Water Efficiency Calculation

Water Efficiency Calculations

Why do you need Water Efficiency Calculations?

Water efficiency is the act of reducing water waste by measuring the amount of water required for a particular purpose and the amount of water actually used or delivered.

Water Efficiency Calculations provide results based on occupancy, fittings and flow rates within the water efficiency calculator and assess compliance against the water performance targets in Building Regulations Part G.

Part G of the Building Regulations insists that if you are building a new home, you must ensure that it has a predicted water consumption of 125 litres /person/day. However, some buildings and developments may need to meet a different target depending upon planning conditions.

Non-compliance can also affect a property’s Standard Assessment Procedure (SAP) calculation, as well as it’s Energy Performance Certificate (EPC) rating.

There are a number of measures which can be taken to improve indoor water use and we can help you to identify more water efficient technologies and appliances to get your rating to the desired level for planning reporting.

For instance water efficiency can be achieved by using improved technology, for example installing water-efficient appliances like washing machines and dishwasher. These models will get your dishes and clothes just as clean but will use less water doing it.

Flow restrictors, low flow shower heads and low flush W/Cs are also a convenient means of improving water efficiency in a property.


How can we help?

Base Energy provide Water Efficiency Calculations and reports in line with Building Regulations Part G to ensure a smooth, seamless submission to satisfy Building Control.

We can also suggest and specify practical solutions and products which are cost-effective and efficient.

In addition to this, we will provide advice and diagnostic work if your building is currently not achieving your specified requirement.


If you would like to discuss a Water Efficiency Calculation with one of our specialist consultants, please call us on 020 3286 2016 or email info@baseenergy.co.uk and we will get back to you within the same working day.

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