Feasibility of Renewable Energy production in small buildings

A new tool to assess the introduction of renewable energy sources

3E designed a new tool to assess the Feasibility of Renewable Energy production in small buildings (less than 1000 m²).
The tool, designed in Python will run on any type of computer and OS. It is linked to the EPB tool and to a database owned by SPW (Service Public de Wallonie).
Each scenario built by the EPB responsible will assess technical & economic feasibility of a range of Renewable Energy Sources : Solar hot water systems, PV, biomass heating, air-water heat pump, ground source heat pump, cogeneration)

B&S_0_1

In a first step the tool assess renewable technologies which could be implemented on site, based on a set of qualitative criteria (e.g. roof orientation, heat consumption, storage room, distance from a heat network…)
As illustrated below, the EF tool is user friendly and respects the lay-out and logic of the EPB tool.

B&S_2

For technologies which look feasible, the EF tool calculates the overhead costs, the return on investment, the primary energy and CO2 saved by each renewable solution compared to the reference case calculated in the EPB tool.
Potentially feasible renewable energy systems are pre-sized (collector area, installed capacity, thermal output, storage size…).
Financial, energy and CO2 indicators of each solutions are compared between them and with the EPB reference case in clear and simple graphs.

B&S_3

Last but not least, the tool generates a feasibility audit report in PDF format, summarizing the basic assumptions, the calculation methodology and of course, the results.
Background figures (primary energy factor, CO2 emission factor, energy prices, material and installation costs, discount rate etc…) are either extracted from the EPB file uploaded by the user or from a dedicated database put in place and updated by the Walloon General Operational Direction for urban planning, housing, heritage and energy (SPW-DGO4).
The tool and database related will be freely available on SPW’s energy portal from April 2015 onwards.

 

 
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