myenergi Eddi Review

Is the myenergi Eddi worth it?

myenergi Eddi review: WHAT IT DOES: diverts surplus solar electricity to your immersion heater (or any resistive load up to 3.68kW). Result: free hot water instead of exporting at 4.5p/kWh. HOW IT WORKS: CT clamp monitors grid export. When surplus solar is detected, Eddi proportionally powers the immersion — matching the available surplus exactly. PRICE: £400-£600 installed. SAVINGS: £100-£200/yr on gas/oil heating (replaces boiler hot water with solar-heated water). PAYBACK: 2-4 years. REQUIREMENTS: hot water cylinder with immersion element. Homes with combi boilers (no cylinder) need a cylinder installed (£300-£500 extra). MODES: (1) Normal — diverts any surplus. (2) Boost — forces heating regardless of solar (manual). (3) Timer — scheduled operation windows. VERDICT: simple, effective, fast payback. One of the best solar accessories available.