Case study

Share

How we cut water costs in half for Sawston Village College.

Discover how a water survey uncovered hidden inefficiencies that delivered annual savings of £6,270.

Read time - 2 minutes
How we cut water costs in half for Sawston Village College.
Annual cost savings
£
6,270
Reduction in water costs
48
%
Investment cost
£
1,000

Sawston Village College, part of the Anglian Learning Trust, plays a key role in its local community. Not only does the secondary school educate more than 1,000 pupils, but it serves the local community, with a well-equipped sports centre that hosts clubs, children’s parties and events, and even a cinema run by students.

Recognising the importance of conserving water, Zenergi was invited to carry out a water survey to identify opportunities for improvement.

What we found

We carried out a water benchmarking exercise, comparing the annual m³ of water for each pupil to standard benchmark figures. The analysis revealed that the school was using more water than expected for a secondary school with a swimming pool.

Analysis of the monthly consumption profile highlighted that over two years the monthly water consumption remained consistent, without the typical reduction that would be expected during the school holidays.

The analysis also showed that during the COVID-19 lockdowns, when fewer pupils were on-site, water usage didn’t decrease accordingly.

And finally, we saw that around 460 litres of water was being used every hour – even when the school was closed.

All of these discoveries pointed to inefficiencies and redundant waste water.

To support our Environmental and Sustainability Policy, we undertook water surveys. The surveys suggested easy and cost effective solutions across key sites where losses were identified. Our investment was very beneficial to the Trust to establish our benchmark and identify low cost saving opportunities.

Claudine Bateman

Director of Operations

Anglian Learning

The bigger issue

Water conservation is more important than ever; we’re facing a shortfall and there isn’t going to be enough water to meet demand in the decades to come. It is therefore vitally important that schools take steps to minimise water wastage.

Key facts from our water survey:

  • 460 litres of water wasted every hour, even when the school was closed.
  • Water consumption that didn’t drop during school holidays and lockdowns.

Small changes, big results

With some low-cost measures, we found savings of £6,270 per year. With an investment of just £1,000, these measures would deliver a return on investment in just a few months and a reduction in water costs of nearly half (48%).

Water conservation often takes a backseat to energy efficiency. But Sawston Village’s story shows how even a small investment can deliver big results, not just financially but environmentally too.

Ready to learn more? Start a conversation with one of our experts today.

Get in touch

How we delivered Sawston Village College's water savings

Water Procurement

Water Procurement

Water Procurement

Water Procurement

Navigating the complexities of water procurement can be time-consuming and challenging, with countless supplier options, varying service levels, diverse quotes, and differing payment terms to consider. Our team simplifies the process by providing like-for-like comparison quotes, ensuring transparency and informed decision-making. We can also offer bill validation and benchmarking of your consumption, identifying any potential inefficiencies or leaks.
Find out more

Related case studies

Glenmorangie: Cutting energy costs in half through strategic building optimisation.

Glenmorangie sought a focused solution to improve energy efficiency and reduce costs. By working closely with the team at Zenergi, the strategic building optimisation resulted in a 59% reduction in electricity consumption and a 52% reduction in gas usage.

Read the full story

How we helped Danes Educational Trust secure £166,000 for carbon reduction.

From winning grants to driving decarbonisation, understand how we helped Danes Educational Trust achieve its energy efficiency goals.

Phase 2 LCSF grant awarded
£
39,000
Read the full story

Leigh Academies Trust saves £500,000+ through flexible energy purchasing.

Discover how a 10+ year partnership helped one of the country’s largest and most established Multi-Academy Trusts navigate a turbulent energy market

Achieved savings: Year one
£
399,311
Read the full story

PR Associates: Driving compliance and energy efficiency in schools.

Zenergi’s services for PR Associates keep schools up to date with energy compliance, as well as driving energy efficiency to reduce costs and carbon emissions.

Read the full story

Shropshire Council: Supporting targeted energy efficiency and public sector compliance.

Zenergi supports Shropshire Council’s vision to stabilise and progressively reduce its environmental footprint., with the provision of Display Energy Certificates, which it has carried out for the Council for over 10 years. 

Read the full story

Reading Borough Council: Future-proofing buildings to comply with 2030 energy efficiency targets.

Zenergi carried out the delivery of commercial Energy Performance Certificates for 52 properties in Reading to meet compliance with the Minimum Energy Efficiency Standards.

Read the full story

Woodbridge High School: Protecting energy budgets in the London Borough of Redbridge.

School Business Professionals are increasingly challenged to balance shrinking budgets and escalating operating costs. However, energy is an area that offers opportunities to protect school budgets through a competitive tender process that proactively secures prices that take advantage of low wholesale market positions where possible.

Read the full story

Windmill Care: Applying consultancy expertise overturned debt of £40,000.

We started working with Windmill Care when we successfully negotiated good tariffs for gas and electricity contracts for the group’s three care homes. But, before they went live, Windmill Care’s incumbent supplier identified a billing issue.

Read the full story