology. Our company is located in the city of Volos, Central Greece.
Our company is a family company, and already the third generation has been positioned in the managing of the company. From the first days of the company’s establishment Sigma Energy occupies 25 people ( Managing stuff, engineers, labour force, installation crew ).
We allocate a vast network of partners in Greece and throughout Europe, Africa and Gulf region as well. We expand day by day using a specific business development strategy,structured through our many years of experience.



We have earned our customers respect due to the following:

  • High quality products
  • Specific delivery dates
  • Best value for money
  • Innovative products
  • After sales support


5 reasons to choose Sigma as your long term partner

  1. We posses a market share of 8% for the last 6 years in the Greek solar market.First in sales in Central Greece, for the last 20 years.
  2. Our flexibility. Our production facility is very adaptive. Therefore we can adapt to any special need, that our clients might come up with.
  3. 32 years of solar engineering.
  4. Our technical departmen, deals directly with any technical issue that might arise, either this is addressed to a wholesale or retaile partner.
  5. Our 20 years of EPC experience.

Sigma in numbers

Total complete systems installed from 1983 : 60.000 ( sixty thousand ).
Total installed collectors in sqm: 650.000 sqm.
Total installed capacity of storage tanks: 20.000 tonnes
Our manufacturing capacity, oscillates at 60,000 m² of collector area and 200,000 litres, per year.


Manufacturing specifications and certifications

Sigma’s Energy manufacturing process is certified with the ISO 9001: 2008.
Our solar collectors are solar keymark certified and are constantly checked for their quality and efficiency as well.
Our complete solar systems, have been also certified, based on the energy efficiency from ΕΛΟΤ ( Greek standardisation institution ).
Sigma’s solar systems, are manufactured based on the latest European standards, of ΕΝ 12975-1 and ΕΝ 12975-2.



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