Foreword E;Akm':
The international Energy Agency (IEA) founded in November 1974, is an autonomous body a^U)2{A*f
within the framework of the Organisation for Economic Co-operation and Development \yIan< q
(OECD) which carries out a comprehensive programme of energy co-operation among its 23 IQ$cLr-S
member countries. The European Commission also participates in the work of the Agency. `Ap<xT0H
The IEA PhotoVoltaic Power Systems Programme (PVPS) is one of the collaborative R&D YueYa#7z
agreements established within the IEA, and since 1993, its Participants have been conducting a u@V|13p<
variety of joint projects in the applications of Photovoltaic conversion of solar energy into 8|5ttdZ
electricity. F }/t V 7m
The Overall programme is headed by an Executive Committee composed of one representative CK<Wba
from each participating country, while the management of individual research projects (Tasks) /i'dhiG
is the responsibility of Operating Agents. Currently nine Tasks have been established in the fwe4f
IEA PVPS programme. pX5#!)
The Twenty one members are: Australia (AUS), Austria (AUT), Canada (CAN), Denmark ^lB=O
(DNK), European Commission, Finland (FIN), France (FRA), Germany (DEU), Israel (ISR), UcZ20i nj0
Italy (ITA), Japan (JPN), Korea (KOR), Mexico (MEX), The Netherlands (NLD), Norway (#uz_/xXa
(NOR), Portugal (PRT), Spain (ESP), Sweden (SWE), Switzerland (CHE), The United h!k[]bt5
Kingdom (GBR), and The United States (USA). 4<j)1 i=A
Task III of the PVPS programme, active since 1993, focuses on the exchange of information, |@6t"P ]@
quality assurance and technical surveys on stand alone PV applications. Stand-alone PV cPFs K*w
systems will continue to represent a significant PV market segment, not only in developing }XJA#@
countries, but also in the important home markets of industrial countries. Experts from 15 IEA 3}: (.K
countries are sharing their experiences in this area. (n4\$LdP-
This battery guide is intended for a wide use also close to the end customers to increase the ] LcCom:]
hands on battery knowledge and thereby increase the system reliability and reduce the lifecycle b0QC91
cost for battery storage in small stand alone photovoltaic systems. Also some basic %\i
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environmental concerns are addressed. The report has been prepared under the supervision of Q L 0
Task III by: {5% u G2g
Bo Andersson, Catella Generics, (battery expertise) (SWE) FTVV+9.l:
Staffan Ulvönäs, (illustrations) (SWE) s7"NK"
Bengt Perers, Vattenfall Utveckling AB (PV system and applications expertise) (SWE) eflmD$]SW
06 December 1999
