Complex Energy efficiency investments at ETA2U

Complex Energy efficiency investments at ETA2U

ETA2U

Complex Energy efficiency investments at ETA2U

Contribution to the Virtual Power Plant 131,3 kWp

ETA2U is the main Romanian IT systems and solutions integrator, IT products and services provider and one of the most certified companies on the Romanian IT market (technical, business and quality).

The company has the following certifications:

  • SR EN ISO 9001:2015 Quality Management Systems
  • SR EN ISO 14001:2005 Environmental Management Systems
  • SR OHSAS 18001:2008 Occupational Health and Safety Management Systems
  • ISO/IEC 20000-1:2011 Information Technology – Service Management
  • ISO 22301:2012 Societal Security – Business Continuity Management Systems
  • SR ISO/CEI 27001:2013 Information Technology — Security Techniques — Information Security Management Systems

Obtaining ISO 50001 certification is one of the short-term goals. In this line, energy managers have started two major projects at the company’s branches:

  • Lighting modernization – 2018/2019;
  • Data Center energy consumption optimization – 2019/2020.

These two projects were preceded by the installation of an energy consumption monitoring system. Monitoring devices were installed at key points (main distribution boards) and where needed monitoring was carried out at lower levels of consumption (secondary distribution boards – e.g. lighting circuits). Graphics from a monitoring device can be seen below.

Fig. 1. Current monitoring – main distribution board
Fig. 2. Active power – main distribution board
Fig. 3. Reactive power – main distribution board
Fig. 4. Current monitoring – secondary distribution board – circuit 1
Fig. 5. Current monitoring – secondary distribution board – circuit 2
Fig. 6. Current monitoring – secondary distribution board – circuit 3

Lighting modernization – 2018/2019

By investing at the headquarters, 200 fluorescent light fixture (fig. 7) were replaced (4 x 18 W), maximum total output 14.4 kW. This means 42 MWh energy consumption per year, if we consider an average of 8 work hours per day.

Fig. 7. Fluorescent light fixture

Installing LED lighting panels (fig. 8) and optimizing the number of luminaires achieved part of the efficiency. As a result of the optimization the number of luminaires was reduced by about 20% (from 200 to 160).

Fig. 7. LED lighting panel

Following the implementation in the office area, we saved about 19.6 MWh/year. 

By mounting motion and twilight sensors (bathrooms, outside), we saved about 9.7 MWh/year.

Energy efficiency investments at ETA2U contributed 29.3 MWh to the Virtual Power Plant.

Data Center energy consumption optimization – 2019/2020

This ongoing project focuses on energy consumption optimization in our Data Center (45 kW). Within this project network equipment will be replaced and HVAC will be optimized, also a reactive power compensation system will be installed.

Total energy savings- contributed to the VPPP:

Electricity: 553,2 MWh

Heating energy: 1022,4 MWh

PVPPP= QVE x η / τCS

Where: 

PVPPP – Energy Saving accounted in the Virtual Power plant

QVE – The full energy saving, meaning the basis of the calculations

η – average powerplant efficiency

τCS – annual peak hours of the power plant

The contribution to the powerplant is: 131,3 kWp