Veda2.0 Released!


How to achieve energy efficiency improvement in VEDA2.0 technology?
#1
随着技术的进步,它的能源效率肯定会提高,例如,光伏发电的效率会提高。这种技术进步和能源效率的提高如何反映在 VEDA2.0 中?
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#2
> 随着技术的进步,它的能源效率肯定会提高,例如,光伏发电的效率会提高。这种技术进步和能源效率的提高如何反映在 VEDA2.0 中?

In both TIMES and VEDA you can define any efficiencies with year indexes, such that the process efficiency is assumed to develop over time according to those year-specific efficiency parameters you define, in a vintage-specific way (efficiencies defined for vintage years) or in a non-vintaged way.

For PV systems, I think the energy efficiency is usually assumed to be constant 1 (100%) in both energy balances and energy system models (or close to 1 if some own-use of power is assumed). That is because the primary energy consumption of PV systems is by convention assumed equal to the power generated. I think it would not make too much sense to model the gross solar radiation as an input to PV system processes, but instead you could define the square meters needed for PV systems by using an auxiliary input commodity representing the space requirement, and define the number of square meters needed per kW of installed PV power, by using the NCAP_COM(region,year,process,commodity,io) parameter.  That could be a useful (and vintaged) efficiency parameter for PV systems, describing the efficiency improvement over time, and additionally giving the total space (rooftop or ground) requirements, which may have limited potentials.
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#3
[quote pid="7898" dateline="1734983740"]
Antti-L> 随着技术的进步,它的能源效率肯定会提高,例如,光伏发电的效率会提高。

在 TIMES 和 VEDA 中,您都可以用年份指数定义任何效率,这样就可以根据您定义的那些年份特定的效率参数,以特定于年份的方式(为年份定义的效率)或以非年份的方式,假设过程效率会随着时间的推移而发展。

对于光伏系统,我认为在能量平衡和能源系统模型中,能源效率通常都假设为常数 1 (100%)(如果假设部分自用电力,则接近 1)。这是因为按照惯例,光伏系统的一次能源消耗等于产生的电力。我认为将太阳总辐射建模作为光伏系统流程的输入没有太大意义,相反,您可以使用代表空间需求的辅助输入商品来定义光伏系统所需的平方米,并定义每千瓦装机光伏发电所需的平方米数。 通过使用 NCAP_COM(region,year,process,commodity,io) 参数。这可能是光伏系统一个有用的(且经过验证的)效率参数,描述了随着时间的推移效率提高,并额外给出了可能具有有限潜力的总空间(屋顶或地面)要求。
[/quote]
明白了,非常感谢!
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