Zion Energy
Planning guides
Make sense of your home energy options.
Start with your home's needs, then explore the equipment and tariffs that could suit it.
Solar panel, battery and inverter sizing
Learn how to size solar panels, a home battery and an inverter for a UK home, with worked examples, tariff considerations and a checklist for installer quotes.
Read the guide →Compare time-of-use electricity tariffs
Understand UK time-of-use electricity tariffs, with worked bill comparisons, off-peak break-even examples and practical advice for EVs, heat pumps, solar and batteries.
Read the guide →Plan a boiler-to-heat-pump upgrade
Plan a UK boiler-to-heat-pump upgrade with practical guidance on heat-loss sizing, radiators, hot water, COP, running-cost examples, installation quotes and grants.
Read the guide →Explore a plan for your home
Start with annual electricity use or half-hourly meter data. You can also try the fictional example first.
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