Resolve "Replace Data_Investment_new.xlsx with official reference data set"

Closes #12

case_economic_assessment/README.md

+# Case for econmic assessment of LEC and FCS as active measures
+Runscript and case-specific data for the case study presented in manuscript: 
+R. Rana, I. B. Sperstad, B. N. Torsæter, and H. Taxt, “Economic
+assessment of integrating fast-charging stations and energy communities
+in grid planning,” (under peer review; pre-print version available at
+TechRxiv), 2022. doi:https://doi.org/10.36227/techrxiv.21371817.v1.
+
+## Overview
+
+### runscript_present_value.py:
+Runscript for economic assessment of LECs and/or FCSs as active measures in grid planning, 
+calculating total accumulated costs and the present value of the costs
+
+### runscript_willingness_to_pay.py:
+Runscript for calculating willingness to pay for use of active measures
+
+# Authors
+Contributors: Rubi Rana, Iver Bakken Sperstad
+
+## Funding
+This work was supported by the project consortiums of the research projects Fine ("Flexible Integration of Local Energy Communities into the Norwegian Electricity Distribution System") and FuChar ("Grid and Charging Infrastructure of the Future") funded by the Research Council of Norway under Grant 308833 and Grant 295133, respectively. This work is also funded by CINELDI - Centre for intelligent electricity distribution, an 8 year Research Centre under the FME-scheme (Centre for Environment-friendly Energy Research, 257626/E20). The authors gratefully acknowledge the financial support from the Research Council of Norway and the CINELDI partners.
+
+Copyright © 2022 SINTEF Energi AS
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