Hybrid Solar Power Systems 11th German-African Energy Forum Hamburg, April 25th & 26th, 2017

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AGENDA

• Company Introduction

• Hybrid System Solution

• Some Reference Cases

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RWE / Innogy

RWE New Structure since June 2016

RWE AG

Conventional

Generation

Global Engineering

Consulting

Trading

77%

23%

100%

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BELECTRIC: Company profile

One of the world’s largest PV system integrator

In-house R&D and manufacturing

Over 1.5 GWp total installed capacity

Experience in all continents and climates

Germany

USA

Israel Tanzania

Australia

Israel

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AGENDA

• Company Introduction

• Hybrid System Solution

• Some Reference Cases

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Hybrid: System overview

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Hybrid system

1

2

3

4

fuel

investment

energy share energy share required quantitatively

System Design: Different Hybrid Options

N/A

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System Design: Economic Feasibility

• Financial objectives • Load data • System costs • …

Input Data: • System Cost • Energy resources • Load requirements • System lifetime • Current future energy

costs •O&M costs • Finance terms • Inflation

Economic Model: The most cost-effective solution: PV size, storage?

Financial model analysis

Hybrid system configuration

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Hybrid 1 Hybrid 2

Hybrid 3 Hybrid 4

System Design: Load vs Production

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Hybrid: The Hybrid Controller

The Hybrid Controller manages the different energy sources based

on the load demands and grid requirements, and guarantee high

quality energy generation

Genset

Power Unit Existing

energy

sources

Solar Power

Unit

Energy

Buffer Unit

Managing all power plant units to ensure grid stability

Optimizing operation cost in real time

Voltage

Control Frequency

Control

Ensure max.

power output

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AGENDA

• Company Introduction

• Hybrid System Solution

• Some Reference Cases

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References: Hybrid Systems

54 Feasibility Studies carried out in all continents

7 Projects implemented

PV-Battery Hybrid, Kenitra, Morocco: 25.4kWp PV, 38 kWh battery & 2kW wind, 2014

Marawah Island, United Arab Emirates: 492kWp PV and Diesel, 2011

PV Hybrid system, Maldives Islands: 70kWp PV, 2009

PV-Battery Hybrid, Salinas, Puerto Rico: 15.5MWp PV & 5.4 MW battery, 2015

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References: Hybrid System in Tanzania Hybrid system in remote location in south Tanzania

40% diesel fuel saving

System controller guarantees quality of energy supply

Full EPC done by Belectric, completed in Feb 2014

108kWp PV 542kVA Hydro power plant

1,730kVA Diesel

Belectric‘s Hybrid

Controller

Mini-grid

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References: Hybrid System in Somaliland 41% diesel fuel saving

Energy storage & system controller guarantee energy supply quality

Grid forming battery inverters: Diesel offline during the day

Currently under commissioning (March 2017)

492kWp PV 1.05MWh / 560 kVA storage system

300kVA Diesel power

Belectric system control

Customer

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References: Hybrid Systems in Eritrea

3 different Sites

Tekera: 2 MWp PV

Gergera: 2 MWp PV

Kerkebet: 4 MWp PV

PV & Diesel powered minigrids

First site (Tekera) under preparation

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Mining Feasibility Study: Gold Mine, Tanzania

Solution: PV for cost reduction, inverters for voltage stabilization

Nominal Power: 34.8 MWp + Grid + Diesel

Contract: PPA through partnering IPP

Status: Tender won, project on hold mainly due to diesel supply

price reduction, now possibly first stage smaller

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Thank you! ebu@belectric.com | +49 9385 9804 5117