For the solution of the problem basic principles can be summarized like; for collectors and storages;

• Gathering the collectors and tanks

• Organizing of system components

• Harmony with the building

• Providing aesthetical sufficiency.

When the flexibility of individual applications and the economy of natural convection systems are taken into consideration as the dynamics of common usage, it is clear that solution approaches has

to include both the individual usage and central systems.

The central systems are which transfer the heat that is gained from the collector area to a collective storage and enables each user of the building to benefit from the hot water in distinct units. It is obvious that, these systems can be configured in many ways depending on the utilization purpose, economy, qualitative and quantitative of the load and requirements of the users. As these systems are going to be large scale applications they have to be designed carefully and with the

help of computer programs which takes local climate take into consideration. One of the most important issue in these systems is to balancing the payments of different hot water consumptions of the users. And for this it is required to develop advanced technical and technological engineering approaches. It is apparent that the central system’s first investment costs are more expensive then individual systems. However, in long term the central systems are more economical, healthiness, permanent and can provide high quality solutions.

The individual usage systems can be described as an application form that allows to each user to install his/hers solar energy system in a pre-defined private area. When the economical and practical barriers of central systems are taken into consideration this approach which provides practical solutions are more effective for expanding the applications in short term. In this system approach which aims to gather and organize the collector and tank regions so as to allow individual usage; standardization, durability, user friendly installation, constructional infra-structure, maintenance, repair, recycling are the other important issues besides basic principles mentioned above.

By considering these application forms, 2 basic approaches can be mentioned for preventing the visual pollution caused by the systems:

1. Invisibility of systems,

• To obstruct the system visibility

• To use building integrated systems that seems like conventional material.

2. Integration of systems to building,

• Usage of building integrated systems

• Usage of systems as a building component as pergola, fender, parapet, eaves and etc)