AUTHOR
Renewable Energy Content Consultant
Creating practical, expert content that makes renewable energy technologies clear, credible, and easy to understand.
David Lewis is a renewable energy and electric vehicle (EV) specialist and cleantech writer covering solar panels (solar PV), home battery storage, EV charging, heat pumps, and home electrification.
He has held leadership roles in renewable energy companies and founded Cleantech Content and Electric Car Home, focused on helping homeowners and businesses understand the clean energy transition.
David holds a Postgraduate Diploma in Renewable Energy from Heriot-Watt University and has worked as Head of Narrative & Content at Infinity Energy Services, translating complex technical topics into clear, practical guidance.
He is an Oxford graduate with executive training from IMD.
Practical guides and local insights.
A practical guide for trading estate units and other small commercial premises, including suitability, grant support, running costs, and installation.
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A practical guide to protecting your household from rising energy prices with solar, batteries, heat pumps, EV charging, and smart planning.
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A practical guide to solar in Devon, including typical costs, savings, and what to expect.
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Local guidance for Bournemouth homeowners, including costs, system sizing, and payback expectations.
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A straightforward overview of Powerwall, what it does well, and what to consider before you buy.
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What to expect from a heat pump in Devon, including suitability, running costs, and common questions.
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Local guidance for Barnstaple homeowners, including solar costs, savings, installation steps, batteries, and payback expectations.
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A local Plymouth guide covering heat pump costs, BUS grants, suitability, installation process, and running costs.
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A local guide for Saltash homeowners covering costs, system sizes, savings, batteries and realistic payback expectations.
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A practical guide for Newton Abbot homeowners including installation costs, generation estimates, batteries and long-term savings.
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A practical guide to combining solar panels with an air source heat pump, including costs, grants, batteries, savings, suitability and year-round performance.
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A practical guide for off-grid homes replacing oil or LPG, including who qualifies, how the £9,000 grant works, and what a heat pump could cost after support.
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A local guide for Tavistock homeowners covering solar panel costs, savings, planning permission, batteries and realistic payback expectations.
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A local guide for Ivybridge homeowners covering heat pump costs, Boiler Upgrade Scheme grants, suitability, installation process, and running costs.
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A detailed comparison of the Aiko Neostar and SunPower M Class, covering efficiency, size, warranties, degradation, coastal homes, shading and which panel comes out ahead.
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What the UK's new plug-in solar rules mean for homeowners, how 800W plug-in systems compare with rooftop solar, and which option makes sense for different homes.
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Why UK solar installations have reached their strongest six-month level since 2011, what is driving the growth, and what homeowners should consider before installing.
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The Ofgem energy price cap rises from 1 October 2026. See the new gas and electricity rates, why prices are increasing and how heat pumps, solar panels, battery storage and smart energy use could reduce your exposure.
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Nearly 172,000 UK solar installations have been completed in 2026, with the South West among the busiest regions. See the latest figures, what is driving rooftop solar growth and what it means for homes across Devon and the wider South West.
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