Watts-ON Consultants is a privately-owned water and energy consultancy company founded in 2017 by Davide Bertelli (CEng) and Giovanni Lupaldi (CEng, CEnv, CEM and ESOS LA). We are now a bigger team with Andras Szollar bringing in sustainability knowledge. We are a group of enthusiastic consultants, chartered engineers and software developers who have combined their global professional knowledge to help high energy and water users to reduce their utility consumption and running costs.
About us
Who we are
How we work
We work side by side with your team guiding your staff to achieve your sustainability targets and reduce your operational cost using our unique team working approach.
Where we have worked

Our offices
Aughton, L39 UK
57 Fitzwilliam Square North, Dublin 2, D02 CP02, Ireland
Via Adige 41, Battipaglia (Salerno) Italy
Csaba utca 10, Budapest, Hungary 1122
How you benefit
Our combined expertise created Watts-ON, our user-friendly, low cost virtual utility manager assistant, which will help you track project implementation, cost savings and efficacy of capital investments. If you have undertaken your voluntary or mandatory utility audits, but you don’t see tangible benefits for your efforts, come and talk to us.
What we do
Energy Legislation compliance
• ESOS• SECR
Metering Monitoring & Targeting
Energy & Water audits
Energy procurement
Sustainability certification
Our team

Andras Szollar, MEng, LEED & BREEAM AP
- Energy efficiency
- EU EPBD Energy auditor
- BREEAM & LEED certification

Eng. Davide Bertelli
- Software design
- Software security
- Telemetry expert

Giovanni Lupaldi, CEnv, CEng IMEchE, CEM
- Smart metering and M&T
- Certified Energy Manager
- Business development

Zoltan Majnovics, Sustainability Consultant
- BREEAM, LEED and WEEL, in new construction, existing building and fit-out projects

Eszter Horvath, MSc, Sustainable Energy
- Renewables
- Energy Efficiency
- Sustainability

Matt Batey, EU New Business Development Associate
- Expert consultant and researcher in Sustainable Real Estate, Building Energy Optimisation & Flexibility.
- Expertise in Microgrids, BIPV, BREEAM In-use and Project Financing.
To manage your utilities is a complex business but for us it is elementary … elementary, Watts-ON!
