Eritrea - Solar PV Mini-Grids for two Rural Towns and Surrounding Villages

Eritrea’s energy supply system is characterized by massive dependence on traditional biomass fuels to cover its domestic energy requirements, a lack of easy access by the majority of the country’s population to modern energy; and total reliance on imported oil as a source of modern energy. Less than 10% of Eritreans in rural areas have access to electricity. Therefore, an effort by the Ministry of Energy and Mines and international donor organizations is made to promote rural electrification through sustainable sources.

The present project included the design and tendering of two mini-grid PV systems in Areza and Maidma (total 2.25MWp PV), designed as hybrid plants with storage units (3.4 MWh Li-Ion Battery), and diesel gen-sets (5 gensets; total 1.3 MVA). The renewable energy fraction of the system is higher than 70%. The local distribution grid was designed and tendered by Eritrea Electric Corporation and the generation side was handled by intec.
 

intec's services

• Detailed demand assessment and forecasts
• Design of the two hybrid systems (PV, diesel, battery storage) including their synchronisation with the distribution system and related components (site assessments, PV energy yield assessments, system sizing, design, project budget) as well as optimization for Levelized Electricity Cost
• Preparation of (a) tender dossier(s) for supply and installation, in compliance with EU/EDF procurement regulations, including BoQ and detailed technical specifications
• Support during the tender period
• Assistance in bid evaluation and contract preparation

Client

Financing

Period of implementation

India - Pre-feasibility Study on Land-Neutral Photovoltaic

This pre-feasibility study examined the economic viability of distributed power generation from solar PV. Given the scarcity of land in a densely populated country such as India, it focused on canal-topped or floating solar panel arrays in the states of Kerala and Maharashtra.

intec's services

General overview and evaluation of the concepts of canal-topped and floating solar PV:

• Technical aspects and requirements (modules, framework structures, statics, technical restrictions from canal maintenance, expected output, climatic effects, impact on the water body, grid connection, safety and access),
• Cost-based comparison of system configurations and economic analysis of generation costs,
• Identification and evaluation of social, environmental and climate aspects,
• Lessons learnt from similar projects, inter alia in Gujarat,
• Comparison of concepts and recommendation,
• Establishment of a criteria checklist for selecting future projects.

Development of a project pipeline in Kerala:

• Identification of up to 10 projects with an accumulated capacity of 200 MW or more
• Evaluation and comparison of these sites according to the checklist, possibilities for extension on adjoining land, identification of power off-takers, establishment of rough time frames for implementation, proposal of indicators for measuring the project's success incl. performance data to be achieved
• Brief overview of relevant institutions and expertise in India: policy at national and state level, situation and perspectives of the electricity sector in Kerala, overview of the partner institution KIIDC (Kerala Irrigation In-frastructure Development Corporation) and its capacities for planning, building and operating such projects, identification of other relevant institutions, overview of companies that have installed or are operating canal-topped or floating PV systems.

Additional services in Maharashtra State:

• Evaluation of proposed potential project sites and assessment of their constraints and opportunities
• Comparison of estimated generation costs with the results for Kerala
• Establishment of a shortlist of most promising sites
• Assessment of power off-taker and grid connectivity of the sites
• Summary of results in a pre-feasibility study report.

Client

Financing

Period of implementation

Ghana - 100 MW Solar Project in Nyimbale - Sankana

Home Energy Africa (HEA) has obtained a siting clearance approval from the Energy Commission of Ghana for the installation of a 100 MW solar PV plant at Sankana, Nadowli-Kaleo District, Upper West Region. The site has a size of 200 hectares and shall be connected via a 161 kV power line. The electricity that will be produced by the planned PV plant shall be sold to the Electricity Company of Ghana (ECG) under a long-term Power Purchase Agreement (PPA).

HEA has retained the clean energy financial advisor GreenMax Capital Advisors to manage the solicitation of the different services required for the development of the above plant.

intec's services

• Electrical Interconnection Study

Study of grid capacity limitations and technical requirements of grid connection,

Selection of location of project substation,

Proposals for routing of the potential feeder line,

Identification of equipment and material requirements,

Technical and economic viability of proposed feeder line route.

• Solar Irradiation Study: solar data summaries and analysis (global horizontal irradiance - GHI and direct normal irradiance - DNI), determination of projected energy production.
• Technology Assessment: review of PV technology options (crystalline or thin film) and system configuration options, detailed analysis of expected electrical generation for financial modelling.
• Conceptual Design: equipment specification (size of PV system, size and types of modules of inverters, racking system, module tilt), layouts (3D AutoCAD), grid connection details, performance standards and preliminary drawings to form the basis for a Request for Proposal for EPC contracting.
• Detailed cost estimate for engineering, procurement and construction.
• Implementation plan.

Client

Financing

Period of implementation

Nigeria - Integrated Energy Supply Project at Abuja Technology Village Free Zone

ATV is the master developer of Abuja Technology Village, a science and technology park and special economic zone which is intended to become a preferred technology research, incubation, development and outsourcing destination, hosting biotechnology, information and communications, energy and minerals technology companies.

Energy supply, transmission and distribution are required for the site within which a cluster area of approx. 100 ha will be developed initially.

intec's services

Provision of an integrated energy supply concept for the science and technology park including the following:

• demand assessment
• analysis and recommendations on technology options for efficient power sources and delivery / grid connection
• technical feasibility study and basic layout for power generation options (including 72 MWp PV and 5 MW / 5 MWh battery storage)
• financial analysis including viability and risk assessment
• analysis of the regulatory framework

Client

Financing

Period of implementation

Pakistan - Study to Determine the Limit of Integrating Intermittent Renewable (Wind & Solar) Resources onto Pakistan National Grid

The Government of Pakistan encourages the development of renewable energy to close the gap between electricity demand and supply. The National Transmission and Dispatch Company (NTDC) is already in the process of integrating wind power, and many large and small solar parks have been added to NDTC's pipeline. NDTC requested to conduct the present power system study to clarify the limits of integrating RE into Pakistan's grid. The study includes the following subjects:

• Planning studies (load flow, dynamic and transient stability, impact of fault levels on substation protection and design, reactive power and voltage control, power quality issues, system flexibility requirements, system's frequency response)
• Operational studies (operation and control strategy, dispatch policy, methodology to forecast wind and solar power availability, determination of active spinning reserve)
• Financial analysis (determination of financial impact of wind and solar energy resources on Pakistan's overall energy mix)

All activities are closely coordinated with NTDC and the Alternative Energy Development Board (AEDB).

intec's services

• Overall project management and coordination;
• Data collection and organisation of local support activities;
• Coordination of planning studies;
• Development of the methodology to forecast wind and solar power availability;
• Presentation, discussion and agreement with NTDC and AEDB of the operational studies;
• Financial analysis, i.e. the determination of the financial impact of wind and solar energy resources on Pakistan's overall energy mix and the corresponding consumer prices. This analysis considers cost and price projection scenarios for the time horizon until the year 2022 and an assessment of the financial benefits of the Clean Development Mechanism (CDM).

Client

Financing

Period of implementation

Palestine - Solar PV for the North Gaza Emergency Sewage Treatment Plant

The Palestinian Water Authority (PWA) commissioned Phase 1 of the "North Gaza Emergency Sewage Treatment (NGEST) Project", which requires a total of 12 MW of electric power under full operation conditions. Several potential sources of power supply for the NGEST had been considered, but all of them were discounted for various reasons.

The present study, commissioned by the World Bank in collaboration with PWA and the Palestinian Energy and Natural Resource Authority (PENRA), assessed the feasibility of supplying NGEST with electricity generated from solar power sources.

intec's services

Assessment of life-cycle electrical load of the NGEST plant (max. 12 MW at full operation)

List and review options for power supply to NGEST (on-site diesel generation, additional power supply from Israel through a dedicated feeder, additional supply through expansion of the GPP's capacity - practicability, risks and assessment of levelized costs)

Assessment of the feasibility of solar PV power generation to meet at least part of NGEST's demand, i.e.

• resource availability - collection and interpretation of available data
• back-up power supply / batteries
• local infrastructure issues
• conceptual design and detailed costing
• preliminary environmental and social impact assessment
• economic and financial analysis
• development of an EPC contract format and determination of operation and maintenance requirements
• assessment of the potential impact of the local political environment on the project.

Client

Financing

Period of implementation