Heat pump revisions for nl2023 - #3472
Conversation
| - electricity_output_capacity = 0.0 | ||
| - free_co2_factor = 0.0 | ||
| - heat_output_capacity = 0.0049 | ||
| - heat_output_capacity = 0.198 |
There was a problem hiding this comment.
And didn't we want to align it with the space heater?
There was a problem hiding this comment.
I see what went wrong. It accidentally uses 0.22 as a capacity for the boiler instead of 0.022
fever.capacity.network_gas is also changed from 0.022 to 0.22 for this one
And you're right, we did discuss to align with the space heater. I'll fix that
There was a problem hiding this comment.
I think this increase might be related to the increase of fever.capacity.network_gas, I'm not sure which parameter "goes first" and determines the other.
| - fever.technology_curve_type = tech_constant | ||
| - storage.cost_per_mwh = 154736.8 | ||
| - fever.type = producer | ||
| - storage.cost_per_mwh = 0.0 |
There was a problem hiding this comment.
Is it correct that this value has been set to zero?
There was a problem hiding this comment.
Old node source analysis did not include storage cost, nor did the other heat pump node source analysis. The storage volume is also set to 0 so it should not matter.
| - input.electricity = 0.226111 | ||
| - input.network_gas = 0.20861 |
There was a problem hiding this comment.
Note that below the input.ambient_heat, electricity and network_gas parameters are also defined with ~, retrieving from (full) datasets and ingraph_methods with sparse graph queries, retrieving from derived datasets. What is the intended data route: fixed efficiencies of dataset-dependent efficiencies?
There was a problem hiding this comment.
I think the intended route is the dataset-dependent efficiencies, meaning that these hard-coded values should be removed.
There was a problem hiding this comment.
If these values are processed somewhere in the dataset, note that these shares currently sum to 1.0. It might be that this should be corrected somewhere.
There was a problem hiding this comment.
You are right, these values should not be here.
This was somewhat of a mistake to put them here but we wanted to keep te calculations. They should not have been included in the rake
| - fever.capacity.network_gas = 0.022 | ||
| - fever.base_cop = 2.1044 | ||
| - fever.capacity.electricity = 0.001704 | ||
| - fever.capacity.network_gas = 0.22 |
There was a problem hiding this comment.
Is the factor 10 increase of fever.capacity.network_gas compared to the old value correct?
There was a problem hiding this comment.
No it is not, see my comment on the heat_output_capacity comment from Matthijs. I've changed it in the NSA file on etdataset and manually changed it here.
| - storage.cost_per_mwh = 0.0 | ||
| - storage.decay = 0.0 | ||
| - storage.volume = 0.005 | ||
| - storage.volume = 0.0 |
There was a problem hiding this comment.
Is it correct that this value has been set to zero?
There was a problem hiding this comment.
On second thought. It might not be. In the other three NSAs there's no storage volume but it does make sense to have hot water storage for a full-electric heat pump. While it might not be necessary for space heating or for a hybrid heat pump, as it uses the gas boiler for hot water, it should be included here.
We might need to think about the storage costs as well then. I am not sure if it makes sense to include storage costs separately though. Since the investment costs cover the total cost for the heat pump already.
3 participants
Context
t.b.d.
Implemented changes
Node source analysis heat pumps
The following node source analysis have been updated. Most importantly the COPs and COP per degree. But other
values such costs are updated as well:
Residence source analysis nl2023: updated the number of HHP, ...
Residence analysis: the hardcoded HHP specs for space heating are updated, for hot water the input of network gas is set to 1.0 to match the COP cutoff of 6.0.
Related
Closes: https://github.com/quintel/etdataset/issues/1073
Partly addresses: https://github.com/quintel/etdataset/issues/900
Goes with: https://github.com/quintel/etdataset/pull/1104
To do