1. Gerard van Amerongen Oktober, 2017
8C04.1 SK-Scope Products
Gerard van Amerongen
Oktober, 2017

2. Scope feasibility study
The feasibility study
On request of the Solar Keymark network group:
Feasibility study: broadening the scope of Solar Keymark in direction of solar thermal systems and systems with solar contribution.
Extend
Scope feasibility study

3. Resulting proposal A new approach to system certification:
A new certification approach
No system certification
No surveillance at supplier, less administrative burden and more flexible
But system quality declaration, based on
certification of the tool and the components, combined by recognition
A new method for performance determination
Based on the new EPBD methods (CEN EN series)
Inputs from the Solar Keymark component datasheets

4. Why a system certificate?
Potential market values:
Uniform product specifications
Product comparison, input for installation planners, trade service products like guaranteed results.
Conditions for regulations
E.g. member state EPBD and European ErP
Support schemes
E.g. subsidy schemes
And indirect market values:
Make the current SK scheme for custom built system succesfull
Support for the current Solar Keymark schemes for components

5. Current Solar Keymark certification schemes - Type certificates -
Solar collector
Component of a solar thermal system.
Embedment market mechanisms: ++
Success: certificates issued
Heat storage tank
Component of a solar thermal system
Embedment market mechanisms: +
Success: - 1 certificates issued
Solar control
Embedment market mechanisms: -
Success: - 1 certificates issued
Factory made solar water heater
Solar thermal system, but limited to solar water heaters
Success: certificates issued
Custom built solar thermal system
Solar Thermal system, but not yet fully implemented
Embedment market mechanisms: +/-
Success: -- 0 certificates issued

6. New approach - the certification -
No more system certification, but
Declaration of quality, stating:
System composed of SK certified components
Assembly in accordance with EN
Performance in accordance with EN , using a SK certified calculation tool
Issues by a SK recognized company
Faster, easier, more flexible and cheaper, fitted to a system market, that typically:
Less duplicates in a series than for component production
Shorter lifespan and design time than for component production
Market values can be maintained by a declaration

7. New approach - the method -
General requirements according to EN
Performance according to EN
but, with one preferred method based on the new EPBD standards
Starting with the open source SolTherm simulation model (6C14_1_Other_model )
and complete the full implementation of the method
Future developments:
From solar thermal systems to systems with solar contribution
The EPBD framework facilitates this
From applications in buildings to large
systems (e.g. heat distribution)

8. Industry position

9. Work in progress Project participants representing industry:
Solair systems (Teun Bokhoven)
Good proposal, especially when offered through web platform
ESTIF (Pedro Dias)
Participants from the workgroup:
Oscar Mogro (BDR Thermea)
Awaiting the validation against DST testing
The requirements for SK on tank and controller is a major problem
Christian Stadler
Several informal talks with industry representatives
Alexander Werner (BDH)
To much extra work and costs: no explicit support
Robbert van Diemen (HR solar)
Good proposal, assuming low costs and other burdens

10. Evaluation Doubts on costs versus benefits
To be expected
Benefits are not yet manifest and fear of high costs
Costs should be significantly lower then full system certification (current situation)
Proposal should be seen as an improvement (at the least)
Challenge: get companies interested to issue declarations
This is a main challenge to introduce the new approach for a competitive price level!
Requirements on Solar Keymark for tank and control
Requirement for control can be skipped with little consequences
Requirement for tank is complex:
The data from the datasheet is needed
The current tests for the ErP tank label are not suitable (accuracy!)

11. Plan of actions

12. Actions Revision of scheme rules for custom built systems
Fully implement for water, space and combi heaters
Allow for SolTherm (exclusively?)
Workgroup to manage Solar Keymark software tools
Scheme rules for Soltherm, ScenoCalc and future tools
Base financing from SCF
Draft requirements for recognition addressing companies issuing declaration
E.g. first phase be active member of software management group
Next phase link to formal CEN standard
Revision of standards involved
EN , EN and EN

13. Actions and more Supporting tasks:
Extend the method to systems with solar contribution
Open the method through web platform
Work on embedment in market mechanisms
Move towards applications outside the built environment

14. For your attention