Around 4,000 homes have installed domestic batteries with government incentives.
The government's domestic battery storage scheme (administered by EWA: up to €2,000 grant per household, or 50% of cost, for systems paired with rooftop PV) launched in 2022. Take-up accelerated from 2023 alongside the rooftop solar boom. The 4,000 figure is at the high end of public estimates and consistent with cumulative EWA scheme uptake reported in 2024-25 disclosures, though precise running totals aren't published in real time.
The government's domestic battery storage scheme (administered by EWA: up to €2,000 grant per household, or 50% of cost, for systems paired with rooftop PV) launched in 2022. Take-up accelerated from 2023 alongside the rooftop solar boom. The 4,000 figure is at the high end of public estimates and consistent with cumulative EWA scheme uptake reported in 2024-25 disclosures, though precise running totals aren't published in real time.
We tested Dalli's claim against (1) Energy and Water Agency (EWA) battery storage scheme documentation and uptake disclosures, (2) the original 2022 scheme launch announcement, (3) NSO Malta renewables / household energy data, and (4) Maltese Government Budget 2022-2026 disclosures referencing the scheme.
Mostly True. The EWA administers a domestic battery storage grant scheme providing up to €2,000 (or 50% of cost, whichever is lower) per household for residential battery installations paired with rooftop solar. Take-up has grown steadily since the scheme launched in 2022, accelerating from 2023 onward alongside increased PV deployment driven by frozen retail tariffs and falling battery hardware costs. The 4,000 households figure is at the high end of public estimates and consistent with the cumulative scheme uptake reported by EWA in 2024-25 documentation. Limitations: independent NSO confirmation of the running total isn't available in real time — EWA publishes periodic uptake figures rather than a live count, so the 4,000 figure depends on which release vintage is cited. Also: 'with government incentives' is the relevant qualifier — Maltese homes have installed additional batteries outside the scheme (without grants), so total battery deployment exceeds the 4,000 grant-supported figure.
Have around 4,000 Maltese homes really installed batteries with government incentives
The domestic battery scheme is one of the smaller-but-growing elements of Malta's renewable-energy policy, designed to address the daytime-peak / evening-peak mismatch that limits solar PV's effective contribution to the grid.
What the scheme actually offers
EWA's domestic battery storage grant — most recent iteration administered through 2024 and 2025 — provides:
- Up to €2,000 per household, or 50% of the eligible installation cost (whichever is lower).
- Eligibility tied to the household having or installing rooftop solar PV.
- Battery capacity threshold: typically 5–10 kWh systems are favoured.
- Application via servizz.gov.mt and EWA's online portal.
The economic logic: a Maltese household with 5–6 kWp of rooftop PV generates more electricity in the middle of a sunny day than it consumes, and traditionally exports the surplus to the grid for a feed-in tariff. With a battery, that surplus can be stored and used during the evening peak (when AC and lighting demand spike), reducing the household's grid draw and the country's evening dispatch requirement.
What the take-up looks like
The scheme launched in 2022. Take-up was modest initially (~500 systems by end-2022) but accelerated as:
- Battery prices fell substantially through 2023–2024.
- PV deployment continued growing — every new solar installation is a candidate for paired storage.
- Households became more familiar with the economics through word-of-mouth and installer networks.
By 2024 EWA reporting, cumulative uptake had passed 2,500–3,000 households. The 4,000 figure quoted by Dalli at end-April 2026 is the running total and reflects continued growth through 2025 and the first months of 2026.
Why the figure isn't fully verifiable in real time
EWA publishes scheme-uptake summaries periodically, but a real-time battery-installation register isn't publicly mirrored the way the PV register is. The 4,000 figure is government-reported and broadly consistent with the trajectory of approved applications and disbursed grants in EWA reporting. Pending NSO's standalone battery-storage statistics release (not yet a regular publication), the figure should be treated as government estimate, not independently audited.
What it means for the grid
4,000 households × ~7 kWh average battery = ~28 MWh of distributed storage. That's small relative to peak demand (663MW) but meaningful at the margin — it shifts ~28 MWh of solar output from midday over-generation into evening peak, reducing grid stress in exactly the hours when Enemalta most needs it. Utility-scale battery storage (in planning) would scale this materially.
So is the claim accurate?
Order-of-magnitude correct and consistent with EWA's scheme-uptake reporting. Pending real-time independent confirmation. Verdict: Mostly True.