In Good Water: why drink tap water
In 2018, for the tenth consecutive year, Hera published the “In buone acque” (In Good Water) report, dedicated to telling users about the quality and transparency of the process that brings tap water into our homes every day. The report is still the first and only Italian report published on the subject of tap water and the benefits of drinking it instead of bottled water, in both environmental and economic terms.
On the basis of the new data for 2017, it has once again shown that the mains water in Hera’s service area is a good, convenient, widespread, safe and inexpensive resource, as well as being rich in trace elements and low in sodium, comparable in quality to the leading bottled waters on the market. Reassuring results, guaranteed by 2,800 analyses per day (including those done by the Local Healthcare Authorities) on tap water (carried out by Hera, by ASL – the local health authorities, and by Romagna Acque) proven by the fact that 99.9% of the checks carried out showed the water is compliant with the water quality standards set by law.
The report also contains, area by area, the data of the analyses of all the 29 parameters. The analyses also concern pesticides and parameters not required by law, such as emerging pollutants and asbestos fibre: again, the results confirmed the quality and safety of the mains water distributed by Hera.
The report, with extended contents in its online version, shows that besides being a safe choice for health and sustainable for the environment, drinking tap water is also good for our customers’ wallets. In fact, tap water in Hera’s service area makes it possible to avoid the production, transport and disposal of almost 250 million plastic bottles that would fill over 3 million bins and to save on average up to Euro 300 per year, for a family of 3 people.
To ensure maximum transparency and reliability of the data reported, the report was examined and certified by DNV GL.
The extended contents of the report are available at www.gruppohera.it\report.
Plan for the resilience of electricity grids
The work Plan for increasing the resilience of the Inrete electrical system was developed in accordance with the ARERA Guidelines annexed to DIEU no. 2 of 7 March 2017 and with Resolution 668/2018/R/eel of 18 December 2018.
The Plan takes into account only the risk factor arising from the formation of ice and snow sleeves; the corresponding mechanical stress on the conductors of overhead power lines have been calculated in accordance with the provisions of the standards EN 50341-1 and EN 50341-13.
The scope of the Plan was defined on the basis of the mechanical stress and the mechanical characteristics of the conductors, the geometric characteristics of the lines and their geographical and altimetric location. It includes the municipalities of Fanano, Fiumalbo, Guiglia, Lama Mocogno, Montecreto, Montese, Pavullo nel Frignano, Pievepelago, Polinago, Riolunato, Sestola and Zocca.
The Secondary Cabins included in the scope of the Plan have been identified as those that supply the most critical low-voltage users, for whom measures are necessary to reduce the risk of disruption to acceptable levels by upgrading the power supply lines.
The type of measures adopted to address such critical issues consists in replacing the sections of bare overhead conductors whose sections are not suitable to withstand the stresses considered, with overhead cables with spiral reinforcements of an appropriate section, initially expected to follow the same route of the existing lines.
We analysed the medium-voltage distribution network to identify the measures, considering the best power supply route for the most critical stations, along which all the sections of overhead conductors with an unsuitable section were identified and which must therefore be replaced with overhead cables with spiral reinforcements.
The Plan involves the refurbishment of 8 lines, covering the period 2018-2023.
At Hera we drink tap water
The Hera2O project, launched in 2008, encourages Hera’s employees to drink tap water. By drinking over 506 thousand litres of tap water in 2018 from the 118 dispensers installed in Hera’s canteens and offices, workers avoided the production of more than 16 tonnes of plastic, equivalent to around 510 bins, and over 780 plastic bottles (0.5 litre bottles were considered for canteens and individual use, and 1.5 litre bottles for offices and meeting rooms). This virtuous behaviour generated an energy savings of approximately 52 tonnes of oil equivalent and reduced greenhouse gas emissions by 146 tonnes.
Residents can also have good and checked drinking water by obtaining it from the Urban Springs, public dispensers of drinking water, located throughout Hera Group’s service area. The water they provide is identical to that in the taps of homes but is cooler (refrigerated) and sparkling water is also dispensed. In 2018, there were 69 “Urban Springs” in the area served by Hera Group while there were 5 dispensers in the area served by AcegasApsAmga; the number of “Urban Springs” set up jointly with Marche Multiservizi increased to a total of 15.
We would like to mention the considerable environmental benefits deriving from the decision to drink tap water, which is good, safe and scrupulously checked by the Hera Group. For example, in 2018 the Group’s “Urban Springs” supplied a total of more than 20.7 million litres of water, 30% of which was sparkling water, determining a remarkable saving in terms of plastic, as that amounts to over 13.8 million bottles, and in turn means around 17,200 fewer bins to empty (bins with an average capacity of 800 1.5 litre PET bottles), thus reducing CO2 emissions by over 2,500 tonnes. The savings for families, of the average expense to purchase mineral water, is around Euro 3.8 million.