Lidl launches 2.24 kWh home battery for €299
Lidl sells a 2.24 kWh solar battery for €299. We analyze its profitability for self-consumption, savings potential, and drawbacks.
English · Original discussion in Spanish · Published
Lidl launches a 2.24 kWh solar battery for €299: solution or hype?
Lidl has entered the domestic solar market with the Tronic Solarstromspeicher, a 2.24 kWh battery priced at €299 – although it appears at €399 in Germany. At €133/kWh, it is one of the cheapest on the market, but its real capacity limits it to low loads: 93.3W for 24 hours or 280W for 8 hours. Enough for a router, LED lights, and charging phones, but not for a fridge or air conditioning.
Price breaks barriers, but capacity falls short
2.24 kWh is not enough to disconnect from the grid. During a blackout, the battery maintains critical consumption for hours, but for an average home with appliances, it remains mere backup. Internal analyses calculate that real savings, leveraging the difference between valley and peak prices of the PVPC (Spanish electricity tariff) (approx. €0.25/kWh), are about €0.50 per day. Thus, amortization extends to 600 days, assuming the battery does not fail. With three units (€900), savings triple, but so does the initial outlay.
Who is it useful for?
The battery is designed for balcony solar installations, very popular in Germany. In Spain, municipal ordinances often prohibit them, but where allowed, they enable storing surplus energy from panels and using it during sunless hours. It can also serve second homes or caravans, provided consumption is modest. A user with a contracted power of 2.2 kW considers disconnecting from the grid, though the capacity cannot cover demand peaks.
Legalization and insurance: the Achilles' heel
Although installation is simple (plug-in), any storage system must be legalized in Spain, even if it does not feed into the grid. In case of fire, insurance may refuse to cover damages if the installation is not certified. Furthermore, in Germany, VAT for these systems has been zero since 2023, but Spain offers no such benefit, increasing the real price.
Lidl's battery is a symptom of the rapid drop in prices for domestic storage. It is not a panacea for self-sufficiency, but it brings technology closer to more households. The lingering question: how long will these prices last before demand drives them up?
Related forum discussions
Lidl has entered the domestic solar market with the Tronic Solarstromspeicher, a 2.24 kWh battery priced at €299 – although it appears at €399 in Germany. At €133/kWh, it is one of the cheapest on the market, but its real capacity limits it to low loads: 93.3W for 24 hours or 280W for 8 hours. Enough for a router, LED lights, and charging phones, but not for a fridge or air conditioning.
Price breaks barriers, but capacity falls short
2.24 kWh is not enough to disconnect from the grid. During a blackout, the battery maintains critical consumption for hours, but for an average home with appliances, it remains mere backup. Internal analyses calculate that real savings, leveraging the difference between valley and peak prices of the PVPC (Spanish electricity tariff) (approx. €0.25/kWh), are about €0.50 per day. Thus, amortization extends to 600 days, assuming the battery does not fail. With three units (€900), savings triple, but so does the initial outlay.
Who is it useful for?
The battery is designed for balcony solar installations, very popular in Germany. In Spain, municipal ordinances often prohibit them, but where allowed, they enable storing surplus energy from panels and using it during sunless hours. It can also serve second homes or caravans, provided consumption is modest. A user with a contracted power of 2.2 kW considers disconnecting from the grid, though the capacity cannot cover demand peaks.
Legalization and insurance: the Achilles' heel
Although installation is simple (plug-in), any storage system must be legalized in Spain, even if it does not feed into the grid. In case of fire, insurance may refuse to cover damages if the installation is not certified. Furthermore, in Germany, VAT for these systems has been zero since 2023, but Spain offers no such benefit, increasing the real price.
Lidl's battery is a symptom of the rapid drop in prices for domestic storage. It is not a panacea for self-sufficiency, but it brings technology closer to more households. The lingering question: how long will these prices last before demand drives them up?
Related forum discussions
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Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (50 replies).
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