Author

David Lewis

Renewable Energy Content Consultant

David Lewis

Creating practical, expert content that makes solar, batteries and heat pumps 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.

Written by David

Practical guides and local insights.

Featured GuideEnergy CostsHome Electrification

How To Survive Energy Shocks

A practical guide to protecting your household from rising energy prices with solar, batteries, heat pumps, EV charging, and smart planning.

Battery StorageResidentialCommercial

Tesla Powerwall 3

A straightforward overview of Powerwall, what it does well, and what to consider before you buy.

Featured GuideHeat PumpsSolar Panels

Heat Pump and Solar Panels

A practical guide to combining solar panels with an air source heat pump, including costs, grants, batteries, savings, suitability and year-round performance.

Solar PanelsResidentialTavistock

Solar Panels in Tavistock

A local guide for Tavistock homeowners covering solar panel costs, savings, planning permission, batteries and realistic payback expectations.

Featured GuideSolar PanelsPanel Comparison

Aiko Neostar vs SunPower M Class

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.

Featured GuideSolar PanelsUK Solar Rules

Plug-In Solar vs Rooftop Solar

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.