O2C, the carbon tool from lifecarbontool for plants


A carbon footprint evaluation tool. The O2C carbon calculator will allow you to evaluate Greenhouse Gas emissions from wastewater treatment, drinking water, or desalination plants in the construction phase or during operation.

An adjustable parameter. The calculator offers you the option of conducting simulations on:

  • the overall perimeter of a plant by entering operation and construction data,
  • the restricted perimeter of a plant by entering operation and construction data.

An exhaustive approach to greenhouse gas emissions. Whether for the construction of a plant or for its operation, the greenhouse gases generated in the following ways shall be taken into account (if applicable):

  • Energy consumption (fuel, electricity, natural gas, etc.)
  • Procedures specific to the water and waste management businesses
  • Production of inputs (reagents, consumables, construction materials, equipment, etc.)
  • Movement of persons
  • Transport of goods, sludge, waste, materials (incoming freight, internal freight, outgoing freight)
  • Waste treatment and sludge processing

A dynamic, scalable online tool. The O2C calculator allows you to :

  • create and record plant scenarios confidentially
  • update greenhouse gas reports periodically online
  • compare scenarios 2×2
  • share results online with the users of your choice
  • export data and results in an easily usable format (pdf, excel)

An up-to-date evaluation tool. The emission factors for the O2C tool come from public sources (Ademe – Carbon Audit®, ASTEE, etc.) as well as investigations conducted by the CIRSEE.
This is true in particular with emissions related to the decomposition of organic materials in anaerobic conditions (CH4) or the treatment of nitrogenous shapes (urea, ammonium, proteins) present in water (N2O generated during the nitrification and denitrification phases). Research into these matters has appeared in recent publications.
One of the specific features of O2C is that it integrates direct emissions from CH4 and N2O related to waste water treatment processes and allows the periodic update of emissions factors.

A “standards” tool. The tool relies on Life Cycle Analysis (LCA) and the greenhouse gas metrics (ISO 14040) defined by international guidelines. It includes the methodological rules of ADEME‘s Bilan Carbone® audit in France, and is based on the guide published by them ASTEE

Data required to start an O2C evaluation

  • Plant characteristics (gross water and quality of treated water output by the plant)
  • Plant operation audits (activity data)
  • Items related to the construction of the plant (construction materials, evacuated materials, equipment, energy used during construction, etc.)

OSRAM Light-a-Home


Choose light for your home: economical and environmentally friendly. Rising energy costs and climate change on a global basis make it increasingly important to save energy and minimize our carbon footprint. If you choose more energy-efficient light bulbs you can reduce your power consumption, energy costs and CO2 emissions considerably. Use OSRAM Light-a-Home and find out how much you can save in your home. Simply compare the light bulbs you are currently using with our OSRAM energy savers.

OSRAM Light Consultant


Calculating tool for economical and energy-efficient lighting systems. Besides the ideal illumination and the numerous application possibilities, the economical aspect of a light system gets more and more important for the purchase decision. With the right lighting system, you save energy, costs and reduce CO2 emissions.

How much you can save with an innovative light system from OSRAM will be demonstrated with our Light-Consultant. This tool enables you to compare conventional light systems with energy-saving solutions from OSRAM for different light projects.  You see at a glance how fast a system change pays back and which savings can be achieved.

Internet-based design tool for façades


Fraunhofer Institute for Building Physics

Determination of daylight autonomy and lighting energy needs in rooms with different types of façade

As a general rule, complex measurements and calculations are required to determine the precise impact of different façades on indoor lighting conditions, artificial lighting requirements and the indoor heat gains that stem from lighting. These calculations are often too costly and time-consuming to perform in the initial stage of planning a building, yet many of the most important decisions concerning daylight availability are nevertheless made at precisely this stage of the process. This calculation tool has been designed to support the decision-making process. The program allows you to quickly compare different variants with tolerable deviations in order to identify the optimum solution at an early stage. It also provides you with a quick overview of the effects of different measures involving the structure (façade geometry, obstructions, etc.) and the engineering of the façade itself. The tool allows you to assess the quantities of daylight available for rough openings and calculate working figures for the relative operating times and daylight autonomy for 10 different façade systems. The annual energy saving potential can be determined on this basis, and it is even possible to calculate figures for lighting energy needs by specifying the installed output of the artificial lighting system and entering data on the type of lighting control system.

Philips lighting upgrade


This Calculator is intended to provide an example of potential savings based on your input, and is provided “as is”. Philips does not warrant or make any representations regarding the use, validity, or accuracy of the results of the tool. Actual savings may vary.