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Microgrids

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Our company Abengoa (MCE: ABG.B/P SM /NASDAQ: ABGB) applies innovative technology-based solutions for sustainable development in the energy and environment sectors, generating electricity from renewable resources, transforming biomass into biofuels and producing drinking water from seawater. Abengoa Abeinsa, the Abengoa business group dedicated to engineering and construction, provides integrated solutions for the energy, water, environment, infrastructure and service sectors.

Infrastructures for a sustainable world

Business areas Abengoa Abeinsa, a global benchmark among engineering and construction companies with more than 70 years of market experience and expertise, structures its activities around four verticals: Energy & Environment: solar plants (tower,

CCP, hybrid solar-gas and PV), other renewable plants (wind power, biomass, WtE), conventional generation, biofuels, desalination plants, water treatment, reuse, transportation and distribution.

Transmission & Infrastructure: major power transmission systems (both AC and DC), singular building construction, rail transportation and industrial plants.

Services: engineering, manufacturing, logistics and sourcing, operation and maintenance.

Asset Management: managing assets under concession (transmission lines, power and water treatment plants, singular buildings, etc.).

PT: Parabolic Trough; PV: Photovoltaic; AC: Alternating Current; DC: Direct Current; WtE: Waste to Energy

Activities and recognition

Activities Abengoa Abeinsa structures its operations into three distinct segments: Engineering and construction: engineering,

construction and maintenance for power generating plants, hydraulic and environmental infrastructures, as well as electrical, mechanical and instrumentation infrastructure for the energy, environment, equipment, transportation and service sectors.

Concessions: including both electrical power transmission and generation infrastructure in the energy sector, and infrastructures under concession in the water sector, singular buildings, railway and others.

New technologies: energy storage, ocean power, energy efficiency, electromobility and CO2 capture and valorization.

Promotion Financing Engineering Manufacturing

and Procurement

Construction O&M

Integration

Risk management

Value chain Abengoa Abeinsa has an integrated business model spanning the entire project value chain (EPC+O&M).

International presence

Abengoa Abeinsa has an employee headcount of over 20,000 people*. The company conducts its activities in over 40 countries and enjoys a presence on every continent around the globe, operating in highly diverse social, cultural and economic environments. Abengoa Abeinsa accordingly applies global standards, policies and practices, while at the same time exercising local sensitivity and awareness, which enables the company to understand and respond to the specific needs of the different communities with which it interacts throughout the different phases of company business. Abengoa Abeinsa has an extensive network of permanent branches and subsidiaries.

Countries where Abengoa Abeinsa has an ongoing presence.

4 ABENGOA

* Workforce as of June 2015.

What is a microgrid? A microgrid is an independently managed local energy system that is built upon three pillars: electricity generation, storage and demand control. • Power generation in microgrids usually comes

from different distributed generating systems, including renewable and non-renewable sources, with power outputs that range from hundreds of kW to tens of MW.

• Energy storage includes lithium batteries, hydrogen, etc., and it contributes to leveling peaks in production and demand.

• Demand is adjusted by means of control systems, to achieve a more secure and efficient quality supply of energy.

Microgrids can operate in island mode, completely separate from the grid, or in grid-connected mode via a common point (CCP, Common Coupling Point), enabling electricity import or export as required.

Microgrids

Advantages

Reduction in transmission losses

Efficiency

Greater integration of renewable energy sources

Sustainability

No grid interruptions in unfavorable conditions

Resilience

Increased control of quality and stability

Quality

Supply security: option to function independently from the general grid

Independence

More control and less risk, including storage and generation and

consumption forecasting

Manageability

Provision of auxiliary grid services in new deregulated market scenarios

Business

Microgrids

ABENGOA

CCP

Microgrid at the substation level

Industrial microgrid Community microgrid

CCP CCP

Conventional electric power grid

Applications Microgrids can provide specific solutions according to customer needs: • Communities: optimizing the use of

conventional generators and integrating renewable resources in both residential areas and in remote cities with a high number of losses occurring in transmission.

• Critical zones: secure energy supply in the event of undesired interruptions in places that include hospitals, prisons, military bases, etc.

• Microgrids on campus: an island that is wholly independent from the grid can be set up for college and university campuses, etc, improving the efficiency and sustainability of the energy used.

• Industrial or commercial hubs: helping to lower fuel costs, in addition to ensuring secure and stable energy supply to mines, commercial centers and the manufacturing industry.

Microgrids

Engineering News Record (ENR) 2014 Ranking

Proven expertise in electrical infrastructure construction, operation and maintenance recognized by the ENR ranking of major international contractors as:

#1 in power infrastructure

#1 in power transmission and distribution

#5 in operation and maintenance More than 9 GW installed in conventional power generation projects

Leader in renewable power generation:

#1 in solar energy

#2 in cogeneration

#8 in wind power

Proprietary technology in:

STE (Solar Thermal Energy)

Hydrogen

An engineering team with a capacity of 625,000 man hours per year.

Proprietary technology in energy storage systems:

Battery-based electricity storage

Molten salt-based storage

Hydrogen-based storage

The world’s first and only solar plant-applied battery storage project

Abengoa solutions We provide turnkey microgrid construction, including (conventional or renewable) generating systems, distribution networks, storage and control systems, and operation and maintenance.

Energía Solar, 1 Palmas Altas 41014, Seville, Spain Tel. +34 954 937 000 www.abeinsa.com www.abengoa.com

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