都2022年了,你还不会看天然气账单吗?

想必大家都知道澳洲的电费在全球算是数一数二贵的了。因此,很多人都把节省能源开销的重心放在了电费账单上。但是,对于很多家庭而言,其实天然气费也是不小的一笔开销,尤其是热水、地暖都走天然气管道的家庭。

那今天小胖伏就来给大家科普一下,怎么看澳洲的天然气账单。让你可以清楚家里的天然气开销到底是贵在了什么地方。

首先需要给大家明确一点,那就是在澳洲,天然气的供应与零售是分开的两个环节
天然气的供应公司主要负责天然气的供应、读气表、获取数据等工作;(大家可以在账单首页的右上角看到您家所使用的network,network是按照地域划分的,无法更换)

那天然气零售公司则主要负责根据天然气供应公司提供的数据为大家出具账单,为大家开通天然气账户等。像我们Discover Energy,Origin,Energy Australia等都属于天然气零售公司。

下面,小胖伏来给大家讲解一下,澳洲的天然气账单应该怎么看!

天然气费的组成

在澳洲,天然气的费用主要是由两部分组成的。

一部分是usage charge(用量费),另一部分则是Daily Supply Charge (服务费)。
所谓Usage Charge,就是与你家天然气的使用量直接相关的用量费,即使用量 x 每MJ的单价。通常来说,如果你家使用的天然气比较多,那这部分的费用就会高一些。
在澳洲,大部分的天然气公司对于Usage Charge这个部分都采用的是“分段计费”的方式,也就是将一天的平均gas用量分为几个阶段进行收费
以Discover Energy新州地区居民gas账单为例,
如果你们家的天然气账单,90天的使用量为5220MJ,平均每天使用58MJ。天然气公司就会将58MJ分为三个阶段进行收费。
第一个阶段是前20.7123MJ;第二个阶段是20.7123MJ——41.0959MJ;第三个阶段则是41.0959-90.411MJ;那不同的阶段都会有不同的价格收费标准。
这也就是为什么,你在天然气账单上会看到几个steps的收费。而这些都是基于您真实使用量的一个收费,也就是我们常说的usage charge部分。(*上述阶段的划分可能会根据天然气公司以及地区的不同而有所差异)


Daily Supply Charge:
那除了Usage Charge部分以外,天然气账单还有一部分收费叫做Daily Supply Charge,也就是我们常说的服务费
那只要你们家开通了天然气账户,不管你在这个期间是否有使用天然气,这个Daily Supply Charge的费用都是会被收取的。

天然气的账单周期

在澳洲,大部分地区的天然气账单周期都是三个月。但是,维州的天然气账单周期是两个月

那这个账单周期主要是由读表周期决定的。气表的读数需要读表员定期前往用户家里进行人工查表,获取数据。
那在天然气供应公司,获取到气表的数据之后,天然气供应公司会将数据发送给天然气零售公司,然后由天然气零售公司为大家出具账单。

在账单上,天然气零售公司会为大家标明,账单周期、价格、使用量等信息。

天然气账单的单位转化

除了天然气的费用组成,账单周期等,相信大家一定都在天然账单中看到过common factor,conversion factor以及heating value等信息。
并且细心的用户会发现,这几个数值在不同季度的账单中,可能会有些许不同。那接下来,小胖伏就来给大家讲讲,这些factor到底是什么,并且他们为什么会在每个季度的账单中有些许不同。
不论是common factor,还是conversion factor,还是heating value,他们都是一个换算系数
基于我们在气表上读取到的数据是以立方米为单位的,但是,立方米并不是账单上的计费单位。我们的账单都是使用兆焦(MJ)来进行计费的。因此,天然气供应公司就需要使用一个换算系数,将气表上的立方米(M3)数据转换计费的热量单位——兆焦(MJ)。
那为什么我们每一次账单上面的这个换算系数都不同呢?
这主要是因为每立方米的气体分子是随着温度、压力、物理成分等因素而变化的。因此,这也就是为什么,我们每一次账单中的换算系数都不一样了。因为,不同季节的气体分子所释放的能量都是有些许差异的。
需要跟大家强调一下,这几个系数都是由天然气供应公司(比如Jemena Gas Network)决定的。

接下来,小胖伏为大家整理了天然气的账单的细节:

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