Designing for Today. Ready for Tomorrow.
EV charging planned for today and integrated for tomorrow
When the Harrisons first began exploring an EV chargepoint, they were already thinking ahead. They understood that an electric vehicle was only one step in a broader energy journey—but they weren’t sure how best to plan for what might come next. The companies they spoke to focused on what they knew best: recommending a specific charger and providing a quote. What was missing was wider context and long‑term thinking.
That changed when they contacted Pretium Synergy. From the outset, the conversation went beyond a single product. Rather than pushing a one‑size‑fits‑all solution, we took the time to understand how their home actually worked—exploring factors such as roof orientation and shading, insulation levels, day‑ and night‑time energy use, tariff options, supply constraints, and future ambitions like electrified heating.
Together, we shaped a staged, flexible pathway toward net zero, delivered over less than three years. While upgrades can be completed in any order, this represents one optimised sequence—tailored entirely around the Harrisons’ home, priorities, and pace.
Baseline — The Harrisons’ Starting Point
A petrol car, a gas boiler, and standard grid electricity. Costs are predictable—but higher than they’d like.
Pretium’s early advice: Let’s map your journey so every decision sets up bigger savings tomorrow.
Stage 2 — EV + Time-of-Use Tariff
Budget-friendly charger + lower-cost off-peak electricity
Pretium’s touch: curated hardware, tidy install, tariff optimisation, and smart-charge scheduling.
Stage 3 — Battery Storage + Hybrid Inverter (~£5,600)
Cheap electricity stored, expensive electricity avoided
Pretium’s touch: correct sizing, safe placement, clean commissioning, and guided use during price peaks.
Stage 4 — Solar PV (~£5,000)
From consumers to producers — bills drop to £0
Pretium’s touch: roof & shading analysis, string design, DNO approval, and enriched app visibility.
Stage 5 — Heat Pump + Additional Battery (~£7,500 + ~£5,500)
Goodbye gas — the home becomes fully electric
Pretium’s touch: heat-loss survey, radiator adjustments, system design, precise commissioning, and a first-cold-snap followup.
The Result — Integrated, Comfortable, FutureReady
Across the journey, the Harrisons invest £24,800 (EV charger, battery + hybrid inverter, solar PV, heat pump, second battery). Savings start early and compound with each upgrade.
In simple terms, the transformation behaves like a high-yield green asset, delivering financial resilience, comfort, and a deeply sustainable footprint.
Ready to design your wholehome plan?Create a personalised, phased roadmap—matched to your property, budget and goals, ensuring each step strengthens the next.
The information contained in this document is provided for general guidance and illustrative purposes only. It does not constitute financial, investment, technical, tax, legal, or other professional advice, and must not be relied upon as such. The indicative cost savings, financial returns, payback periods, and performance outcomes referenced herein are based on a simplified model and a number of specific assumptions that may not apply to individual households.
Actual results will vary and are dependent upon a wide range of factors, including but not limited to: household energy consumption patterns; occupancy levels; property characteristics and insulation quality; system design and installation quality; behaviour of occupants; tariff availability; energy supplier terms; government policy; local regulations; weather and climatic conditions; and the performance, degradation, and configuration of equipment over time.
This model does not account for future variations in energy prices or tariff structures, changes to government incentives or export rates, equipment performance losses and degradation over time, breakdowns, repairs, or ongoing maintenance and servicing costs. No warranty or representation is made as to the accuracy, completeness, or reliability of the information, projections, or assumptions provided, whether express or implied.
Pretium Synergy Ltd. and its affiliates accept no liability for any loss, damage, cost, or expense arising directly or indirectly from the use of, or reliance upon, the information contained in this document. Users should obtain independent professional advice and conduct a tailored assessment before making any investment or installation decisions.
