Upgrade to a High‑Efficiency Home with Air Source Heat Pumps, Solar Panels & EV Charging
Integrated renewable energy packages designed for UK homes — combining heat pumps, solar PV, battery storage and smart EV charging to deliver maximum savings, lower carbon emissions, and long‑term energy independence.
- Designed and planned for maximum benefits — every system is engineered as part of a single, optimised home‑energy roadmap.
- Implemented in phases to match your timeline, budget, and lifestyle, ensuring minimal disruption at every stage.
- Enjoy a smooth energy‑transition journey with EV charging, solar, battery storage, and heat pump upgrades that work together — not in isolation.
We take care of survey, system design, installation, commissioning, after‑care, certifications, notifications, warranty registrations, and full compliance —all managed in one place for total peace of mind.
Choose a single upgrade — or combine them to create a cleaner, smarter, more efficient building.
Case Study: The Harrisons, Kent
From EV Charger to a Fully Integrated Energy System
An example journey, guided by Pretium Synergy
The Harrisons never set out to redesign their home’s energy system—initially, they just wanted a reliable EV chargepoint. That simple search brought them to Pretium Synergy. In the first consultation, instead of presenting a single product, we explored everything that shapes a home’s energy performance: roof orientation and shading, insulation levels, day–night usage, tariff options, supply constraints, and long-term ambitions such as electrified heating.
Together, the Harrisons planned a staged pathway to net zero, completed over less than three years—each step chosen to build on the last.
These upgrades can be completed in any order. The following is one optimised sequence; we tailor every plan to your home, budget and priorities.
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.