How Mixergy Puts Money Back in Tenants’ Pockets
Smarter Hot Water for Long-Term Affordability
In social housing, reducing running costs for tenants is more than a goodwill gesture — it is a strategic goal that supports affordability targets, reduces arrears risk, and builds trust between provider and resident.
Mixergy’s approach to hot water rethinks the traditional cylinder. By combining patented thermal stratification, smart controls, and renewable integration, our systems cut wasted energy, make the most of cheaper or free power, and ensure hot water is always available when it’s needed.
Here’s how our technology works, and how it’s already saving tenants money across the UK.
1. Only Heat What You Need with our Patented Thermal Stratification
Traditional cylinders heat the entire tank in one go. That’s energy-intensive, slow, and wasteful when tenants don’t need a full tank.
Mixergy cylinders heat from the top down, creating a hot layer ready for use while the rest of the tank remains cooler until required. This:
- Reduces energy consumed per heating cycle
- Delivers hot water faster, lowering the need for immersion boosts
- Cuts standing heat losses
Real-World Example: Havebury Housing
A Havebury resident with solar PV saw oil consumption cut by 65% in a year because their cylinder only heated the portion needed and topped up with free solar energy. Their boiler stayed off for 185 days, avoiding summer oil refills entirely and reducing CO₂ emissions by 70%.
2. Maximise Free and Low-Cost Energy through Renewable & Tariff Integration
Our systems are built to work with both solar PV and time-of-use tariffs. When there’s surplus solar generation, the cylinder automatically stores it as hot water. When on smart tariffs, heating is scheduled for the cheapest periods.
This turns the cylinder into a thermal battery, storing energy when it is cheapest (or free) and using it when needed.
Real-World Example: Mid-Wales Solar PV Partnership
In partnership with Barcud Housing, tenants at William Angie Court paired Mixergy with solar PV. Even without solar input, intelligent scheduling saved over 30% on hot water bills. With solar topping, costs dropped to near zero on sunny days, giving residents predictable, low bills year-round.
3. Learn, Adapt, and Save with our Smart Controls and Machine Learning
Every household’s hot water usage is different. Mixergy systems learn daily patterns and adapt heating schedules accordingly, so hot water is ready when expected without wasting energy heating unused volume.
Residents can also adjust settings via the Mixergy app or the built-in gauge. For housing providers, remote monitoring through the welfare dashboard allows performance checks without site visits, helping to resolve issues quickly and minimise downtime.
Real-World Example: Birmingham City Council
Nearly 1,000 Mixergy cylinders installed across the city saved tenants an average of £286 per year, adding up to £286,745 in collective savings in just two years. Smart control reduced unnecessary reheats, and remote monitoring reduced call-outs, cutting operational costs for the council.
Why This Matters for Procurement and Asset Management
For procurement and asset managers, the value of Mixergy technology comes from aligning tenant affordability with long-term asset efficiency:
- Measurable savings that improve residents’ financial resilience
- Lower CO₂ emissions to support environmental targets and compliance
- Operational efficiencies through reduced maintenance visits and fault detection
- Future readiness for decarbonisation pathways and grid flexibility schemes
These aren’t pilot-scale promises, but proven results at both single-property and portfolio levels.
The Bottom Line
Mixergy technology improves the efficiency of hot water and transforms it into a managed, predictable, and cost-effective service. Whether through cutting wasted energy, storing free solar power, or adapting to residents’ patterns, every innovation is designed to put money back into tenants’ pockets while making housing portfolios greener and easier to manage.
Book a Free Consultation
Book a meeting with our Sales Director, Peter McBride, to discuss your project. We’ll look at EPC / SAP compliance, the decarbonisation journey, and determine the right solution for you.
