Assessing the performance of solar heating and cooling systems, especially cooling systems using solar thermal or photovoltaic driving energy, in a common comparable format, is complicated by the numerous, alternative energy sources and design possibilities. A generalized technical and economic assessment methodology was developed and tested in the course of IEA SHC Task 53. This paper is summarizing the key facts for the assessment and showing the evaluation on the basis of two simulated cases including sensitivity analysis of main boundary conditions.

One case is comparing an air/water heat pump with photovoltaic and solar thermal support for a small multifamily house located in Madrid. The second case is comparing a solar thermal driven absorption chiller with a photovoltaic supported heat pump system for a hotel with dominant domestic hot water demand in Innsbruck.

The sensitivity analysis shows that photovoltaic and solar thermal systems are cutting across with the same trends. Lower costs have to be derived first, followed by the efficiency of the system. Cost competitiveness is achievable for both technologies with appropriate system design and control strategies.

评估太阳能采暖和制冷系统（尤其是使用太阳能或光伏驱动能量的制冷系统）的性能（可比较的通用格式）的方法非常复杂，因为其存在多种替代能源和设计可能性。在IEA SHC任务53的过程中，开发并测试了一种通用的技术和经济评估方法。本文对评估的主要事实进行了总结，并在包括主要边界条件敏感性分析在内的两个模拟案例的基础上显示了评估结果。

一个案例是将空气/水热泵与光伏和太阳能热能支持设施相比较，该热能支持设施位于马德里的一栋小型多户住宅中。第二种情况是将因斯布鲁克的家用热水需求占主导的酒店的太阳能热驱动吸收式制冷机与光伏支持的热泵系统进行比较。

敏感性分析表明，光伏和太阳能热力系统正在以相同的趋势发展。首先必须降低成本，然后是系统的效率。通过适当的系统设计和控制策略，两种技术都可以实现成本竞争力。