About Us Zelestra (formerly Solarpack) is a multinational platform fully focused on multi-technology renewables with a vertically integrated business model focused large-scale renewable projects in rapidly growing markets across Europe, North America, Latin America, Asia, and Africa. Headquartered in Spain, Zelestra has more than 1.000 employees worldwide and is backed by EQT, one of three largest funds in the world with $200 B in assets. At Zelestra we aim to be a solid and solvent company, capable of executing quality and valuable projects for the society and the environment. Therefore, we maintain a firm commitment to contribute directly to the social development of the communities and markets in which we operate, not only through the creation of economic value, but also through the generation of quality employment and through the social projects we promote. Our purpose is to change the world by making decarbonization a reality for our partners.

Mission As

Head of BESS for Spain , you will be responsible for defining and executing the energy storage strategy, ensuring that battery storage becomes a key enabler for the company's renewable energy growth. This role requires a

strategic and transversal business vision , integrating technical, regulatory, commercial, and financial perspectives to accelerate the adoption of BESS solutions. You will act as a key driver in positioning BESS as a competitive advantage within the organization, enhancing portfolio value and market differentiation.

Job Requirements Strategic Leadership : Define and implement the energy storage strategy for Spain, ensuring full alignment with the company’s global vision and leveraging BESS as a growth accelerator.

Business Model Development : Structure the business model for battery storage, identifying commercial opportunities, financial risks, and innovative revenue streams.

Regulatory & Market Engagement : Support the

Country Manager

in advocating for a favorable BESS regulatory framework in Spain, engaging with industry bodies and policymakers.

Portfolio Transformation & Hybridization : Integrate BESS into existing and new solar projects to enhance flexibility, profitability, and market competitiveness. Secure new interconnection capacity (both injection and load) for

stand-alone BESS projects. Identify and execute M&A opportunities for both stand-alone and co-located storage projects. Project Execution & Lifecycle Ownership : Lead projects from feasibility through COD and into the operations phase, ensuring technical robustness, commercial viability, and regulatory compliance.

Multifunctional Leadership : Build and lead a high-performing

cross-functional team , integrating technical, development, commercial, and financial expertise to accelerate storage deployment. Grid & Technical Integration : Work closely with engineering teams to define technical specifications, optimize grid integration, and establish partnerships with battery manufacturers. Financial Structuring & Risk Management : Oversee financial modeling of storage projects, including IRR analysis, cash flow forecasting, and investment planning.

Public Tenders & Incentives : Lead efforts to participate in upcoming

capacity payments tenders. Secure subsidies from local and EU authorities to support the financial viability of storage projects. Commercial Innovation : Support the

Commercial Team

in developing high-value-added storage solutions for customers, enhancing the company’s competitive positioning. Experience : Over 10 years of experience in renewable energy, energy storage, or power markets, with a strong track record in

developing, structuring, and delivering large-scale energy storage projects.

Profile Required Experience : Over 10 years of experience in renewable energy, energy storage, or power markets, with a strong track record in

developing, structuring, and delivering large-scale energy storage projects. Education & Certifications : Bachelor’s or Master’s degree in

Engineering (Electrical, Industrial, Energy, or similar), Business Administration, Economics, or a related field. Additional specialization (MBA, Master in Renewable Energy, Energy Storage, or Grid Management) is highly valued.

Hard Skills Energy Storage Technologies : In-depth knowledge of

BESS architectures, hybridization strategies, battery chemistry (Li-ion, LFP, flow batteries, etc.), and degradation modeling. Grid Integration & Regulatory Framework : Understanding of

grid connection procedures , capacity auctions, and interconnection regulations in Spain. Knowledge of

capacity payments, ancillary services, and energy arbitrage

in energy markets. Project Finance & Business Modeling : Proficiency in

IRR analysis, cash flow forecasting, and financial structuring

of storage projects. Ability to assess

LCOE, LCOS, and revenue stacking models

for BESS assets. Technical & Commercial Negotiations : Experience in negotiating contracts with

battery manufacturers, EPCs, utilities, and grid operators. Public Incentives & Subsidies : Expertise in securing

EU and local subsidies

for energy storage projects. Advanced Tools & Software : Proficiency in

Excel (financial modeling), Power BI, and simulation tools for energy storage (PVsyst, Homer, Dig Silent, or similar).

Soft Skills Strategic Vision & Business Acumen : Ability to position BESS as a

business enabler , integrating technical, regulatory, and financial aspects to drive portfolio growth. Market & Regulatory Expertise : Deep understanding of the

energy storage market, regulatory landscape, and grid dynamics

in Spain and the EU. Leadership & Stakeholder Management : Strong leadership skills to

navigate cross-functional teams , engage with policymakers, and negotiate with partners. Financial & Commercial Insight : Expertise in

project structuring, financial modeling, and revenue optimization , ensuring long-term viability of storage projects. Agility & Execution Focus : Ability to operate in a

fast-paced and evolving environment , translating strategy into tangible results.

Zelestra celebrates the diversity of thought and experience that comes from a variety of backgrounds including, but not limited to, gender, age, ethnicity, …Our mission is to contribute to a more just and equitable society.

Let's co-build a carbon-free tomorrow!Visit us at zelestra.energy