DeltaE Engineering Office offers solutions to meet Green Key’s water and energy ecological criteria. We offer solutions for the following criteria:
Measurement and visualization of energy:
The company measures, registers and analyzes its energy consumption (heat and electricity) on a monthly basis and, if necessary, takes measures to reduce energy consumption.
With the help of DeltaE electricity monitoring solutions, it is possible to identify how electricity consumption is distributed between building parts and technical systems.
The energy consumption of minibars purchased in the last 12 months shall not exceed 1 kWh per day.
DeltaE offers solutions for measuring and analyzing energy consumption. In addition, recommendations are made to reduce energy consumption.
Heating, ventilation, cooling systems
The company has written procedures for the energy use and heating/cooling of empty bedrooms.
The company has set standard temperatures for cooling and heating the rooms.
DeltaE engineers develop energy efficiency projects and find ways to recover waste heat in their facility. We also sell water saving solutions.
Heating and air-conditioning control systems are implemented according to the seasons or when the company’s premises are not in use.
Hallway and corridor lighting shall have at least 75% covered with motion sensors.
Lighting in public indoor areas that is not necessary for security purposes is automatic (e.g. timers, motion sensors).
At least 75% of electric lamps are energy efficient (e.g. energy saving or LED lamps).
Exterior lighting is minimal or an automatic shut-off sensor is installed.
By controlling the lighting, energy savings of up to 70% can be achieved. In addition, it is possible to reduce the need for cooling the luminaires and support the circadian rhythm of the employees.
The grease filters in the exhaust system are cleaned at least once a year.
The surfaces of the heating or cooling exchanger of the ventilation system are cleaned at least once a year.
The advantage of technical maintenance is a comprehensive overview of the various systems of the building (heating, ventilation, water, technical systems automation, sewerage and electricity system, etc.) by the maintenance provider.
The ventilation system is regularly maintained to ensure energy efficiency at all times.
To reduce the likelihood of system failures occurring or destroying, DeltaE engineers perform regular inspections, checks, cleanups, and troubleshooting of the system.
Water measuring and consumption
The company measures, records and analyzes its water consumption on a monthly basis and, if necessary, takes measures to reduce water consumption.
The amount of water per draw of toilet bowls purchased up to 12 months ago and newly purchased does not exceed six liters (6 l).
Water-saving solutions reduce water consumption by up to 70% without compromising user comfort. The payback time for water saving solutions is fast: from 12 days to a few months.
The company has no dripping taps and leaking toilets.
The amount of water in room showers shall not exceed nine liters (9 l) per minute in 75% of rooms and at least 75% of screens shall not exceed 8 liters per minute (8l/min).
To save water, sink faucets use aerator nozzles that mix the water with the air so that the amount of water is reduced, but the user does not feel it due to the air jet.