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25 Years
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Your Trusted Partner for Industrial Energy Solutions
Established in 2001, PowerstarTX has emerged as a global leader in advanced energy technology solutions, delivering thousands of installations worldwide. Our mission focuses on enabling the energy transition for clients through resilient power systems, combining cutting-edge voltage optimisation, low-loss transformers, and battery energy storage systems (BESS). As a strategic partner, we leverage in-house engineering expertise, advanced simulations, and feasibility studies to tailor solutions that balance affordability with exceptional value. Our British manufacturing heritage ensures rigorous quality control, while our technical team guarantees products exceeding performance expectations. Part of the D2Zero group, we collaborate with 4,000 professionals across 25+ countries to accelerate decarbonisation and support net-zero objectives.

With a 24-year track record in voltage optimisation, we offer real-time monitoring, bypass protection, and compliance with international standards like ISO 9001 and ISO 14001. Our client-centric approach has delivered measurable savings for organisations ranging from the NHS to global food manufacturers, with case studies demonstrating energy cost reductions of 5-9.2% and carbon savings exceeding 100 tonnes annually. We maintain global operations while prioritising local manufacturing and component traceability, ensuring solutions adapt to evolving energy challenges.
Services
Voltage Optimisation Low-Loss Transformers Battery Energy Storage Feasibility Studies Technical Consultancy
Details
  • Year established: 2001
Highlights and features
  • 20+ years of expertise in voltage optimisation and energy storage systems
  • Patented dynamic voltage reduction technology for real-time efficiency
  • ISO 9001 and ISO 14001 certified manufacturing processes
  • Global support with installations in 25+ countries
  • Guaranteed energy savings with case studies demonstrating 5-9.2% reductions
Associations and certifications
  • ISO 9001
  • ISO 14001
  • UL Quality Assurance (E472553)
What people say
Energy savings of 71,800 annually Carbon reductions of 58.7 tonnes 99.85% transformer efficiency Rapid ROI within 3 years Uninterrupted power supply
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Services
Voltage Optimisation
Voltage Optimisation systems reduce energy consumption by 5-8%, lowering operational costs and carbon emissions. Our dynamic technology stabilises voltage supply to protect electrical infrastructure while ensuring compatibility with renewable energy sources. Businesses benefit from rapid ROI (12-30 months) and compliance with sustainability initiatives like the Climate Change Agreement.
Low-Loss Transformers
Low-Loss Transformers deliver up to 70% lower core losses than standard models, achieving 99.85% efficiency. Custom-built for industrial applications, they extend equipment lifespan (20-30 years) and reduce energy waste. Certified to ISO 9001 and IEC 60076 standards, these transformers support decarbonisation with efficiencies exceeding 99%.
Battery Energy Storage
Battery Energy Storage Systems (BESS) provide grid resilience and renewable integration with 9.2% average annual cost savings. Our systems enable peak shaving, solar energy storage, and uninterruptible power supply (UPS) with
People
Dr Alex Mardapittas
Founder
Dr Alex Mardapittas founded PowerstarTX in 2001 as a sustainability consultancy. Under his leadership, the company developed patented voltage optimisation technology in 2007 and expanded into BESS solutions. He drives innovation in energy efficiency and decarbonisation strategies.
Questions
What energy savings can I expect from Powerstar's solutions?
Voltage optimisation typically saves 5-8% annually, while BESS delivers 9.2% average savings with ROI within 12-30 months.
How do your systems integrate with renewable energy?
Our BESS and voltage optimisation technologies seamlessly integrate with solar and wind power, enabling storage and grid balancing.
Are your products ISO certified?
Yes, we hold ISO 9001 (quality) and ISO 14001 (environmental) certifications for manufacturing and operations.
Do you offer global installation support?
We operate in 25+ countries with local partners and have installed systems for clients in healthcare, manufacturing, and utilities sectors.
How do you ensure system reliability?
All units undergo Factory Acceptance Tests (FAT) and include bypass protection to maintain power during maintenance or failures.
Can your systems help achieve net-zero targets?
Yes, our solutions have helped clients reduce carbon emissions by up to 107,659 kWh annually through energy efficiency and storage.