Copyright 2017 Integrated Environmental Solutions Limited. All rights reserved.

Transcription

1 Tariff Analysis IES Virtual Environment Copyright 2017 Integrated Environmental Solutions Limited. All rights reserved. No part of the manual is to be copied or reproduced in any form without the express agreement of Integrated Environmental Solutions Limited.

2 VE 2017 Tariff Analysis 2

3 Table of Contents 1. Introduction Tariff analysis overview Menus File menu Energy sources menu Utility suppliers Site supply Currencies Tariff data Coal Tariffs Tiers and charges Seasonal pricing factors Taxes and discounts Electricity Tariffs Demand charges Capacity and standing charges Taxes and discounts Annual planner Gas Tariffs Tiers and charges Seasonal pricing factors Taxes and discounts Oil Tariffs Tiers and charges Seasonal pricing factors Taxes and discounts Taxes and discounts Energy consumption data Cost data Analysis type Simple / Flat rate VE 2017 Tariff Analysis 3

4 US flat rates Advance / Variable rate Currency Cost analysis Utilities Renewables On-site electricity generation Supplier Tariff Flat rate Tariff units Cost of proposed Cost of baseline BPRM reports Fossil fuel type ***end of document *** Introduction Tariff Analysis tool is used to convert the results in energy units from ApacheSim into monetary units. The tool allows the user to create real tariffs, which can be saved and shared with other projects, to perform a cost analysis study and easily visualize the improvements from selecting different tariffs. PRM is based on a comparison of total cost of the proposed and baseline buildings: PRM documentation: ASHRAE 90.1 Appendix G2.4 Energy Rates: Annual energy cost shall be determined using either actual rates for purchased energy or state average energy prices. Tariff Analysis tool would allow the user to create advance tariffs that replicate the actual rates or to create simple tariffs to input the state average energy price. 2. Tariff analysis overview Image 1 shows the tariffs analysis main window. From this window users can select the tariffs, import the APS file from VistaPro and get the analysis results, including the final cost for each utility for the tariff being used. VE 2017 Tariff Analysis 4

5 2.1. Menus Image 1. Tariffs analysis main window Three menus are available: File, Energy sources and Tariff data File menu File related options can be found here, being: - Export tariffs: currencies, suppliers, taxes and discounts, USA flat rates and utilities tariffs will be exported in a single file, by default, to folder C:\Users\username\AppData\Local\IES\Tariffs - Import tariffs: a valid exported tariffs file can be imported replacing all the existing data. Old engine files can be imported too. - Set tariffs as default: current data, such as tariffs, suppliers can be set as default for new projects. - Generate report: if Microsoft Word is installed in the system, a report can be generated through the menu and saved in the project Vista folder. It contains a summary, for every utility, of the energy demand and cost, both for the proposed and baseline profiles. VE 2017 Tariff Analysis 5

6 - Close: closes the tariffs analysis window Energy sources menu Utility suppliers This window allows the user to manage the suppliers for any utility and at least one supplier is needed in order to create tariffs. Name, Code (specific number of each supplier), Address and ZIP/Post code are editable cells and their information will appear in the report. A supplier containing United States or U.S.A in the address is considered to be located in the United States of America. Image 2. Utility suppliers window Utility can only be selected when creating the supplier and then it will be disabled. It is shown in a drop-down list with four options: VE 2017 Tariff Analysis 6

7 It will act as a filter when creating the tariffs. Suppliers are specific for only one utility type, therefore, for example, only the suppliers specified as electricity can be selected when creating a new electricity tariff Site supply When clicked, the site energy supply window will pop up. Image 3. Site energy supply window All these fields are only for display purposes with the exception of Default power factor and Site maximum power demand, used for computing. Default power factor is the real power ratio to the apparent power. The values range is between 0 and 1 and the default value is The real power is the circuit capacity for performing work at a certain time (kw). The apparent power is the product of the current one and the circuit voltage and is measured in kilo volt-amperes (kva). kw = kva * PF Site maximum power demand is used when the profile is not accurate enough to include the real peaks of demand for the site. This value will be used as a constant value of peak demand for the electricity tariffs that are based on the peak of maximum demand such as Maximum Demand and Availability Charge. Every period of time shall use the same maximum demand. VE 2017 Tariff Analysis 7

8 file. Use peak from profile allows analysis to be performed using directly the values from the aps Currencies About 170 currencies around the world are included by default. However, it s possible to create new ones. Image 4. Currencies window The Set as default button will establish current currencies to be default for new projects. VE 2017 Tariff Analysis 8

9 Tariff data Utilities tariffs and taxes/discounts can be managed from this menu Coal Coal tariffs management can be achieved through four pages Tariffs Image 5. Tariffs page VE 2017 Tariff Analysis 9

10 Suppliers and their tariffs are shown in the coal tariffs page. New tariffs can be created for the selected supplier and modified when necessary. For those suppliers located in the United States, short tons will be suggested for the units. However, any can be selected at a later time Tiers and charges This page will display the tiers and demand charges the selected tariff has. Any number of blocks can be created with its rate and demand charge. The range covered by each is shown in column Range Seasonal pricing factors Image 6. Tiers and charges page Every month s energy demand cost will be multiplied by its seasonal pricing factor. VE 2017 Tariff Analysis 10

11 Taxes and discounts Image 7. Seasonal pricing factors page Applicable taxes and discounts to coal tariffs will be listed on the left. Those applied to the selected tariff will on the right. Image 8. Taxes and discounts page VE 2017 Tariff Analysis 11

12 Electricity Electricity tariffs management can be achieved through four pages and the annual planner Tariffs Suppliers and their tariffs are shown in the electricity tariffs page. New tariffs can be created for the selected supplier and modified when necessary. The charge type defines how the cost is computed, with three possible options: - Basic: only standing charges, defined in the charges page, and unit charges ( Annual planner button) are taken into account for computing. - Seasonal time of day: by selecting this option, the charges page will be enabled. Capacity charge is used to compute and added to the basic computing. - Maximum demand: under this option, regimes and charges pages will be enabled. Demand charges defined in the charges page are added to the seasonal time of day computing. VE 2017 Tariff Analysis 12

13 Demand charges Image 9. Tariffs page Regimes and periods can be managed through this page, available only for tariffs whose type is maximum demand. VE 2017 Tariff Analysis 13

14 Image 10. Regimes page A regime accepts a name and the months it will be applied to as long as the whole year is covered. Otherwise, a message will pop up. A period can hold any number of tiers, each with the rate to apply for every regime. VE 2017 Tariff Analysis 14

15 Capacity and standing charges Both standing and capacity charges, with any number of tiers, can be created in this page, available only for tariffs whose type is seasonal time of day or maximum demand. Standing charges calculation For monthly basis, the standing charges are the standing charge. For daily basis, the standing charges are the standing charge multiplied by the number of days of the month to compute. Capacity charges calculation If kva selected, the Power Factor is used to convert to kw (kw = kva * PF). For every month, the maximum demand value will be used to compute unless the Use peak from profile checkbox in the site window is not ticked in which case the Site maximum power demand value will be used. In either case, those units are computed with the blocks Taxes and discounts Image 11. Charges page VE 2017 Tariff Analysis 15

16 Applicable taxes and discounts to electricity tariffs will be listed on the left. Those applied to the selected tariff will on the right Annual planner Image 12. Taxes and discounts The annual planner can be accessed through the button with the same name in the electricity main window and allows to configure the way the energy demand cost will be computed. VE 2017 Tariff Analysis 16

17 Image 13. Annual planner window Available daily rates will be shown in the bottom half window and can be created and deleted just by clicking the appropriate button. At any time, a daily rate name can be changed by double clicking on it and its colour with the ellipsis button. Image 14. Daily rates The rates the selected daily rate has are displayed in a drop down list on the bottom right area as shown in image 15. They can be modified or deleted except the standard one. VE 2017 Tariff Analysis 17

18 Image 15. Rates Timing rates assignment is shown in the daily rate row, covering the whole day, from 00:00 to 24:00 hours. In order to create a band, select the desired rate and click on the Create band button. Hover over the daily rate row and click again for the starting point. Another click will complete the band creation. Any band, except the standard one, can be stretched or moved very easily with the mouse. Both time limits can be modified also by typing the hour or minutes in the fields below the rows. When computing, the lower limit is included in the time interval but the upper one is not. Image 16. Band being stretched The selected band can be deleted just by clicking the Delete band button or by pressing the delete key. The year stored in the APS file is shown in the calendar with the daily rates assignment for each day. VE 2017 Tariff Analysis 18

19 Image 17. Calendar One click on a single day with the left mouse button will assign the selected daily rate to that day. Columns and whole months can be assigned by clicking on the corresponding header letter or month label. Clicking and dragging with the mouse will assign several dates. Performing those actions with the right mouse button will leave the targeted days with no daily rate assigned. There are two arrows for easy navigation through the calendars. Any electricity tariff should have the daily rates assigned in all of them. File menu can be used for saving the modifications carried out Gas Gas tariffs management can be achieved through four pages Tariffs VE 2017 Tariff Analysis 19

20 Image 18. Tariffs page Suppliers and their tariffs are shown in the gas tariffs page. New tariffs can be created for the selected supplier and modified when necessary. For those suppliers located in the United States, therms will be suggested for the units. However, any can be selected at a later time Tiers and charges This page will display the tiers and demand charges the selected tariff has. Any number of blocks can be created with its rate and demand charge. The range covered by each is shown in column Range. VE 2017 Tariff Analysis 20

21 Seasonal pricing factors Image 19. Tiers and charges page Every month s energy demand cost will be multiplied by its seasonal pricing factor. VE 2017 Tariff Analysis 21

22 Taxes and discounts Image 20. Seasonal pricing factors page Applicable taxes and discounts to gas tariffs will be listed on the left. Those applied to the selected tariff will on the right. Image 21. Taxes and discounts page VE 2017 Tariff Analysis 22

23 Oil Tariffs Oil tariffs management can be achieved through four pages. Suppliers and their tariffs are shown in the oil tariffs page. New tariffs can be created for the selected supplier and modified when necessary. For those suppliers located in the United States, US gallons will be suggested for the units. However, any can be selected at a later time Tiers and charges Image 22. Tariffs page This page will display the tiers and demand charges the selected tariff has. Any number of blocks can be created with its rate and demand charge. The range covered by each is shown in column Range. VE 2017 Tariff Analysis 23

24 Seasonal pricing factors Image 23. Tiers and charges page Every month s energy demand cost will be multiplied by its seasonal pricing factor. Image 24. Seasonal pricing factors page VE 2017 Tariff Analysis 24

25 Taxes and discounts Applicable taxes and discounts to oil tariffs will be listed on the left. Those applied to the selected tariff will on the right. Image 25. Taxes and discounts page Taxes and discounts Taxes and discounts are used in the last computing stage and can be managed through this window. In order to create a tax or discount, click on the Create button, select the type, a name, the rate and the utilities it will be applied to. There are three scopes available: - Tariffs: the tax or discount will be applied only to the selected tariffs, displayed highlighted. Users can press Shift or Ctrl keys for multi selection. - Suppliers: the tax or discount will be applied only to the selected suppliers. - Utilities: the tax or discount will be applied only to the ticked utilities. VE 2017 Tariff Analysis 25

26 Image 26. Taxes and discounts window 2.2. Energy consumption data This area defines where the energy will be read from, with three options: - Energy dataset option has the building regulation to use being one of these: - ASHRAE 90.1: with a proposed aps file beginning by p_, up to four files will automatically be used in the baseline for analysis, being b[000]_..., b[090]_..., b[180]_... and b[270]_... - Generic: up to one file can manually be added to the baseline through the Browse button. - UK Part L2: with an actual aps file beginning by a_, notional (n_...) and reference (r_...) files will be looked for. - Proposed results dataset allows the user to browse and pick the aps file to analyse. The Browse button opens by default the vista folder of the project in use. VE 2017 Tariff Analysis 26

27 - Comparison results dataset allows the user to compare two aps files with the same tariffs. The Browse button opens the same vista folder of the project in use. If the tariff analysis is open from VE compliance, the default APS file would be the one analysed in the simulation Cost data Image 27. Energy consumption data Analysis type Image 28. Cost data There are two main possibilities of tariff analysis types: simple and advanced Simple / Flat rate This option limits the user to input tariff s information only for flat rates setting the units to the following, depending on the currency: - Electricity: kwh - Gas: o For US currencies: therms (thm) o For rest of the world: kwh VE 2017 Tariff Analysis 27

28 - Oil: o For US currencies: gallons (gal) o For rest of the world: litres (l) - Coal: o For US currencies: Short tons (ST) o For rest of the world: Metric tons (MT) - Miscellaneous: kwh - Renewables: kwh If selected with the United States dollar currency, US flat rates button will be enabled US flat rates. This window has the rates for all of the utilities by state (light blue rows) and census division (light grey). Rates belonging to a state can be updated and the new average rate will be shown in the census division that state belongs to. Image 29. US flat rates Clicking the OK button will accept the changes and copy the average rates of the selected rows, if any, to the main window. Clicking Cancel will discard any modification. The Set as default button will make current rates to be default for future projects. VE 2017 Tariff Analysis 28

29 Image 30. US flat rates default question Advance / Variable rate This will provide full access to the Tariff Analysis. The user can create tariffs and combine them to create a realistic scenario of the total cost of running the building. This option also allows the user to incorporate flat rates in combination with the tariffs created. Renewables can only be sold using a flat rate Currency Currency used for costs results working as a filter for the tariffs that were created with that currency. Only the tariffs using the selected one will be displayed in the Cost analysis tariff column Cost analysis Image 31. Cost analysis VE 2017 Tariff Analysis 29

30 Utilities Currently, six types of utilities can be analysed: - Electricity - Gas - Oil - Coal - Miscellaneous 1 - Renewable 2 Each option allows performing the analysis to only one tariff per utility at a time. The correlation between the generator fuel for the space conditioning (heating or cooling systems), lights, cooking utilities, machinery, miscellaneous and other loads in <VE> with the tariff analysis utilities: Fuel in <VE> Tariff analysis Natural gas Gas LPG Gas Biogas Gas Oil Oil Coal Coal Anthracite Coal Smokeless fuel (inc. coke) Coal Dual fuel (mineral + wood) Coal (solid fuel) Biomass (not renewable) Coal (solid fuel) Need modification 1 Miscellaneous would display all the suppliers created in the four other utilities and, therefore, all the tariffs of these suppliers created with the selected currency. 2 Only flat rates are allowed for reselling electricity to the grid. VE 2017 Tariff Analysis 30

31 Biomass (renewable) Need modification Electricity Electricity Waste heat Need modification Misc. A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y & Z Miscellaneous Renewables Already embedded in simulation Renewables The excess of electricity generation that is not consumed on-site, calculated for each hour where the electricity generated is higher than the electricity consumed, can be sold to the grid at a price stated by the renewable flat rate. It takes into account all the renewable energy technologies that generate electricity: Photovoltaic panels, wind generators, solar water heating and combined heat and power On-site electricity generation The renewable options included in VE for electricity generation are: Photovoltaic panels, wind generators, solar water heating and combined heat and power, in VistaPro, summarized in Total grid displaced electricity. These options allow the user to get real savings on electricity generation on an hourly basis. This also allows the system to determine the hours when the electricity generated is greater than the electricity consumed by the building, therefore that excess can be sold to the grid at a flat rate Supplier For each utility, the suppliers assigned to it will be shown in a drop down list. The selected supplier will be used to compute Tariff This column shows drop down lists containing the tariffs created and assigned to the selected supplier having the chosen currency. A flat rate option is always available for any utility and supplier. VE 2017 Tariff Analysis 31

32 Flat rate When Simple/Flat rate is ticked, flat rates fields are enabled. Any rate shown here will be used to compute. For renewable energies is always available Tariff units The units costs are expressed in will be labelled here Cost of proposed Cost of proposed shows the total cost and individual cost for each utility of running the proposed building based on the tariffs selected Cost of baseline If a profile has been included as a comparison profile, it will show the total and individual costs for each utility based on the tariffs selected. In this case, the % improvement will display the percentage of improvement between the benchmark and the proposed designs. VE 2017 Tariff Analysis 32

33 3. BPRM reports Any ASHRAE 90.1 navigator will provide the user with a Results section allowing the generation of BPRM reports. Image 32. BPRM reports. By clicking any of them, a window will pop up with the proposed files available, after which the report will be generated with the baseline files found. VE 2017 Tariff Analysis 33

34 Image 33. BPRM report (b) 4. Fossil fuel type Any ASHRAE 90.1 navigator will provide the user with a Fossil Fuel Type allowing to specify the fuel used for several services and will be taken into account when computing the energy demand. Image 34. Fossil fuel types option. VE 2017 Tariff Analysis 34

35 Image 35. Fossil fuel types window. 5. ***end of document *** VE 2017 Tariff Analysis 35