Methods and systems for determining a hosting capacity in a distribution grid are disclosed herein. The methods and systems may use optimization models that consider operating conditions of a distribution grid having a distinct topology, characteristics, and predetermined performance parameters. The determination of a hosting capacity may first consider a lossless power flow model for the distribution grid, which may then be used to arrive at a maximum hosting capacity for the distribution grid. The maximum hosting capacity may be defined as the total capacity of a number of distributed generators connected to the distribution grid such that the performance parameters will be met.
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase
H02J 3/50 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante déphasée
Technologies are provided for reporting, monitoring, analyzing performance of distributed energy resources (DERs). The monitoring and analysis of a DER can be performed in real-time or essentially real-time. The monitoring also can include health monitoring of a DER. The reporting of performance of a DER is configurable. The monitoring and analysis of performance of the DER also is configurable. Attributes that control the reporting, monitoring, and analysis can be interactively configured via user interfaces having one multiple control elements. Performance of a DER can be reported, monitored, and analyzed irrespective of manufacturer of the DER.
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
A template device having a plate and a pattern of openings defined within the plate. The plate has a first section, a second section, a third section, and first and second ends oppositely disposed. The first section includes the first end, the second section includes the second end, and the third section is positioned between the first and second sections. The pattern of openings corresponds to positioning of bolt holes within a bar of a bar-type current transformer assembly. The pattern of openings includes: a first plurality of openings positioned in the first section and configured to overlie holes defined within a first portion of the bar of the current transformer assembly; and a second plurality of openings positioned in the second section and configured to overlie holes defined within a second portion of the bar of the current transformer assembly.
An apparatus may include a controller and a relay device for measuring voltages associated with a battery and determining resistances associated with the battery that can be used to determine whether there is a battery ground associated with the battery. The relay device may comprise one or more switches that may be coupled to the battery for measuring the voltages. The relay device may be configured to implement an automated configuration sequence of one or more configurations of the one or more switches in order to the measure voltages. The controller may determine resistance values based on the measured voltages values. Based on comparing the resistance values to a threshold, one or more battery grounds of the battery may be determined and a notification may be output based on the detected one or more battery grounds.
G01R 31/3835 - Dispositions pour la surveillance de variables des batteries ou des accumulateurs, p. ex. état de charge ne faisant intervenir que des mesures de tension
G01R 31/389 - Mesure de l’impédance interne, de la conductance interne ou des variables similaires
5.
METHODS, SYSTEMS, AND APPARATUSES FOR HARVESTING WIRELESS ENERGY
H02J 50/10 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif
B60L 53/34 - Dispositifs du type fiche ou prise spécialement adaptés à la charge sans contact par induction de véhicules électriques
B60L 53/38 - Moyens pour l’ajustement automatique ou assisté de la position relative des dispositifs de charge et des véhicules spécialement adaptés au chargement en utilisant le transfert d'énergie par induction
Methods and systems for determining a hosting capacity in a distribution grid are disclosed herein. The methods and systems may use optimization models that consider operating conditions of a distribution grid having a distinct topology, characteristics, and predetermined performance parameters. The determination of a hosting capacity may first consider a lossless power flow model for the distribution grid, which may then be used to arrive at a maximum hosting capacity for the distribution grid. The maximum hosting capacity may be defined as the total capacity of a number of distributed generators connected to the distribution grid such that the performance parameters will be met.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase
H02J 3/50 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante déphasée
8.
METHODS AND SYSTEMS FOR ENHANCING ASSET RESOURCE RESILIENCY
Methods, systems, and apparatuses for predicting an estimate of a number of equipment outages affected by severe weather events. Resource data associated with weather data and equipment data may be used to train a predictive model. The predictive model may be trained to output a prediction indicative of a number of equipment outages associated with an area affected by a severe weather event.
G06N 5/022 - Ingénierie de la connaissanceAcquisition de la connaissance
G01W 1/06 - Instruments pour indiquer des conditions atmosphériques par mesure de plusieurs variables, p. ex. humidité, pression, température, nébulosité ou vitesse du vent donnant l'indication des conditions météorologiques par combinaison des variables mesurées
9.
METHODS AND SYSTEMS FOR A MOBILE SMART METER AND A SMART METER OUTLET
Methods, systems, and apparatuses are described for using a portable smart meter configured to connect an electric vehicle (EV) to an outlet at a service location associated with a service owner in order to charge or discharge a battery of the EV. The portable smart meter may be further configured to determine an amount of energy used to charge the battery of the EV, or the amount of energy discharged from the battery, via the outlet at the service location in order to bill an owner of the EV based on the amount of energy used to charge the battery instead of the service owner or credit the owner of the EV based on the amount of energy discharged from the battery.
Technologies are provided for circuit topology detection in an electric power circuit. In some embodiments, a computing device can access phasor data associated with the electric power circuit including an arrangement of switching devices and multiple phasor measurement units. The computing device also can access threshold data defining individualized zero-current threshold values for respective ones of the multiple phasor measurement units. The computing device can determine one or more zero-current branches present in the arrangement of switching devices by applying the individualized zero-current thresholds to the accessed phasor data. The computing device can further determine, based on the one or more zero-current branches a circuit topology corresponding to the arrangement of switching devices.
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
11.
Passive optical network for utility infrastructure resiliency
A secure tiered, robust, and deterministic converged communications architecture with the capacity to support a plurality of power distribution automation devices/components with fiber-enabled fail-over protection is described.
Technologies are provided for reporting, monitoring, analyzing performance of distributed energy resources (DERs). The monitoring and analysis of a DER can be performed in real-time or essentially real-time. The monitoring also can include health monitoring of a DER. The reporting of performance of a DER is configurable. The monitoring and analysis of performance of the DER also is configurable. Attributes that control the reporting, monitoring, and analysis can be interactively configured via user interfaces having one multiple control elements. Performance of a DER can be reported, monitored, and analyzed irrespective of manufacturer of the DER.
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/16 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par réglage de puissance réactive
14.
Passive optical network for utility infrastructure resiliency
A secure tiered, robust, and deterministic converged communications architecture with the capacity to support a plurality of power distribution automation devices/components with fiber-enabled fail-over protection is described.
A secure tiered, robust, and deterministic converged communications architecture with the capacity to support a plurality of power distribution automation devices/ components with fiber-enabled fail-over protection is described.
A secure tiered, robust, and deterministic converged communications architecture with the capacity to support a plurality of power distribution automation devices/ components with fiber-enabled fail-over protection is described.
A secure tiered, robust, and deterministic converged communications architecture with the capacity to support a plurality of power distribution automation devices/components with fiber-enabled fail-over protection is described.
Machine learning may be used to forecast an estimated time of restoration (ETR) during a service interruption. To forecast an ETR, the collection of information from the multiple sources may be provided as inputs to a machine learning model, such as a deep long-short term memory recurrent neural network, a predictive model, and/or the like. The machine learning model may be trained to optimize the temporal cost function of sustained service interruptions and forecast ETRs for service interruptions (in minutes). The machine learning model may process data/information in real-time and provide an ETR when inputs are not yet available in the repair/resolution process, and update (reforecast) the ETR in real-time as the inputs late become available.
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Providing information and advice regarding the efficient use of energy, namely providing information in the field of energy efficiency and consultation in the field of energy efficiency; distributorship services in the field of energy; business consulting services in the field of efficient energy use, energy management and conservation on behalf of residential, industrial and commercial customers, namely, business consulting and advisory services in the field of energy efficiency; promoting the interests of people and businesses concerned with energy conservation and energy management by means of providing information in the fields of energy consumption and usage conservation to improve energy efficiency and providing economic incentive award programs to electricity users to promote the sale of energy conservation and energy management products and services of others; business consulting services in the field of energy conservation, namely, business consulting services in the field of energy efficiency; business consultation services in the field of energy use, conservation and management, namely, business consulting and advisory services in the field of energy efficiency; providing a website featuring an online business directory to assist customers in locating energy suppliers; providing a website featuring information about energy usage management, energy efficiency, namely, providing online information in the field of energy efficiency; Consulting services in the cost management of energy; and providing information and advice regarding the efficient use of energy, namely, providing information in the field of energy efficiency, and consultation in the field of energy efficiency Public utility services; Public utility services in the nature of electricity and natural gas distribution to residential, industrial and commercial customers; distribution of electricity and energy, and utility services in the nature of transmission of electricity; consultation services in the field of energy distribution, namely, consultation for residential, commercial, and industrial electricity users on energy distribution; providing a website featuring information regarding public utility services, namely, providing information about electricity transmission and distribution, and natural gas distribution; distribution of energy, namely, electricity distribution Providing a website featuring information about electric utility meter reading and engineering information about building design; automated and remote utility meter reading services; technical support services, namely, remote monitoring of electric and natural gas metering systems for the purposes of improving electric and natural gas reliability and outage detection, improving customer service, providing online access to energy usage, reducing the cost of electricity and natural gas, and providing more accurate customer usage data and bills, and detection of electric power and natural gas outages; providing a website featuring information in the field of engineering and design of electric transmission and distribution systems and natural gas distribution systems; providing a website featuring information regarding environmental assessment and planning for the energy industry; conducting energy audits, namely, energy auditing
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Providing information and advice regarding the efficient use of energy, namely providing information in the field of energy efficiency and consultation in the field of energy efficiency; distributorship services in the field of energy; business consulting services in the field of efficient energy use, energy management and conservation on behalf of residential, industrial and commercial customers, namely, business consulting and advisory services in the field of energy efficiency; promoting the interests of people and businesses concerned with energy conservation and energy management by means of providing information in the fields of energy consumption and usage conservation to improve energy efficiency and providing economic incentive award programs to electricity users to promote the sale of energy conservation and energy management products and services of others; business consulting services in the field of energy conservation, namely, business consulting services in the field of energy efficiency; business consultation services in the field of energy use, conservation and management, namely, business consulting and advisory services in the field of energy efficiency; providing a website featuring an online business directory to assist customers in locating energy suppliers; providing a website featuring information about energy usage management, energy efficiency, namely, providing online information in the field of energy efficiency; Consulting services in the cost management of energy; and providing information and advice regarding the efficient use of energy, namely, providing information in the field of energy efficiency, and consultation in the field of energy efficiency Public utility services; Public utility services in the nature of electricity and natural gas distribution to residential, industrial and commercial customers; distribution of electricity and energy, and utility services in the nature of transmission of electricity; consultation services in the field of energy distribution, namely, consultation for residential, commercial, and industrial electricity users on energy distribution; providing a website featuring information regarding public utility services, namely, providing information about electricity transmission and distribution, and natural gas distribution; distribution of energy, namely, electricity distribution Providing a website featuring information about electric utility meter reading and engineering information about building design; automated and remote utility meter reading services; technical support services, namely, remote monitoring of electric and natural gas metering systems for the purposes of improving electric and natural gas reliability and outage detection, improving customer service, providing online access to energy usage, reducing the cost of electricity and natural gas, and providing more accurate customer usage data and bills, and detection of electric power and natural gas outages; providing a website featuring information in the field of engineering and design of electric transmission and distribution systems and natural gas distribution systems; providing a website featuring information regarding environmental assessment and planning for the energy industry; conducting energy audits, namely, energy auditing
A cover mountable over a sensor includes a hood and a baffle. The cover is adapted to create a barrier between the sensor and ambient light. The hood surrounds an interior volume for receiving the sensor. The baffle has a sidewall that surrounds an opening providing access to the volume.
Methods and systems are described for determining value and placement of Distributed Energy Resources (DERs) for a plurality of lines connected to a plurality of nodes based on real and reactive power flow and an amount of overload for time segments of a time period, and further causing a DER injection at one or more candidate nodes to alleviate the overload.
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Charitable services, namely, providing solar energy products and services, energy generated from photovoltaics, monetary reimbursements and credits, all free of charge to low-income customers through a customer assistance program
Methods and systems are disclosed for determining active and/or reactive power flows in a distribution line of a distribution network. The determined power flows may be linear in nature, and they may further be used to determine an overall network power flow for the distribution network. Further, the network power flow can be used to determine a voltage magnitude for any distribution bus in the distribution network. The methods and systems are capable of considering a plurality of sensitivity factors that may affect one or more distribution buses.
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
G05B 15/02 - Systèmes commandés par un calculateur électriques
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 25/00 - Dispositions pour procéder aux mesures de l'angle de phase entre une tension et un courant ou entre des tensions ou des courants
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
27.
METHODS AND SYSTEMS FOR ASSESSING HOSTING CAPACITY IN A DISTRIBUTION SYSTEM
Methods and systems are described for determining a distribution system's hosting capacity for distributed power generation. Hosting capacity may be assessed on a feeder-by-feeder basis. Performing a hosting capacity assessment may include randomly selecting spot load points in a feeder as candidates for installation of distributed power generation sources. The hosting capacity assessment may be repeated a number of times to ensure optimal results and to correct for any violations of system performance parameters caused by an addition of distributed power generation at a given spot load point.
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
G01R 21/133 - Dispositions pour procéder aux mesures de la puissance ou du facteur de puissance en utilisant des techniques numériques
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
28.
Methods and systems for determining distribution grid hosting capacity
Methods and systems for determining a hosting capacity in a distribution grid are disclosed herein. The methods and systems may use optimization models that consider operating conditions of a distribution grid having a distinct topology, characteristics, and predetermined performance parameters. The determination of a hosting capacity may first consider a lossless power flow model for the distribution grid, which may then be used to arrive at a maximum hosting capacity for the distribution grid. The maximum hosting capacity may be defined as the total capacity of a number of distributed generators connected to the distribution grid such that the performance parameters will be met.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase
H02J 3/50 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante déphasée
29.
Methods and systems for determining economic viability of microgrid
Methods and systems for evaluating economic viability of a proposed microgrid, including uncertain variables are disclosed. One or more candidate distributed energy resources can be selected for use within a proposed microgrid. An investment cost and an operation cost of the one or more candidate distributed energy resources can be determined. A cost of drawing power from a main power grid can be compared to a sum of the investment cost and the operation cost of the one or more candidate distributed energy resources. The proposed microgrid can be identified for installation when the sum of the investment cost and the operation cost is less than the cost of drawing power from the main power grid.
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
Methods and systems for evaluating economic viability of a proposed microgrid, including uncertain variables are disclosed. One or more candidate distributed energy resources can be selected for use within a proposed microgrid. An investment cost and an operation cost of the one or more candidate distributed energy resources can be determined. A cost of drawing power from a main power grid can be compared to a sum of the investment cost and the operation cost of the one or more candidate distributed energy resources. The proposed microgrid can be identified for installation when the sum of the investment cost and the operation cost is less than the cost of drawing power from the main power grid.
Methods and systems for evaluating economic viability of a proposed microgrid, including uncertain variables are disclosed. One or more candidate distributed energy resources can be selected for use within a proposed microgrid. An investment cost and an operation cost of the one or more candidate distributed energy resources can be determined. A cost of drawing power from a main power grid can be compared to a sum of the investment cost and the operation cost of the one or more candidate distrib - uted energy resources. The proposed microgrid can be identified for installation when the sum of the investment cost and the opera- tion cost is less than the cost of drawing power from the main power grid.
A pulley system is provided to encourage contact between a pulley and a rope, chain, cord, cable and the like. The pulley system has first and second side legs, an axle, a pulley and at least one guide member. The guide member can be coupled to or formed integrally with at least one of the side legs. The guide member has at least one wall extending outwardly and away from the radial direction of the pulley to act as a funnel and encourage contact between a rope, chain, cable and the like and the pulley, thereby reducing the amount of force required to pull the item.
B66D 3/04 - Moufles ou dispositifs similaires dans lesquels la force est appliquée à une corde, un câble ou une chaîne qui passe sur une ou plusieurs poulies, p. ex. pour obtenir une démultiplication
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
Produits et services
Promoting public awareness of the need for energy efficiency, namely, through the administration of a program that enables participants to obtain discounts through price subsidies to retailers that sell qualified compact fluorescent light bulbs; energy use management services; promoting public awareness of the need for energy efficiency to commercial and industrial customers, namely, administration of a program offering fixed incentives for energy efficiency technologies pertaining to heating, ventilation, air conditioning, lighting, refrigeration systems, motors, variable speed drivers, plug-load occupancy sensors, and custom incentives based on specific customer requirements to achieve energy efficiency upgrades to specialized machines, processes and procedures; consultation in the field of energy efficiency, namely, evaluation of existing building systems for the purpose of determining facility improvements needed to improve energy use and efficiency in the nature of operational and low cost energy-saving measures, and implementation of occupancy based operations Recycling services offered as a component of a program to promote public awareness of the need for energy efficiency, namely, collection, removal and disposal of unwanted or donated home appliances, and broken and burned-out compact fluorescent light bulbs; direct installation of energy efficient technologies and measures in single family homes and multi-family units, namely, HVAC system installation services via qualified third-party contractors, HVAC tune-ups and repair, installation of compact fluorescent light bulbs, installation of high-efficiency aerators for sinks, installation of energy efficient showerheads, and installation of energy-efficient wraps for electric water heaters; service incentive for commercial and industrial customers to retro-commission existing non-residential buildings, namely, commercial and industrial energy assessment services for the purpose of determining improvements in non-residential buildings needed to improve energy use and efficiency, and repair of building system components and improperly configured or installed technologies, namely, heating, ventilation, air conditioning and lighting control systems; building construction, remodeling and repair relating to energy saving improvements Public utility services
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
Produits et services
[Energy efficiency kits for small businesses and residential customers comprised primarily of printed informational letters, pamphlets, note cards, and printed instructional materials containing information about energy-efficient products, methods for obtaining energy savings, and direct installation of energy-efficient equipment and apparatus, and also including compact fluorescent light bulbs, refrigerator thermometers, furnace filter whistles, and light-emitting-diode nightlights to enable small businesses and residential customers to achieve greater energy efficiency] Promoting public awareness of the need for energy efficiency, namely, through the administration of a program that enables participants to obtain discounts through price subsidies to retailers that sell qualified compact fluorescent light bulbs; energy use management services; promoting public awareness of the need for energy efficiency to commercial and industrial customers, namely, administration of a program offering fixed incentives for energy efficiency technologies pertaining to heating, ventilation, air conditioning, lighting, refrigeration systems, motors, variable speed drivers, plug-load occupancy sensors, and custom incentives based on specific customer requirements to achieve energy efficiency upgrades to specialized machines, processes and procedures; consultation in the field of energy efficiency, namely, evaluation of existing building systems for the purpose of determining facility improvements needed to improve energy use and efficiency in the nature of operational and low cost energy-saving measures, and implementation of occupancy based operations Recycling services offered as a component of a program to promote public awareness of the need for energy efficiency, namely, collection, removal and disposal of unwanted or donated home appliances, and broken and burned-out compact fluorescent light bulbs; direct installation of energy efficient technologies and measures in single family homes and multi-family units, namely, HVAC system installation services via qualified third-party contractors, HVAC tune-ups and repair, [ installation of compact fluorescent light bulbs, ] installation of high-efficiency aerators for sinks, installation of energy efficient showerheads, and installation of energy-efficient wraps for electric water heaters; service incentive for commercial and industrial customers to retro-commission existing non-residential buildings, namely, commercial and industrial energy assessment services for the purpose of determining improvements in non-residential buildings needed to improve energy use and efficiency, and repair of building system components and improperly configured or installed technologies, namely, heating, ventilation, air conditioning and lighting control systems; building construction, remodeling and repair relating to energy saving improvements Public utility services
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
public utility services [ design and development of new products and services for others in the field of energy management relating to the control, production, use and conservation of energy and consultation relating thereto ]
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
public utility services [ design and development of new products and services for others in the field of energy management relating to the control, production, use and conservation of energy and consultation relating thereto ]
