ARCHIVESHISTORIQUES
DELACOMMISSION
COLLECTION RELIEEDES
DOCUMENTS "COM"
COM(82)513
Vol.1982/0170

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COMMISSION OFTHEEUROPEAN COMMUNITIES
COM(82)513 final.
Brussels.9September 1982
PARTICIPATION OFTHECOMMISSION ONBEHALFOFTHECOMMUNITY
INANNEXESVIANDVIIOFTHEIMPLEMENTING AGREEMENT FORA
PROGRAMME OFR&DINTHESOLARHEATINGANDCOOLINGSYSTEMS
OFTHEINTERNATIONAL ENERGYAGENCY
(Communication oftheCommission totheCouncil)
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VYi .1
C0M(82)513final.

COMMUNICATION FROMTHECOMMISSION TOTHECOUNCIL
OnJune24andonJuly6,1976,anagreementintheformofanexchange
ofLetterswasconcluded betweentheEuropeanAtomicEnergyCommunity
(Euratom)andtheEuropeanEconomicCommunity ontheonehandandthe
International EnergyAgency(IEA)ontheotherrelatingtocooperation
inthefieldofEnergyResearchandDevelopment .
Accordingtotheexchangeofletters,theEuropeanCommunities indica­
tedtheirintentiontonegotiate,onacasebycasebasis,theirparti­
cipationinsuch"Implementing Agreements "preparedwithintheframework
oftheIEAaswouldcontribute totheattainment oftheresearch and
development objectives oftheCommunity.Foritspart,theIEAtook
noteofthisintention andconfirmedthatsuchparticipation isopen
totheEuropeanCommunities .
Inapplication ofthisexchangeofletterstenImplementing Agreements
havebeenconcludedwhichhaveprovidedan"umbrella"frameworksetting
forthrulesfortheexecution ofanumberofR&D"tasks"described in
theannexestoeachofthesaidAgreements .Whilsteachparticipant
whensigningtheagreementconfirmsitsintentiontoparticipate inone
ormoretasks,provisions forthedevelopment ofadditional tasks,ac­
cordingtoaprocedure setoutinArticle2(b)oftheImplementing
Agreement,arealsospecified.
OneoftheseImplementing Agreements concerns aprogrammetodevelop
andtestsolarheatingandcoolingsystemsandfivetaskannexeswere
prepared,inwhichtheCommissionparticipated inAnnexesI,III,IV
andVallrelatingtovariousaspectsofstandardisation ofinformation
andmeasurement techniques inthisfield.TheCommission signedthe
Agreement onbehalfoftheCommunity on5October1977.
TheExecutive Committee whichmanagestheresearchdoneunderthis
Agreement hasnowdrawnuptwonewtaskannexes,referredtoasAnnexes
VIandVIIintheattacheddocuments .Theserelateto:
-theperformance ofsolarheating,coolingandhotwatersystems
usingevacuatedcollectors (AnnexVI)
-centralsolarheatingplantswithseasonalstorage;afeasibility
studyanddesign(AnnexVII)
TheCommission considers Communityparticipation isjustifiedfor
thefollowingreasons.AnnexVIproposestobuildupaninventory
ofknowledgeabouttheperformances ofvariousevacuatedcollector
systemsandcomparetheirresults.Eachparticipantwilldevelop
hisownsystemaccordingtospecification drawnupinagreementwith

otherparticipants andinformation aboutperformance willberegularly
exchanged.FortheCommission,theadvantageofparticipating in
thisprojectisthatitwillobtaincomplementary researchmaterial
aboutheatingandcoolingsystemsdoneelsewhereandsoprovideuse­
fulmaterialforfurtheringtheCommunity'sownresearchobjectives
inthisimportantfield.AnnexVIIconcernsthetechnicalfeasibility
andcosteffectiveness ofLargescale,seasonalstoragesolarenergy
systems.Again,theresearchwillinvolveinformation exchangeand
evaluationofdifferentsystemswhichwillhavebeenstudiedbythe
participants withaviewtoultimatelyselecting apossiblesystem
forapilotdemonstration .TheCommission'sparticipation inthis
Annexwillagainprovideadditionalcomparative researchmaterial
usefulforthedevelopment oftheCommunity'sownprogramme.Both
annexeswillalsogivetheCommissionaccesstoR&Dbeingdoneby
countries,suchasSwitzerland,Sweden,theUSandJapan,allofwhom
areacknowledged asadvancedinthisfield.
6.Asfarasdissemination ofinformation andintellectual propertyiscon­
cerned,noprovisionstothateffectareinsertedintheseannexes,but
itisunderstoodthattherelevantprovisionsoftheumbrellaAgreement
whichtheCommissionhasalreadysigned,willapply.However,
itistheCommission'sunderstanding andaconditionofitsparticipa­
tionthattheinformation obtainedisforthebenefitoftheCommunity
asawholeandisunrelatedtoanyparticularbenefitsacquiredby
individual MemberStatesoftheCommunity whoalsoparticipate inthe
Agreement.Anyinformation receivedbytheCommunity maybemade
availabletoallMemberStates.
7.Sinceboth•projectsaretasksharingtherearenofinancialimplica­
tionsforCommissionparticipation .Eachparticipant willberespon­
sibleforhisowncostsandisexpectedtocontribute amanyear
equivalent ofbetweentwotofiveinthecaseofAnnexVIandabout
twoandhalfmanyearsinthecaseofAnnexVII.However,inboth
casestheCommission'scontribution willnotinvolveextrastaffing
andcanbemetoutofongoingworkattheJRCinIspra.
8.TheAdvisoryCommitteeforprogrammemanagement CACPM)wasconsulted
andgaveitsunanimousapprovalforCommunityparticipation inboth
projectsatitsmeetingofSeptember1981.
9.TheCommission hasnowcompleteditsnegotiations onbothAnnexes
VIandVII,butbeforeformallyparticipating intheprojectsit
proposes,aswasdonebeforethe"umbrella"agreementwassigned,
toinformtheCouncilbeforehand .(*)
10.Consequently theCommissioninformstheCouncilofitsintentionto
participate intheadditionaltasksreferredtoasAnnexesVIandVII
specifiedfortheImplementing AgreementforaprogrammeofR&Dto
developandtestsolarheatingandcoolingsystems.
(*)Councilof18July1977,doc.R1615/77(ATO62)

AÎÏÏIEX vi
PERFORMANCE O?SOLAR HEATING .COOLIMG AIID HOT
VATER SYSTEMS USIMG EVACUATED COLLECTORS
1. Obpective ofTnnx
i
Theobjective ofthis Task istofurther theunderstanding ■
oftheperformance ofevacuated collectors insolar heating , ;
cooling andhotwater systems ,andtostudy ,document and i|
compare the performance characteristics ofsuch collectors ■ j
indifferent systems andclimates .Systems using either tutu- :
lar orflat evacuated collectors may beincluded inthis Task ,
m-
2. I'oT.3
rach Participant inthis Task will beresponsible for the
operation andanalysis ofatleast oneevacuated collector solar
heating ar.c/orcooling system .Attheir first meeting ,the
Participants concerned with the execution ofthis Annex will
define The general characteristics ofacceptable systems and
installations and develop adetailed programme ofwork .
After adoption ofthe programme ofwork ,theParticipants
shall conduct the following activities :
(a) rnofKv-Tvy'.t 0^Col "1 Syrt.nnr ,:
Each Participant shall develop and submit tothe
other Participants adesign oramodification ofitsexperi­
mental system ,including procurement related thereto ,inorder
toaccommodate evacuated collectors .Each Particpant 'ssystem
design ,including data collection instrunentaion plan and a
plan for conducting the'performance evaluation ,shall be
reviewed bytheother Participants ,who shall also make recom­
mendations .Those Participants who already have anevacuated
collector system inoperation atthe time ofinitiation oi
this Task shall submit tothe other Participants adescription
oftheexisting facility andequipment foradetermination
by t.'ieother Participants astowhether this facility and
cmlr root the r.*rooc : reouire-.onts .The r.irti.i' .r.ts
shall -determine thecontent ,form ,and themanner ofdistribution
among theParticipants ofthesemi-annual andfinal results .

("b)Construction r.ndProration ofInstallations
Forthose designs designated bytheParticipants ,
acting byunanimity ,asbeing inaccordance with thegeneral
characteristics ofacceptable systems and installations as
defined' bytheParticipants attheir first meeting ,l'or imolc -
·»
mentation ,each Participant will build theinstallations orna":
the required modifications toexisting installations asthe
case maybeandassemble *andinstall thesolar system compor.er .
and the data collection system .TheParticipants will conduct
the system perforxance tests inaccordance with theprogramme
ofwork .The system performance tests will include ,butnot
belimited to,evaluation ofthe overall system performance ,
reduction and analysis ofdata ,and supplemental simulation ar .
system studies Asmay berequired ,
tostrengthen and extend test results .
,- /;-
(c)Annlysin andRonortl n^ofSynton Perforer .*;«?
All oftheParticipants shall prepare andexchange
semi-annual status reports ontheperformance ofthe selected
systems .TheParticipants shall also prepare and excl.ar.~e
reports attheconclusion ofthe system performance tejtir.g .
TheOperating Agent will organise annual meeting
oftheParticipants ,alternating thelocation ofthemeetings
among theParticipants' countries .Status ,results ,andneed
formodification ofthesystems will bethenain topics for .
discussion andanalysis .
3» Time Schedule
Three ycar3 (July' 1982 toDecember 1985 )
4. Resultn
Theresults ofthi3 task will "be :(a)Semi-annual repcr
oftheParticipants ontheperformance ofthevarious evacuate
collector systems operated under this Task ,(b)Final rc-'jrt
toVeproonrod byeach Participant onits v.-or !:under t'r.cTasV .
usii gthosys;caperformance reporting format developed under
Annex Iofthis Implementing Agreement .Thereports will cor.;

CJ-3 -
performance data ,results andtheir interpretation ,andconclu
TheOperating Agent will summarise thereports inapaper tob
submitted totheExecutive Committee ,aswell astothe Parti­
cipants ,
5,PomorrlMltt-l onofthe Onor.itln ": .A^cnt
Inaddition tothe responsibilities described above ,the
Operating Agent will beresponsible for the overall management
ofthis Task and forimplementing actions required bythe
Executive Committee .
6. I^jclrret
(a)Each .Participant will bear itsowncosts incarrying
out theTad :,including costs ofthe installation ,instrumen­
tation ,reporting and travel .
,(b)Thecosts ofmeeting organisation will beborne by
the host country .
(c)Participation inthis Annex isexpected toinvolve
anannual level oftwo tofive man-year3 onthe part ofeach
Participant ,inaddition tothe costs for the development or
procurement ofthe evacuated collectors ,other system com­
ponents ,and data collection equipment .
7. Odorat ir.~ Aient
TheUnited States Department ofEnergy
8. Prrtici^.n-ts
TheContracting Parties which areParticipants inthi3
lask are thefollowing ::Canada
-Germany
;Japan Netherlands
■Sweden
Switzerland
United îlingdoa
United States

ANNEX VII
CENTRAL SOLAR HEATING PLANTS WITH SEASONAL STORAGE :
FEASIBILITY STUDY AND DESIGN
H
Objectives ofTask *
The objectives ofthis Task are todetermine the technical
feasibility andcost-effectiveness oflarge-scale ,seasonal
storage solar energy systems for theheating ofbuildings ;
toevaluate themerits ofalternative large-scale system
designs for collecting ,storing andusing solar energy ;and
toprepare detailed system designs for specific site para­
meters .
Means j
i
The task will beundertaken inthefollowing Phases inorder
toaccomplish theforegoing objectives : ,/
Phase I :Literature survey ,development ofsubsystem and
system simulation andoptimization ofcomputer
codes ,selection ofsystem components system op­
timization ,andpreliminary designs .
Phase II :Detailed system designs forspecific site para­
meters
Phase I
Phase Iwill bedevided into five Subtasks .Close co-ordina­
tion ofthework under the Subtasks will bemaintained through
information exchange ,reports bytheOperating Agent andpe­
riodic review meetings ofallParticipants .

-2-
. o
(a) ~==-E=i=i=~i ==
(Lead Country :Canadian Participant )
Under theguidance oftheLead Country ,theParticipants
will review theavailable literature concerning existing
models suitable for theanalysis andoptimization ofso­
lar seasonal heating systems .Thevalidity andcomplete­
ness ofthese n^odels will betested bytheParticipants .
The Participants will develop computer codes for para­
meters (size ,performance ,cost ,etc.)optimization and
for simulation ofsolar seasonal heating systems based on
the best available solar subsystem and systems models .Da­
tafrom Subtasks 1(b),1(c)and 1(d)asdescribed below
will -beutilized bytheParticipants inperforming design
optimization andanalysis studies using different collec­
tor ,storage anddistribution subsystems ,fordifferent
climates (weather tapes ).These studies will involve pre-
/
liminary code development ,components input andsystem
analysis ,followed bysuccessively more refined cycles of
code development ,components input and system analysis ,
leading finally toone ormore recommended complete solar
seasonal heating systems .
Atallstages ,theParticipants will examine theeconomic
aswell astechnical aspects andwill establish criteria
forevaluating thesystems which aredeveloped .
(b)Solar_Collector_Subsys terns
(Lead Country :United States Participant )
TheLead Country will co-ordinate thework oftheParti­
cipants whowill review solar collector subsystems and
whowill identify those most suitable forlarge-scale
seasonal storage systems ,based onperformance andcost-
effectiveness .

-3-
The Participants will compile cost andperformance data
ontherecommended collector subsystems and theLead
Country will provide this data foruse inSubtask 1(a).
Initial computer codes andsystem studies from 1(a)will
beutilized bytheParticipants inproviding more refined
inputs torecommendations and data oncollector subsystems ,
asafunction ofoperating temperature ,orientation ,etc ..
¥
TheParticipants will identify requirements for technical
improvements orcost reduction .
Hea|_S tor^ge
(Lead Country :Swiss Participant )
The Participants will conduct areview ofheat storage
concepts an<|technology andthose most suitable forlarge -
scale seasonal storage will beidentified onaperformance
and cost-effective basis .
I
The Participants will compile characteristics ofrecommen­
dedheat storage subsystems and theLead Country will pro­
/
vide this data foruse inSubtask 1(a).
The Participants will also identify requirements for tech­
nical improvement orcost reduction .
Participants under this Subtask shall discuss with the
Participants ofone ormore Annexes tothe IEA Implemen­
ting Agreement for aProgramme ofResearch andDevelop­
ment onEnergy "Conservation through Energy Storage con­
cerning possible co-ordination ofefforts .With theappro­
val oftherespective Executive Committees ,thePartici­
pants insuch Annexes would enter into awritten arrange­
ment with theParticipants inthis Subtask setting forth
theprecise terms andconditions ofsuch co-ordination .

-4-
(d)Heat_Distribution_System
(Lead Country :Swedish Participant )
The Participants will review heat distribution concepts
andtechnology and those most suitable forlarge-scale
seasonal storage will beidentified onaperformance
and cost-effective basis .
I
The Participants will compile characteristics ofre­
commended heat distribution systems and theLead Country
will provide this data foruse inSubtask 1(a).Require­
ments for technical improvement orcost reduction will be
identified bytheParticipants .
(e)Site_Inventor^f_and_Prel iminary_Si te_S2ecif ic_Sys tem_Design
(Lead Country :Swedish Participant )
Each Participant wi "11conduct aninventory ofpotential
sites ,andwill develop a1preliminary design ,including
cost analyses ,for alarge-scale solar heating plant
/
with seasonal storage ,for one ormore specific sites .
They will utilize for this purpose therecommended com­
puter programs andoptimized parameters developed inSub­
task 1(a).
Attheconclusion ofPhase 1,allParticipants will meet
toreview thepreliminary site-specific designs prepared
under this Subtask .They will then select those which are
suitable forfurther design andevaluation work .The se­
lected .system designs mayuse existing technology only ,
orrequire improved components (which may bealready un­
derdevelopment orforwhich development must beinitiateq )
Inmaking their selection ofsystems forfurther develop­
ment ,theParticipants will consider thelegal andenvi­
ronmental aspects involved ,aswell astechnical perfor­
mance andcost .TheOperating Agent will prepare agene­
ricenvironmental impact assessment forPhase I(e)
systems .

-5-
PhaseII-DetailedSystemDesign
FollowingthecompletionofPhaseI,eachParticipantdesiring
tocontinueinthisTaskwillproceedwiththedevelopment of
adetailedsystemdesignforspecificsiteparameters and
costingofalarge-scalecentralsolarheatingplantsuitedto
theirneedsatapossiblesitewithintheircountry.Twoor
moreParticipants mayjointlydevelopsuchadesignandcosting.
Participants notwishingtocontinueinthisTaskmaywithdraw
uponagreementoftheExecutiveCommitteeinaccordancewith
Article10(g)oftheImplementing Agreement.
EachParticipant'sworkwillincludetheconductofexperi­
mentsasrequired,and,drawinguponthedataandresultsof
PhaseI,'theselectionanddesignofanappropriate system.
ExtensiveliaisonbetweenParticipants willbemaintainedduring
PhaseII.Participants willreviewalldesignsatsixmonthin­
tervalstoassureinformationexchangeandtoavoiderrorsin
designandco-ordination .
IfthePhaseIIParticipants sodecide,theconstruction of
thesolarheatingplantandtheevaluationoftheperformance
andcost-effectiveness oftheplantmaybecomethesubjectof
anewAnnextothisImplementing Agreement.
Ti^ie_Schedule
FouryearsafterthedateofapprovalofthisAnnex.Workon
theSubtasks(a)-(d)ofPhaseIwillcommencethreemonths
aftertheapprovaloftheAnnexandwillbecompleted24months
afterapprovaloftheAnnex.Subtask1(e)willbecompleted
30monthsafterapprovaloftheAnnex.JointPhaseISubtask
meetingswillbeheldsemi-annually .
ThetimescheduleforPhaseIIwhichisexpectedtorunfor
18monthswillbedecidedbythoseParticipants wishingto
proceedtoPhaseII.PhaseIIdesignreviewmeetingswillbe
heldatsixmonthintervals.

Results
The results ofPhase Iwill be :
(a)Aliterature survey ofthecomponents andsubsystems
suitable for large-scale solar seasonal storage systems ;
h
(b)Ananalytic model forsimulation andoptimization oflarge -
scale solar seasonal storage systems ;
(c)Areport identifying recommended solar seasonal storage
systems ,comprised ofalternate combinations ofrecommended
components and subsystems ;
(d)Recommendations foroptimization ofthedesign parameters
for these systems ;
(e)Recommendations forresearch anddevelopment toimprove
the technical and economic viability oflarge-scale solar
seasonal storage systems ,ifrequired ;
I
Copies oftheabove documents and |reports will bemade avail­
able toall theParticipants inthis Task inaccordance with
paragraph 5(d)below .
(f)Site inventory andpreliminary system design studies within
each Participant 'scountry toenableadecision tobemade
whether ornot toproceed withadetailed site-specific
system design .
The results ofPhase IIwill be :
(a)Afully costed site-specific design ofalarge-scale solar
system with seasonal storage for each Participant 'scountry
orgroup ofcountries .
The results ofPhase IIwill serve asabasis for adecision
bytheParticipants whether ornot toproceed with construction
Responsibili tiesofOperatin gAgent
TheOperating Agent ,inaddition tothose responsibilities
mentioned inParagraph 2above ,will ensure theoverall co­
ordination ofwork among thevarious Subtasks andwill also

-7-
beresponsible for :
(a)Working with theLead Countries toco-ordinate thesteps
required inPhase I(a)-(d)above ;
(b)Leading thesystem design inPhase 1(^e)andPhase II;
„Lc)0Reporting totheExecutive Committee andimplementing
decisions oft>heExecutive Committee ;
(d)Compiling anddistributing interim andfinal reports on
Task results and recommendations .
TheLead Countries forSubtasks 1(a)-(d)will berespon­
sible forplanning and arranging thework ineach Subtask in
accordance with the schedule which will bedeveloped atthe
first meeting oftheParticipants .They will also berespon­
sible forproviding the input an,d data totheother Subtasks
asrequired for the conduct ofthework .
Budget y
Phase I
Each Participant will bear thecost ofits own studies ,re­
search ,anddevelopment ,including costs ofreporting and
travel expenses ofrepresentatives .Itisexpected that the
Operating Agent will contribute 6man-months inPhase Iand
that theman-month contributions bytheother Participants
will beasfollows :
Subtask
1(a )System Studies
1(b )Collector System
1(c )Storage Systems
l(d )Distribution Systems
1(e )Preliminary DesignLead_Coun tryTman-months ;
18
6
12
4Each_of theotherFartTcTpants –
Tman-months )
3
6
2
12

-a-
Phase II
Each Participant will bear thecost ofitsown design and
costing ,orinthecase ofjoint development ofdesign and
costing thecost will beborne jointly asagreed between
theParticipants .
Operatmg Agent k
Swedish Council for Building Research
TheContracting Parties who areParticipants inthis Task
are the'following :
/"tobelisted 7