About Us

ONERGYS is your experienced partner for the supplying of spare parts and the economic optimisation of your cogeneration power plant and your decentralised  energy facilities. 

Source your biogas engine and other diesel and gas engine spare parts online on www.onergys.de 

Based on our many years of experience in plant engineering and the operation of cogeneration power plants (CHP) worldwide, we have developed an innovative B2B platform (webshop /eshop)  for operators, service providers and equipment manufacturers of CHP systems: www.onergys.de. 

On onergys.de you can choose from our continuously growing range of consumables and spare parts, plant components and services. The range covers everything from A to Z, everything from a simple gasket up to complete modules, replacement parts and gas analyses or new and used facilities, available to buy or to lease. Pistons, Sark plugs, ignition parts, emission parts, cylinder heads, liners, valves, gaskets, seals, air filter, oil filter, upf ccv filter and other diesel and gas engine spare parts are listed online and stocked in our warehouse. Fast and reliable shipping and secured payment methods are offered too. 

As a registered customer you can get individual quotations to suit your own facilities and profit from our innovative facility management or effective QR code shopping.. In addition, at ONERGYS.de you can find new or used facility components for new construction projects or conversions  and also new facility components from the stocks of leading manufacturers.


Warehousing and shipping

A comprehensive stock of parts, efficient logistics and the connection of our software systems to our experienced partners and reliable service providers ensure that orders are processed promptly. You will get the items that you ordered within a very short time. That reduces the downtime of your facility and cuts your costs because you do not need to keep stocks of parts. 

Why to order spare parts at onergys?

It is important to have the correct spare parts matching for your engine type. It is critical to minimizing downtime on your engine and for optimization of your profit. That´s why ONERGYS offers a large inventory on gas engine (biogas, landfill gas, natural gas, mine gas) spare parts with an excellent service and comprehensive knowledge needed to ensure you have the correct cogen spare parts for your gas and diesel engine type. From small to medium size maintenance intervals, ONERGYS provides tailored spare parts packages for your gas and diesel engine.


Your benefits

  • OEM quality. As we sell thousands of original equipment manufactured gas and diesel engine spare parts ONERGYS ensures the optimal performance, reliability, and durability of the offered spare parts.
  • Complete solutions. ONERGYS individual spare parts packages provide you with everything you need for the engine maintenance outage.
  • Knowledge base. ONERGYS employees and worldwide network of manufacturers and partners bring long-term experience and competency you will benefit from in our long time business cooperation.
  • Availability and quick dispatch. Secured by ONERGYS and partners network warehouse and fulfillment logistics.
  • Simpler ordering process via innovative e-shop (webshop) for gas engine spare parts.

It´s that simple! No inquiry forms and closed shop experiences you know from old fashioned manufacturers. It´s open, it´s free, it´s state of the shopping art, it´s easy to use like Amazon. Come in and check out! www.onergys.de Your partner for gas engine spare parts   



Take full advantage of the experience of the experts from ONERGYS when implementing your repowering project or the construction of new facilities, in the organization of your service and facility operation or in improving your profit situation through the direct marketing of electricity. Profit from an extensive network and the ONERGYS arrangements. We would be more than glad to advise and train you in matters concerning the implementation, operation and maintenance of your facility.



Facility management

Become a customer at www.onergys.de and input the data for your facilities in the “My facilities” area. On the basis of your data you can find the matching spare parts at your own individual terms and conditions. The facility management and the ordering history give you a clear and rapid overview at any time of your facilities and modules. On request we can inform you well ahead of time of forthcoming maintenance work to be done and can automatically send you the corresponding quotations. The team at ONERGYS has many years of experience in the fields of construction, operation and servicing of CHP systems and decentralised energy facilities The use of various kinds of gas is by no means new territory for ONERGYS. When it comes to finding suitable spare parts and consumables and services for your CHP facility we can rapidly and reliably provide them for your biogas, landfill gas, natural gas, coal mine gas or sewage gas facility. 



Further benefits: An ordering service around the clock - spare parts for many current  types of engines, fast delivery - hotline for individual questions - suitable maintenance packages - professional facility management.


Register and just speak to us, we would be glad to hear from you!  

Note: What we have to offer is aimed exclusively at commercial customers. Your individual terms and conditions will only become visible after you have been registered and approved.

All prices are net, plus the applicable VAT and plus transportation, freight and packaging costs. Deliveries are made exclusively to business customers.
The reference numbers given are for the purposes of comparison only.