Deutsch | English

 O P A L     . . .   Click here to return to the homepage of the OPAL Address management, Document management, Dossier management, CRM, ...

Contact Dolphin's Design ...

Just so easy to use ...  OPAL  ... independent from Internet

Our Services
OPAL 7.4



Free ...

Approved aid and refugee organisations can apply for a free license for OPAL. Just think of the many addresses refugees might have until they find a new home.


Free for me?

Please contact us, if you would like to use our services or OPAL for a good purpose. We are happy to assess and consider your request.


OPAL Solar


OPAL Solar is the free edition to manage persons, addresses and projects. In addition OPAL Solar offers the dossier and document management for trial usage.



Overview with screenshots and descriptions of the OPAL Address management, Document management, Dossier management, CRM, ...

OPAL Solar offers ...

 100% of the OPAL functionality.

 the administration of up to 1000 persons and addresses.

 the administration of up to 200 projects.

 the administration of up to 200 activities and documents.

OPAL Solar can be extended at any time to any other OPAL product, such as OPAL Professional. There is no need to re-enter the existing data or to re-install the existing OPAL installation.


Obtain OPAL Solar for free

To support the build up of renewable energies, the following conditions apply for that free offer (see Press release, 17.2.2006 ):

You are entitled to obtain
a free license for OPAL Solar, if you use only electricity produced by 100% renewable energies (
natural power) in your private resp. in your business household. This offer is currently valid for the countries Switzerland, Germany, Austria, United Kingdom and New Zealand (other countries upon request).   Since 1.1.2008 we charge an administration fee of 50.- CHF for issuing a license for OPAL Solar.

Please ask your municipality or your electricity supply company, how to switch your power supply to
electricity produced by 100% renewable energies (solar, wind, water, biomass, geothermal). Only the relevant electricity subscription is necessary. All electric mains and power junction boxes in your household remain unchanged.

To obtain your free OPAL Solar license, please send a confirming document issued by your electricity supply company (latest invoice or confirmation) together with your OPAL License-Order to
:  Dolphin's Design Wolfgang W. Rehfus, P.O.Box 515, CH-8802 Kilchberg, Switzerland.

"All households using natural power provide a significant contribution to build up a future-qualified energy supply and by this means support peace, economy, security, neutrality and ecology." (, 17.1.2006)

On you find information regarding the opportunities by renewable energies for peace, economy, security, neutrality and ecology. as well as links to suppliers of natural power.


Copyright © 1995 - 2024 Dolphin's Design Wolfgang W. Rehfus
Last modified: 20.03.2024

This website was developed with 100% Natural Power (renewable energies).