The specific contributions of activities to household electricity demand
The specific contributions of activities to household electricity demand
复制标题
DOI：
10.1016/j.enbuild.2019.109498
复制
发表时间：
2019-12-01
影响因子：
6.7
通讯作者：
Diakonova, Marina
中科院分区：
文献类型：
--
作者：
Grunewald, Phil;Diakonova, Marina
在本文中，我们提出了新的方法来收集和分析家庭活动和电力消费数据。我们展示了如何使用这些数据以两种不同的方式建立活动和电力消耗之间的关系。首先，我们在活动和当时的电力需求之间建立直接关联。这种电力足迹提供了一个洞察到典型的负载强度的活动，其中可以包括其他活动，通常在时间接近执行。我们的新贡献是边际电力需求的概念，可以归因于特定的活动。为了分解和近似这种活动的负载，我们提出了一种新的回归方法。一个活动的边际需求是基于它对18，000多个活动对中任何其他活动的相对负荷贡献。膳食类型作为明显可区分的活动而突出。在编写本报告时，与热饭有关的活动对需求的积极贡献最大，而冷饭往往会减少需求。尽管有直接的能源消耗，但热饮等活动可能会导致当时需求的总体减少。将讨论这种边际指标的潜力，作为了解能源服务需求的新方法。与传统的将需求归因于器具不同，活动可能有负的边际需求。这为能源服务需求的含义概念化以及通过积极行动鼓励减少或转变需求的方法提供了新的机会。(C)2019作者由爱思唯尔公司出版
In this paper we present new methods to collect and analyse household activity and electricity consumption data. We show how such data can be used to establish relationships between activities and electricity consumption in two different ways. First we create direct associations between activities and the electricity demand at the time. This electricity footprint gives an insight into the typical load intensity of an activity, which can include other activities that are commonly performed in close temporal proximity.Our novel contribution is the concept of marginal electricity demand which can be attributed to specific activities. To disaggregate and approximate the loads for such an activity, we present a new regression approach. The marginal demand of an activity is based on its relative load contribution to any other activity within a collection of over 18,000 activity pairs.Meal types stand out as clearly distinguishable activities. Hot meal related activities show some of the strongest positive contributions to demand, whereas cold meals tend to reduce demand at the time of reporting. Activities such as a hot drink can lead to an overall reduction in demand at the time, despite their direct energy consumption.The potential of this marginal metric will be discussed as a new way to understand energy service demands. Unlike conventional attribution of demand to appliances, it is possible for activities to have a negative marginal demand. This opens up new opportunities to conceptualise the meaning of energy service demand and approaches to encourage demand reduction or shifting through positive actions. (C) 2019 The Authors. Published by Elsevier B.V.