Energy Stack knowledge base
Plain-English reference for solar, batteries, EV charging and heat pumps. Hardware, design, standards, grants and the bits installers assume you already understand.
Start here
- String, hybrid and microinverters — how to decide
- Single vs three-phase supply — what it changes
- Heat loss surveys — how to read one
- Octopus Intelligent eligibility — and how to pass
S · Solar
Solar PV reference
B · Battery storage
Battery reference
EV · EV charging
EV charging reference
H · Heat pumps
Heat pump reference
R · Reference
Cross-cutting reference
Concepts that span multiple topics. Linked from inside each topic where relevant.
Recently updated
- S-05Inverters Reviewed 22 May 2026
- R-01Single vs three-phase supply Reviewed 18 May 2026