TOOL & DATA

The documents below are the excell files to calculate following the original approach (2013/2016). With new insights from MAXergy 3.0, this can be more simplified. But this work still has to be carried out….

This page contains the excell file, (below) in which most of the data are gathered, and contains an example calculation for a basic house. The house was designed by students, and ambition was to make it near 100% biobased. In the end around 80 % was from renewable origin. As well as it should be a 0-energy house, generating its own renewable energy .

The Embodied Land for materials is a straight on calculation as described before. For (operational) energy its calculated that ( in this case) 100 m2 of PV is needed. Which implies 100 m2 panels (Polycrystalline/ PVp) to be installed. Each having EL as well. This has been calculated in a separate EL calculation for a PVp panel ( excell below as well) and this is imported in the caclulation not as materials but as EL from ‘ components’ ).

The calculation is made to the second order.(see sheet above). Which implies that beside the direct impact from materials (first order), the embodied energy and the circular energy, assumed to be produced by PV as well, are included as production land for the PV to supply that energy. (second order) . The production of the panels for materials processes are not included ( third order)

The panels to supply the operational energy, are direct material inputs to the system, and therefor the materials impacts of producing these are included. ( separately calculated, and added as component) (first order). As well as the surface area for the panels to function: (second order) .

Not included (yet) : finishing materials & decoration, heating/ventilating/electric equippement, and losses due to exchanges with the grid. ( use of infrastructure etc)

You will find most data in the excell files, there is still work to improve, as also listed under questions to solve.

Excell: Maxergie 2-0 v4-4 HOUSE 120116

Excell: MAXergy 2-0 comp PVmc v2 010116

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This is a working environment to develop a unweighed evaluation tool for impacts by human activities, based on the ' effort' to keep resource cycles closed. Its open source, and material is available for students and researchers that want to contribute to the development or want to use it as study material in students assignments.

The site is run independent by Ronald Rovers, and supported by lecturers and students from several universities. But more is welcome!
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See the open call for contributions, and the "to solve" page for interesting research questions.

MAXergy ( "Maximising Exergy") is the name of the methodology to calculate all impacts to close a resource cycle: from harvesting or mining, to restoring the original stock. ( for organic as well as for minerals and metals). It also does this without weighing factors, bringing all impacts under 1 indicator, 'Embodied Land'.

Embodied Land is in fact the land required to produce all our goods and energy, in a way to maintain the original quality/potential in a system .
More detailed:
Embodied Land is defined as : the land (related to incoming solar radiation) binded over a certain time period required to process ( Embodied Energy) and to restore (Circular energy) the energy and materials involved in providing any functional service , in order to maintain (restore) system potential upon the level before the service provided – based on the only one source that does not deplete our own system environment : Solar radiation.

#MAXergy

TOOL & DATA

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