Abstract Background and Purpose: Currently, the idea of households - prosumers is broadly discussed in public governments, mainly in connection with both the energy security issues and the environmental issues. Therefore, the main goal of this paper is to present new agent model of household - prosumer and to compare two scenarios – “off grid household” and “on grid household”. The additional goal is to evaluate the impact of public support of solar electricity on the economic efficiency of household – prosumer projects (systems). Design/Methodology/Approach: The model is structured as a micro-level agent model, representing one household – prosumer. The model has the following general characteristics: one household with own electricity generation (photovoltaic panels), battery and in case of “on grid household” also connection to the grid. The main goal of the agent is to cover electricity consumption in household with minimal costs. The agent model of prosumer is tested and validated, using the empirical data. Results: The highest level of subsidy has significant impact on the economic indicators of selected scenarios. It causes lower investment costs at the beginning of the project and consequently shorter payback period (3-4 years earlier), positive cumulative cash flow, net present value and IRR in earlier period (approximately 5-10 years earlier, depending on the scenario). Conclusion: We can recommend to the government to continue with current system of subsidies, since it contributes to better economic indicators of particular solar electricity projects. On the other hand, the level of subsidy should be at least the same as in current year 2017, for the purposes of representing the significant part of the investment costs. Low level of subsidy has negligible impact on the economic indicators of households – prosumers projects. The developed agent model is suitable for the evaluation of economic impact of public support on households – prosumers.

中文翻译：

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太阳能电力的公共支持及其对家庭的影响-生产者

摘要背景和目的：目前，公共政府中广泛讨论了家庭-生产者这一概念，主要涉及能源安全问题和环境问题。因此，本文的主要目标是提出新的家庭代理模型-生产者，并比较“离网家庭”和“并网家庭”两种情况。另一个目标是评估公共支持太阳能对家庭生产者项目（系统）经济效率的影响。设计/方法/方法：该模型由一个微观代理模型构成，代表一个家庭-生产者。该模型具有以下一般特征：一个拥有自己发电的家庭（光伏电池板），电池，并且在“并网家庭”的情况下也与电网连接。该代理的主要目标是以最小的成本覆盖家庭的用电情况。使用经验数据来测试和验证生产者的代理模型。结果：最高级别的补贴对所选方案的经济指标具有重大影响。它使项目开始时的投资成本降低，从而缩短了投资回收期（较早的3-4年），正现金流量，净现值和较早时期的内部收益率正（约5-10年，视情况而定） 。结论：我们可以建议政府继续现行的补贴制度，因为它有助于改善特定太阳能发电项目的经济指标。另一方面，补贴水平应至少与2017年当前水平相同，为了代表大部分投资成本。较低的补贴水平对家庭生产者项目的经济指标影响微不足道。发达的代理人模型适用于评估公共支持对家庭（生产者）的经济影响。