# Overview of the Results

Consumption(Production) | Savings (Use) | Positive Factor(Balance) | |

Primary energy | 0.12 MJ | 19231 MJ | x 160000 |

CO_{2} equivalents | 5.9 g | 1223 kg | x 204000 |

Water consumption | 30.3 ml | 790 l | x 26000 |

The production of a NEOPERL^{®} flow regulator consumes 0.12 MJ of primary energy, causes 5.9 g CO_{2}-equivalent GHG emissions, and consumes 30.3 ml of water.

In contrast, the savings achieved by the use of a flow regulator amount to 19231 MJ primary energy, 1223 kg CO_{2 }equivalents and 790 litres of water consumption (as well as 166200 litres of water use).

# The Details of the Scientific Study

The scientific study was conducted by the Technische Universität, Department of Environmental Technology under the supervision of Dr.-Ing. Markus Berger. In calculating the water and energy consumption and the greenhouse gas emissions, the study takes the entire product life cycle of a NEOPERL^{®} SHL-C 2.5 gpm flow regulator into account – from the production of raw materials, to material production, transportation and assembly, on up to its disposal.

Water consumption was calculated under the following assumptions:

- Two-person household
- Each person takes a daily five-minute shower, 300 days per year, calculated over a period of ten years
- Flow rate of 15.0 l/min without a flow regulator, 9.5 l/min with a flow regulator ⇒ results in water savings of 166200 litres over a period of ten years
- Inlet water temperature of 10 °C and a shower temperature of 37 °C
- Specific heat capacity of 4.19 kJ/(kg K) ⇒ 4,831 kWh thermal energy saved

The GaBi6 software from Thinkstep (2014) served as the basis for the calculations. GaBi contains a comprehensive, annually updated database in which the environmental profiles of numerous materials and energy sources are stored.