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other-good-practices

Other Good Practices

Good practices identified by partners that could'nt be seen during a study visit (too far, no knowledge of involved institutions, …)

GP O-1

Good practice #O-1Arduino and Raspberry Pi electricity monitoring
Main institution involved Agglomeration of Le Havre
Field:
Energy monitoringX Financial monitoring
Location Le Havre / Normandy / France
Jules Siegfried High School / several public buildings
Timescale 2016 - ongoing
Good practices categories
1-Good Practice measurement (hardware) X 5-Good data (energy and/or financial) collections system X
2-Good software X 6-Good energy and/or financial indicators and/or ergonomy
3-Good financial tools X 7-Good data analysing system
4-Good organisation and management 8-Good use of data X
Abstract or SummaryThe Energy Department of the Agglomeration community of Le Havre and the Jules Siegfried High School (Le Havre) are implementing an experiment with cheap and easy monitoring system based on free and open source hardware enhanced with self-developed software. This project started in mid-2016
Financial scheme(not available)
Further informations(not available)
Contact detailsname of the organisation or partner, email, phone… where any interested can get more detailed info about the GP
Long description Electricity consumption increases every year in public buildings despite energy efficiency efforts (lights, exhaust system, regulated systems…). In order to foster electricity savings - and save money, the first step is to know exactly which equipment consumes (and when) in the building.
DIY monitoring systems are cheap, easy to modify, upgrade and share. For on-the-spot datalogging (2 or 3 weeks), an Arduino Uno [+SD card and RTC shield] is used to collect data from the ENEDIS (French electricity network manager) electricity meter already installed on all sites. Old and new electricity meters can easily deliver data for power, consumption and intensity. \\On a simple request (and low price: 30 EUR), ENEDIS open the data flow port of their meters. With simple and low-cost electronical materials (resistances, wires, optocoupler…) and few lines of code, signal is received by Arduino, converted and saved on a SD card each minute during 2 or 3 weeks.
For long-term datalogging installation, a Raspberry Pi - with Python3, is used with a more complex architecture still in development: network connection is needed to store data on a remote server. At the moment, only few prototypes with three Arduino and one with Raspberry Pi are used to collect electricity data on four sites of the Agglomeration community.
After a year, results are great and several buildings have been optimized with cheap but specific improvements:
- decreasing and optimized subscribed power (kW),
-new heating and water production regulation or improvement,
-decreased consumption during high cost period. New electricity meters (Linky) with new code will probably increase and improve data monitoring.
Pictures, videos

GP O-2

Good practice #O-2Monitoring solution
Main institution involved The department of the Pyrénées Atlantiques with the company Greengest.
Field:
Energy monitoringX Financial monitoring X
Location Département of Pyrennées Atlantiques / France
Département's buildings
Timescale (not available)
Good practices categories
1-Good Practice measurement (hardware) 5-Good data (energy and/or financial) collections system X
2-Good software X 6-Good energy and/or financial indicators and/or ergonomy
3-Good financial tools 7-Good data analysing system
4-Good organisation and management X 8-Good use of data
Abstract or SummaryImplementation of an energy monitoring solution on the buildings of the department. The department's buildings correspond to 273 sites for 440,000 m2 with 2,500 employees. Better manage its buildings, achieve financial savings and be part of Agenda 21, while involving and improving the comfort of users.
Financial scheme(not available)
Further informationshttp://atee.fr/sites/default/files/ATEE/MDE/repertoire_releve/2016_11_18_Guide_pratique_ATEE_solutions_telereleve.pdf
Contact detailsJacques Suberbie http://greengest.fr/
Long descriptionThe first aspect of the approach consisted in carrying out an audit of the buildings. The objective of this step was to define the strategic orientations in terms of targeting of the actions on buildings and monitoring. The second aspect concerned the setting up of a steering committee to define and arbitrate the action scenarios. The scenario chosen consisted in carrying out work on the buildings and to establish an energy monitoring system. Knowing that we already had a construction team, the management of the operations was piloted internally. Works on buildings amounted to € 4 million for about sixty buildings, with an average time of return on investment of 11 years. The implementation of the monitoring system was entrusted to Greengest in the form of an energy performance contract (type: conception, realization, operation and maintenance contracts). The contract includes the installation of the monitoring system, its operation, the identification and implementation of energy performance actions, all over a period of 2 years with a target of 19% gain on energy performance. The performance obligation is governed by a system of bonuses and penalties, it is a form of co-engagement between Greengest and the department. So we bought an energy saving and not a technical solution. The monitoring solution covers 57 sites for an energy bill of € 1.2M per year. Approximately 1000 equipments have been deployed to form an architecture for collecting and transmitting energy data from buildings. The back-up architecture has been adapted on a case-by-case due to the heterogeneity of existing buildings. Systemes can be remote meter reading, radio and GPRS links , the repatriation of data from building management system (BMS) or communicating controllers. All data is collected and centralizedin an SaaS software (software as a service) for energy management. Some grey areas are still monitored using flying probes and ponctual analyzes.
The return on investment is estimated at 3 years (excluding internal costs). The system has been in place for more than a year, and the savings target set at 19% will be met. Among the very profitable actions, the monitoring made it possible to detect numerous anomalies setting of the equipment. For example, at a site, over-ventilation was maintained throughout the heating period while it is intended to chase heat in summer! Result: 600 € of savings each month. It is not uncommon to wait for 20% savings thanks to simple modifications of setpoints on the equipment: reduced at night, air … Finally, energy savings are not the only benefits gained, we have also gained in speed of interventions (internal and external), reduced waste due to water leakage, increased the quality control of archives and improved the continuous monitoring of photovoltaic production.

The energy monitoring allows to have a better control our consumption and better understand the behavior of buildings. However, a period of 3 years of operation will certainly be necessary to obtain a complete results of the approach. We conduct studies in parallel to obtain the energy signatures of our main sites. Our objective is to renegotiate all operating contracts by the end of 2017 in order to switch to profit-sharing operating contracts.
Pictures, videos

GP O-3

Good practice #O-3MIUSEEC
Main institution involved Nobatek INEF4
Field:
Energy monitoringX Financial monitoring
Location Bordeaux / Nouvelle Aquitaine / France
(not available)
Timescale 2016 - ongoing
Good practices categories
1-Good Practice measurement (hardware) X 5-Good data (energy and/or financial) collections system X
2-Good software 6-Good energy and/or financial indicators and/or ergonomy X
3-Good financial tools 7-Good data analysing system X
4-Good organisation and management 8-Good use of data X
Abstract or Summary (not available)
Financial scheme(not available)
Further informations(not available)
Contact detailsname of the organisation or partner, email, phone… where any interested can get more detailed info about the GP
Long description (not available)
Pictures, videos
other-good-practices.txt · Dernière modification: 2018/02/14 18:03 par 77.159.16.114