“We’re targeting 7x growth”: Hoymiles’ Sebastián González on the roadmap to 700 MWh of battery storage in Iberia by 2026

Controlling prices, securing supply, and scaling fast. On these three pillars, Hoymiles is backing a mature and stable supply chain, with the goal of increasing its capacity sevenfold by 2026. This was confirmed by Sebastián González, the company’s Country Manager for Iberia, in a conversation with Energía Estratégica.

Throughout the conversation, the executive analysed the factors behind Hoymiles’ growth, from closing the year with 100 MWh of installed storage capacity to the role of government subsidies, technological innovation and the incorporation of artificial intelligence to optimise energy storage systems.

• Sebastián, in an increasingly competitive energy storage market, where technical knowledge is still uneven, how do you manage to stand out and explain your differentiation among so many alternatives?

We differentiate ourselves in several ways. First of all, we have been ranked Tier 1 by BloombergNEF for the third consecutive year. We have been working with energy storage since 2017, both in utility-scale and commercial and industrial segments.

• Beyond the product itself, how do you engage with customers from the very beginning?

We do not want to simply sell and disappear. We support customers from day one with engineering assistance throughout the entire pre-sales phase. And an important point: the first commissioning is always included in our pricing. That is also a clear added value.

• Looking at the year-end balance, how do you close 2025 in Iberia in terms of energy storage?

The truth is that, following the blackout Spain experienced in mid-2025, the market moved very quickly. That situation benefited us, as it helped us close the year with 100 MWh installed exclusively in energy storage. It may sound modest, but it is a solid step forward.

• Which specific segment does that 100 MWh correspond to?

That figure refers exclusively to energy storage. It does not include residential inverters, which have also grown. We are talking about utility-scale, commercial, and industrial projects. Even so, it represents less than 5% of Hoymiles’ European portfolio, but in Iberia, it is a major achievement.

• And looking ahead to next year, what is the projection?

If I have to answer my boss, I would say we are targeting a 7x increase. We are talking about 700 MWh in 2026 in Iberia alone, which represents an ambitious leap. However, demand is growing rapidly, not only due to energy needs, but also because of the search for grid independence and the government’s support schemes.

• Thinking about that relationship with the public sector, if you were to meet with the Spanish government today, what measures would you suggest to incentivise energy storage?

More subsidies and better accessibility. It is right to support large-scale projects, but we must not forget 10, 20 or 30 MW projects, which are the ones that build volume in a market like Spain, where there are still many renewable plants that have not yet been hybridised with storage.

• Does Hoymiles carry out its own market intelligence studies to estimate how much additional capacity storage could add, beyond new projects?

In reality, we do not have the total market figure. But what I can say is that, of what has been installed this year in utility-scale projects in Iberia, we estimate that Hoymiles has represented around 4.5%.

• The market is growing, but it is also challenging: how do you manage the balance between profitability, competitive pricing and expansion?

Spain is a market that wants to see completed and operational projects in the country. That is why most manufacturers prioritise positioning, even if that means setting profitability aside in the short term. We see this as a medium-distance race. Next year, prices will remain broadly similar, and margins will improve thanks to the decline in lithium iron phosphate battery prices.

• Are there any new developments or technological innovations you are currently working on?

Yes, we are developing the HoyUltra 2, which is an all-in-one solution. It is a cabinet with everything included, manufactured 100% in-house, including the local energy management system and liquid cooling. It has a capacity of 261 kW and is our newest product.

• Another topic that has gained traction recently is artificial intelligence. What role does AI play in your operations, products or customer solutions?

Our products use 100% open protocols, which makes them compatible with a wide range of software platforms. In projects such as one we have in the Pyrenees, AI manages the battery based on wholesale electricity prices from OMIE, the Iberian power market operator. This allows the system to decide the best moment to charge or discharge. As a result, the client achieved 15% savings thanks to that strategy.

• To close, on a more personal note: if we were speaking in November 2026, what would you like to have achieved to feel it had also been a good year for you?

I would like to have consolidated Hoymiles in Iberia as a solution that truly represents our vision: “Solar Storage Beyond Limits”. Today, we are the world’s second-largest manufacturer of microinverters, but we also want to be recognised as a reference in energy storage.

With its commitment to a mature and stable supply chain, and a strong technical support strategy, Hoymiles aims to position itself as one of the leading players in the Iberian storage market. In González’s words, it is about running a smart race: building presence, adapting to the context, and capitalising on growing demand.