【Report Name】：	Study and Evaluation of Installed Stand-alone Mini-grid Systems
【Issued Date】：	June 2007
【Payment mode】：	Paper
【Price】：	Negotiation Separately
【Contact Phone】：	62558293-0

【Abstract】
So far, more than 700 Stand-alone Mini-grid PV or PV Hybrid systems were installed and run for more than 1 year by both of SDDX and KfW programs. The experiences from already installed systems of the 2 programs are very valuable to the further development. The evaluation of the both programs will present guidance to the next scale-up programs. This report presents the evaluation about the installed stand-alone mini-grid systems based on the study and analyses of the site investigated information and recorded system data.

【Content】
1.　　Background
1.1　  Survey
1.2　  SDDX Program
1.3　  kfW Program
1.4　  Future Development and Following Program
2.　　Objective of the project
3.　　Implementation and Steps
3.1　  Research Subjects
3.2　  Questionaire Design
3.3　  Data Collection and Downloading
3.4　  Data Summarization and Processing
4.　　Results and Analyses for survey on stand-alone village power system
4.1　  System Design and composition
4.1.1  System Diagram of SDDX（QH）program
4.1.2  System Diagram of kfW Project program
4.2　  Statistical and Analysis on village electric loadings
4.2.1  General Introduction
4.2.2  Statistical and Analysis on SDDX（QH）Program
4.2.3  Statistical and Analysis on kfW Program
4.3　  Statistics and Analysis about the Operators and their knowledge&skills
4.3.1  Statistical and Analysis on operators of SDDX（QH）Program
4.3.2  Statistical and Analysis on operators of kfW Program
4.3.3  Statistical and Analysis on operators’ knowledge and skills
4.4　  Statistical and Analysis on operators’ salary and daily work
4.4.1  Operators’salary
4.4.2  Operators’daily work and working time
5.　　Statistics Analysis of Household Questionnaire
5.1　  General Introduction
5.2　  Electric Access Impact on Villagers’ Daily Life
5.2.1  On Leisure Life
5.2.2  Villagers’s Schedule
5.3　  Statistics of Various Loads Ownership of Households
5.3.1  Statistics of Owned Appliances
5.3.2  Statistics of Appliances Planned to Buy
5.3.3  Statistics of Appliances Owned-rate with different families’ economic conditions
5.4　  Various Loads Owned-rate and Consumption of Households
6.　　Statistical Processing of System Operation Data and Results Analysis
6.1　  Forms and Contents of Raw Data
6.1.1  SDDX（QH） Program
6.1.2  kfW Program
6.2　  PV-array output
6.2.1  PV-array output（DC）of SDDX（QH）program
6.2.2  PV-array output (AC) of kfW program
6.3　  Output (AC) of PV- battery-storage System to the Grid
6.3.1  SDDX (QH)
6.3.2  kfW QH-1B
6.3.3  kfW YN-1B
6.4　  Charge/discharge energy (AC) and efficiency of Battery-Converter component
6.4.1  kfW YN-1B
6.4.2  kfW QH-1B
6.5　  SDDX(QH) Charge/discharge energy (DC) and efficiency of Battery and other parameters
6.6　  kfW QH-1B Charging/Discharging Energy and Efficiency of Battery
6.7　  Statistical Analysis of Battery status of charge (kfW Program)
6.7.1  Definition and Classification of Battery status of chargel
6.7.2  kfW YN-1B
6.7.3  kfW QH-1B
6.8　  SDDX (QH) System Output (AC) and Efficiency
6.9　  kfW YN-1B System output(AC) and consumption (AC) and efficiency
7.　　Conclusions
7.1　  Introduction
7.2　  Village households
7.2.1  Impacts on their daily life
7.2.2  Appliances presently owned by the villagers
7.2.3  Appliances desired by the villagers
7.2.4  Appliances ownerships in families with different economic status
7.2.5  Daily electricity consumption per household with different families’ economic conditions
7.3　  Villager Independent Power Systems (VIPS)
7.3.1  Daily average output of component ratio power
7.3.2  Effects of environment temperature on PV component output and their utilizations - SDDX(QH)
7.3.3  Grid-connected output (AC)
7.3.4  Energy and efficiency of battery C-D energy storage system
7.3.5  Statistics of VIPS supply and consumption (AC) and efficiency
7.4　  VIPS loadings
7.4.1  Basic life electricity consumption
7.4.2  Productive and commercial loadings
7.4.3  Public loadings
7.4.4  Other Loadings
7.5　  Operators
7.5.1  Operator training
7.5.2  Operator education and skills
7.5.3  Operator daily tasks
7.5.4  Operator schedule
7.5.5  Operator salary
8.　　Suggestions
8.1　  System design and construction
8.1.1  Optimization of system design
8.1.2  Loadings
8.1.3  Electricity consumption
8.1.4  PV component output
8.1.5  Diesel power generators
8.1.6  Single-phase power supply
8.1.7  Control and data acquisition
8.1.8  Users electric meter
8.2　  Operation and maintenance management
8.2.1  Project construction management
8.2.2  Operation management
8.2.3  Operator selection and training
8.2.4  Electricity consumption management
8.2.5  Diesel power generator maintenance management
8.2.6  System management and maintenance
8.2.7  Users
Annex:
Annex 1 Forms of the survey table
Annex 2 Sorted out survey information
Annex 3 Samples of recorded data and primary process result
Annex 4 System diagrams
Annex 6 About the operator
Annex 7 Information of households
Annex 8 Data analyses of SDDX(QH)
Annex 9 Data analyses of kfW prject