diff --git a/myems-api/excelexporters/spaceincome.py b/myems-api/excelexporters/spaceincome.py
new file mode 100644
index 00000000..11a4d31b
--- /dev/null
+++ b/myems-api/excelexporters/spaceincome.py
@@ -0,0 +1,599 @@
+import base64
+import uuid
+import os
+from openpyxl.chart import (
+    PieChart,
+    LineChart,
+    BarChart,
+    Reference,
+)
+from openpyxl.styles import PatternFill, Border, Side, Alignment, Font
+from openpyxl.drawing.image import Image
+from openpyxl import Workbook
+from openpyxl.chart.label import DataLabelList
+
+
+####################################################################################################################
+# PROCEDURES
+# Step 1: Validate the report data
+# Step 2: Generate excel file
+# Step 3: Encode the excel file bytes to Base64
+####################################################################################################################
+
+
+def export(report,
+           name,
+           reporting_start_datetime_local,
+           reporting_end_datetime_local,
+           period_type):
+    ####################################################################################################################
+    # Step 1: Validate the report data
+    ####################################################################################################################
+    if report is None:
+        return None
+    print(report)
+
+    ####################################################################################################################
+    # Step 2: Generate excel file from the report data
+    ####################################################################################################################
+    filename = generate_excel(report,
+                              name,
+                              reporting_start_datetime_local,
+                              reporting_end_datetime_local,
+                              period_type)
+    ####################################################################################################################
+    # Step 3: Encode the excel file to Base64
+    ####################################################################################################################
+    try:
+        with open(filename, 'rb') as binary_file:
+            binary_file_data = binary_file.read()
+    except IOError as ex:
+        pass
+
+    # Base64 encode the bytes
+    base64_encoded_data = base64.b64encode(binary_file_data)
+    # get the Base64 encoded data using human-readable characters.
+    base64_message = base64_encoded_data.decode('utf-8')
+    # delete the file from server
+    try:
+        os.remove(filename)
+    except NotImplementedError as ex:
+        pass
+    return base64_message
+
+
+def generate_excel(report,
+                   name,
+                   reporting_start_datetime_local,
+                   reporting_end_datetime_local,
+                   period_type):
+    wb = Workbook()
+    ws = wb.active
+
+    # Row height
+    ws.row_dimensions[1].height = 102
+    for i in range(2, 2000 + 1):
+        ws.row_dimensions[i].height = 42
+
+    # for i in range(2, 37 + 1):
+    #     ws.row_dimensions[i].height = 30
+    #
+    # for i in range(38, 69 + 1):
+    #     ws.row_dimensions[i].height = 30
+
+    # Col width
+    ws.column_dimensions['A'].width = 1.5
+
+    ws.column_dimensions['B'].width = 25.0
+
+    for i in range(ord('C'), ord('L')):
+        ws.column_dimensions[chr(i)].width = 15.0
+
+    # Font
+    name_font = Font(name='Constantia', size=15, bold=True)
+    title_font = Font(name='宋体', size=15, bold=True)
+    data_font = Font(name='Franklin Gothic Book', size=11)
+
+    table_fill = PatternFill(fill_type='solid', fgColor='1F497D')
+    f_border = Border(left=Side(border_style='medium', color='00000000'),
+                      right=Side(border_style='medium', color='00000000'),
+                      bottom=Side(border_style='medium', color='00000000'),
+                      top=Side(border_style='medium', color='00000000')
+                      )
+    b_border = Border(
+        bottom=Side(border_style='medium', color='00000000'),
+    )
+
+    b_c_alignment = Alignment(vertical='bottom',
+                              horizontal='center',
+                              text_rotation=0,
+                              wrap_text=True,
+                              shrink_to_fit=False,
+                              indent=0)
+    c_c_alignment = Alignment(vertical='center',
+                              horizontal='center',
+                              text_rotation=0,
+                              wrap_text=True,
+                              shrink_to_fit=False,
+                              indent=0)
+    b_r_alignment = Alignment(vertical='bottom',
+                              horizontal='right',
+                              text_rotation=0,
+                              wrap_text=True,
+                              shrink_to_fit=False,
+                              indent=0)
+    c_r_alignment = Alignment(vertical='bottom',
+                              horizontal='center',
+                              text_rotation=0,
+                              wrap_text=True,
+                              shrink_to_fit=False,
+                              indent=0)
+
+    # Img
+    img = Image("excelexporters/myems.png")
+    img.width = img.width * 0.85
+    img.height = img.height * 0.85
+    # img = Image("myems.png")
+    ws.add_image(img, 'B1')
+
+    # Title
+    ws.row_dimensions[3].height = 60
+
+    ws['B3'].font = name_font
+    ws['B3'].alignment = b_r_alignment
+    ws['B3'] = 'Name:'
+    ws['C3'].border = b_border
+    ws['C3'].alignment = b_c_alignment
+    ws['C3'].font = name_font
+    ws['C3'] = name
+
+    ws['D3'].font = name_font
+    ws['D3'].alignment = b_r_alignment
+    ws['D3'] = 'Period:'
+    ws['E3'].border = b_border
+    ws['E3'].alignment = b_c_alignment
+    ws['E3'].font = name_font
+    ws['E3'] = period_type
+
+    ws['F3'].font = name_font
+    ws['F3'].alignment = b_r_alignment
+    ws['F3'] = 'Date:'
+    ws['G3'].border = b_border
+    ws['G3'].alignment = b_c_alignment
+    ws['G3'].font = name_font
+    ws['G3'] = reporting_start_datetime_local + "__" + reporting_end_datetime_local
+    ws.merge_cells("G3:H3")
+
+    if "reporting_period" not in report.keys() or \
+            "names" not in report['reporting_period'].keys() or len(report['reporting_period']['names']) == 0:
+        filename = str(uuid.uuid4()) + '.xlsx'
+        wb.save(filename)
+
+        return filename
+
+    ##################################
+
+    reporting_period_data = report['reporting_period']
+
+    has_cost_data_flag = True
+
+    if "names" not in reporting_period_data.keys() or \
+            reporting_period_data['names'] is None or \
+            len(reporting_period_data['names']) == 0:
+        has_cost_data_flag = False
+
+    if has_cost_data_flag:
+        ws['B6'].font = title_font
+        ws['B6'] = name + ' 报告期收入'
+        category = reporting_period_data['names']
+        ca_len = len(category)
+
+        ws.row_dimensions[7].height = 60
+        ws['B7'].fill = table_fill
+        ws['B7'].border = f_border
+
+        ws['B8'].font = title_font
+        ws['B8'].alignment = c_c_alignment
+        ws['B8'] = '报告期收入总计'
+        ws['B8'].border = f_border
+
+        ws['B9'].font = title_font
+        ws['B9'].alignment = c_c_alignment
+        ws['B9'] = '单位面积值'
+        ws['B9'].border = f_border
+
+        ws['B10'].font = title_font
+        ws['B10'].alignment = c_c_alignment
+        ws['B10'] = '环比'
+        ws['B10'].border = f_border
+
+        col = ''
+
+        for i in range(0, ca_len):
+            col = chr(ord('C') + i)
+
+            ws[col + '7'].fill = table_fill
+            ws[col + '7'].font = name_font
+            ws[col + '7'].alignment = c_c_alignment
+            ws[col + '7'] = reporting_period_data['names'][i] + " (" + reporting_period_data['units'][i] + ")"
+            ws[col + '7'].border = f_border
+
+            ws[col + '8'].font = name_font
+            ws[col + '8'].alignment = c_c_alignment
+            ws[col + '8'] = round(reporting_period_data['subtotals'][i], 2)
+            ws[col + '8'].border = f_border
+
+            ws[col + '9'].font = name_font
+            ws[col + '9'].alignment = c_c_alignment
+            ws[col + '9'] = round(reporting_period_data['subtotals_per_unit_area'][i], 2)
+            ws[col + '9'].border = f_border
+
+            ws[col + '10'].font = name_font
+            ws[col + '10'].alignment = c_c_alignment
+            ws[col + '10'] = str(round(reporting_period_data['increment_rates'][i] * 100, 2)) + "%" \
+                if reporting_period_data['increment_rates'][i] is not None else "-"
+            ws[col + '10'].border = f_border
+
+        col = chr(ord(col) + 1)
+
+        ws[col + '7'].fill = table_fill
+        ws[col + '7'].font = name_font
+        ws[col + '7'].alignment = c_c_alignment
+        ws[col + '7'] = "总计 (" + reporting_period_data['total_unit'] + ")"
+        ws[col + '7'].border = f_border
+
+        ws[col + '8'].font = name_font
+        ws[col + '8'].alignment = c_c_alignment
+        ws[col + '8'] = round(reporting_period_data['total'], 2)
+        ws[col + '8'].border = f_border
+
+        ws[col + '9'].font = name_font
+        ws[col + '9'].alignment = c_c_alignment
+        ws[col + '9'] = round(reporting_period_data['total_per_unit_area'], 2)
+        ws[col + '9'].border = f_border
+
+        ws[col + '10'].font = name_font
+        ws[col + '10'].alignment = c_c_alignment
+        ws[col + '10'] = str(round(reporting_period_data['total_increment_rate'] * 100, 2)) + "%" \
+            if reporting_period_data['total_increment_rate'] is not None else "-"
+        ws[col + '10'].border = f_border
+
+    else:
+        for i in range(6, 10 + 1):
+            ws.row_dimensions[i].height = 0.1
+    ##################################
+    current_row_number = 12
+    has_subtotals_data_flag = True
+    if "subtotals" not in reporting_period_data.keys() or \
+            reporting_period_data['subtotals'] is None or \
+            len(reporting_period_data['subtotals']) == 0:
+        has_subtotals_data_flag = False
+
+    if has_subtotals_data_flag:
+        ws['B' + str(current_row_number)].font = title_font
+        ws['B' + str(current_row_number)] = name + ' 收入占比'
+
+        current_row_number += 1
+
+        table_start_row_number = current_row_number
+
+        ws['B' + str(current_row_number)].fill = table_fill
+        ws['B' + str(current_row_number)].font = name_font
+        ws['B' + str(current_row_number)].alignment = c_c_alignment
+        ws['B' + str(current_row_number)].border = f_border
+
+        ws['C' + str(current_row_number)].fill = table_fill
+        ws['C' + str(current_row_number)].font = name_font
+        ws['C' + str(current_row_number)].alignment = c_c_alignment
+        ws['C' + str(current_row_number)].border = f_border
+        ws['C' + str(current_row_number)] = '收入'
+
+        ws['D' + str(current_row_number)].fill = table_fill
+        ws['D' + str(current_row_number)].font = name_font
+        ws['D' + str(current_row_number)].alignment = c_c_alignment
+        ws['D' + str(current_row_number)].border = f_border
+        ws['D' + str(current_row_number)] = '收入占比'
+
+        current_row_number += 1
+
+        ca_len = len(reporting_period_data['names'])
+        wssum = 0
+        for i in range(0, ca_len):
+            wssum = round(reporting_period_data['subtotals'][i], 2) + wssum
+        for i in range(0, ca_len):
+            ws['B' + str(current_row_number)].font = title_font
+            ws['B' + str(current_row_number)].alignment = c_c_alignment
+            ws['B' + str(current_row_number)] = reporting_period_data['names'][i]
+            ws['B' + str(current_row_number)].border = f_border
+
+            ws['C' + str(current_row_number)].font = title_font
+            ws['C' + str(current_row_number)].alignment = c_c_alignment
+            ws['C' + str(current_row_number)].border = f_border
+            ws['C' + str(current_row_number)] = round(reporting_period_data['subtotals'][i], 2)
+
+            ws['D' + str(current_row_number)].font = title_font
+            ws['D' + str(current_row_number)].alignment = c_c_alignment
+            ws['D' + str(current_row_number)].border = f_border
+            ws['D' + str(current_row_number)] = '{:.2%}'.format(round(reporting_period_data['subtotals'][i], 2) / wssum)
+
+            current_row_number += 1
+
+        table_end_row_number = current_row_number - 1
+
+        pie = PieChart()
+        pie.title = name + ' 收入占比'
+        labels = Reference(ws, min_col=2, min_row=table_start_row_number + 1, max_row=table_end_row_number)
+        pie_data = Reference(ws, min_col=3, min_row=table_start_row_number, max_row=table_end_row_number)
+        pie.add_data(pie_data, titles_from_data=True)
+        pie.set_categories(labels)
+        pie.height = 6.6
+        pie.width = 9
+        s1 = pie.series[0]
+        s1.dLbls = DataLabelList()
+        s1.dLbls.showCatName = False
+        s1.dLbls.showVal = True
+        s1.dLbls.showPercent = True
+        table_cell = 'E' + str(table_start_row_number)
+        ws.add_chart(pie, table_cell)
+
+        if ca_len < 4:
+            current_row_number = current_row_number - ca_len + 4
+
+    else:
+        for i in range(21, 29 + 1):
+            current_row_number = 30
+            ws.row_dimensions[i].height = 0.1
+
+    ##################################
+    current_row_number = 20
+
+    has_child_flag = True
+
+    if "child_space" not in report.keys() or "energy_category_names" not in report['child_space'].keys() or \
+            len(report['child_space']["energy_category_names"]) == 0 \
+            or 'child_space_names_array' not in report['child_space'].keys() \
+            or report['child_space']['energy_category_names'] is None \
+            or len(report['child_space']['child_space_names_array']) == 0 \
+            or len(report['child_space']['child_space_names_array'][0]) == 0:
+        has_child_flag = False
+
+    if has_child_flag:
+        child = report['child_space']
+
+        ws['B' + str(current_row_number)].font = title_font
+        ws['B' + str(current_row_number)] = name + ' 子空间数据'
+
+        current_row_number += 1
+        table_start_row_number = current_row_number
+
+        ws.row_dimensions[current_row_number].height = 60
+        ws['B' + str(current_row_number)].fill = table_fill
+        ws['B' + str(current_row_number)].border = f_border
+        ca_len = len(child['energy_category_names'])
+
+        col = ''
+
+        for i in range(0, ca_len):
+            col = chr(ord('C') + i)
+            ws[col + str(current_row_number)].fill = table_fill
+            ws[col + str(current_row_number)].font = title_font
+            ws[col + str(current_row_number)].alignment = c_c_alignment
+            ws[col + str(current_row_number)].border = f_border
+            ws[col + str(current_row_number)] = child['energy_category_names'][i] + ' (' + child['units'][i] + ')'
+
+        col = chr(ord(col) + 1)
+        ws[col + str(current_row_number)].fill = table_fill
+        ws[col + str(current_row_number)].font = title_font
+        ws[col + str(current_row_number)].alignment = c_c_alignment
+        ws[col + str(current_row_number)].border = f_border
+        ws[col + str(current_row_number)] = '总计 (' + report['reporting_period']['total_unit'] + ')'
+
+        space_len = len(child['child_space_names_array'][0])
+
+        for i in range(0, space_len):
+            current_row_number += 1
+            row = str(current_row_number)
+
+            ws['B' + row].font = name_font
+            ws['B' + row].alignment = c_c_alignment
+            ws['B' + row] = child['child_space_names_array'][0][i]
+            ws['B' + row].border = f_border
+
+            col = ''
+            every_day_sum = 0
+
+            for j in range(0, ca_len):
+                col = chr(ord('C') + j)
+                ws[col + row].font = name_font
+                ws[col + row].alignment = c_c_alignment
+                every_day_sum += child['subtotals_array'][j][i]
+                ws[col + row] = round(child['subtotals_array'][j][i], 2)
+                ws[col + row].border = f_border
+
+            col = chr(ord(col) + 1)
+            ws[col + row].font = name_font
+            ws[col + row].alignment = c_c_alignment
+            ws[col + row] = round(every_day_sum, 2)
+            ws[col + row].border = f_border
+
+        table_end_row_number = current_row_number
+        current_row_number += 1
+        chart_start_row_number = current_row_number
+
+        # Pie
+        for i in range(0, ca_len):
+            pie = PieChart()
+            labels = Reference(ws, min_col=2, min_row=table_start_row_number + 1, max_row=table_end_row_number)
+            pie_data = Reference(ws, min_col=3 + i, min_row=table_start_row_number,
+                                 max_row=table_end_row_number)
+            pie.add_data(pie_data, titles_from_data=True)
+            pie.set_categories(labels)
+            pie.height = 6.6
+            pie.width = 8
+            pie.title = ws.cell(column=3+i, row=table_start_row_number).value
+            s1 = pie.series[0]
+            s1.dLbls = DataLabelList()
+            s1.dLbls.showCatName = False
+            s1.dLbls.showVal = True
+            s1.dLbls.showPercent = True
+            chart_cell = ''
+            if i % 2 == 0:
+                chart_cell = 'B' + str(chart_start_row_number)
+            else:
+                chart_cell = 'E' + str(chart_start_row_number)
+                chart_start_row_number += 5
+            ws.add_chart(pie, chart_cell)
+
+            # chart_col = chr(ord('B') + 2 * i)
+            # chart_cell = chart_col + str(current_row_number)
+            # ws.add_chart(pie, chart_cell)
+        current_row_number = chart_start_row_number
+
+        if ca_len % 2 == 1:
+            current_row_number += 5
+
+    # else:
+    #     for i in range(19, 36 + 1):
+    #         current_row_number = 36
+    #         ws.row_dimensions[i].height = 0.1
+
+    current_row_number += 1
+
+    #############################################
+    reporting_period_data = report['reporting_period']
+    times = reporting_period_data['timestamps']
+    has_detail_data_flag = True
+    ca_len = len(report['reporting_period']['names'])
+    table_row = (current_row_number + 1) + ca_len * 6
+    if "timestamps" not in reporting_period_data.keys() or \
+            reporting_period_data['timestamps'] is None or \
+            len(reporting_period_data['timestamps']) == 0:
+        has_detail_data_flag = False
+
+    if has_detail_data_flag:
+        ws['B' + str(current_row_number)].font = title_font
+        ws['B' + str(current_row_number)] = name + ' 详细数据'
+
+        ws.row_dimensions[table_row].height = 60
+        ws['B' + str(table_row)].fill = table_fill
+        ws['B' + str(table_row)].font = title_font
+        ws['B' + str(table_row)].border = f_border
+        ws['B' + str(table_row)].alignment = c_c_alignment
+        ws['B' + str(table_row)] = '日期时间'
+        time = times[0]
+        has_data = False
+        max_row = 0
+        if len(time) > 0:
+            has_data = True
+            max_row = table_row + len(time)
+
+        if has_data:
+            for i in range(0, len(time)):
+                col = 'B'
+                row = str(table_row + 1 + i)
+                ws[col + row].font = title_font
+                ws[col + row].alignment = c_c_alignment
+                ws[col + row] = time[i]
+                ws[col + row].border = f_border
+
+            for i in range(0, ca_len):
+
+                col = chr(ord('C') + i)
+
+                ws[col + str(table_row)].fill = table_fill
+                ws[col + str(table_row)].font = title_font
+                ws[col + str(table_row)].alignment = c_c_alignment
+                ws[col + str(table_row)] = reporting_period_data['names'][i] + " (" + reporting_period_data['units'][
+                    i] + ")"
+                ws[col + str(table_row)].border = f_border
+
+                # 39 data
+                time = times[i]
+                time_len = len(time)
+
+                for j in range(0, time_len):
+                    row = str(table_row + 1 + j)
+                    ws[col + row].font = title_font
+                    ws[col + row].alignment = c_c_alignment
+                    ws[col + row] = round(reporting_period_data['values'][i][j], 2)
+                    ws[col + row].border = f_border
+
+                line = LineChart()
+                line.title = \
+                    '报告期收入 - ' + reporting_period_data['names'][i] + " (" + reporting_period_data['units'][i] + ")"
+                labels = Reference(ws, min_col=2, min_row=table_row + 1, max_row=max_row)
+                line_data = Reference(ws, min_col=3 + i, min_row=table_row, max_row=max_row)
+                line.add_data(line_data, titles_from_data=True)
+                line.set_categories(labels)
+                line_data = line.series[0]
+                line_data.marker.symbol = "circle"
+                line_data.smooth = True
+                line.x_axis.crosses = 'min'
+                line.height = 8.25
+                line.width = 24
+                line.dLbls = DataLabelList()
+                line.dLbls.dLblPos = 't'
+                line.dLbls.showVal = True
+                line.dLbls.showPercent = False
+                chart_col = 'B'
+                chart_cell = chart_col + str(current_row_number + 1 + 6 * i)
+                ws.add_chart(line, chart_cell)
+
+            row = str(max_row + 1)
+
+            ws['B' + row].font = title_font
+            ws['B' + row].alignment = c_c_alignment
+            ws['B' + row] = '小计'
+            ws['B' + row].border = f_border
+
+            col = ''
+
+            for i in range(0, ca_len):
+                col = chr(ord('C') + i)
+                row = str(max_row + 1)
+                ws[col + row].font = title_font
+                ws[col + row].alignment = c_c_alignment
+                ws[col + row] = round(reporting_period_data['subtotals'][i], 2)
+                ws[col + row].border = f_border
+
+            col = chr(ord(col) + 1)
+
+            ws[col + str(table_row)].fill = table_fill
+            ws[col + str(table_row)].font = title_font
+            ws[col + str(table_row)].alignment = c_c_alignment
+            ws[col + str(table_row)] = '总计 (' + report['reporting_period']['total_unit'] + ')'
+            ws[col + str(table_row)].border = f_border
+
+            total_sum = 0
+
+            for j in range(0, len(time)):
+                row = str(table_row + 1 + j)
+                ws[col + row].font = title_font
+                ws[col + row].alignment = c_c_alignment
+                every_day_sum = reporting_period_values_every_day_sum(reporting_period_data, j, ca_len)
+                total_sum += every_day_sum
+                ws[col + row] = round(every_day_sum, 2)
+                ws[col + row].border = f_border
+
+            row = str(table_row + 1 + len(time))
+            ws[col + row].font = title_font
+            ws[col + row].alignment = c_c_alignment
+            ws[col + row] = round(total_sum, 2)
+            ws[col + row].border = f_border
+
+    else:
+        for i in range(37, 69 + 1):
+            ws.row_dimensions[i].height = 0.1
+
+    filename = str(uuid.uuid4()) + '.xlsx'
+    wb.save(filename)
+
+    return filename
+
+
+def reporting_period_values_every_day_sum(reporting_period_data, every_day_index, ca_len):
+    every_day_sum = 0
+    for i in range(0, ca_len):
+        every_day_sum += reporting_period_data['values'][i][every_day_index]
+
+    return every_day_sum
diff --git a/myems-api/reports/spaceincome.py b/myems-api/reports/spaceincome.py
index 35b43d00..979c6ea0 100644
--- a/myems-api/reports/spaceincome.py
+++ b/myems-api/reports/spaceincome.py
@@ -5,6 +5,7 @@ import config
 from datetime import datetime, timedelta, timezone
 from core import utilities
 from decimal import Decimal
+import excelexporters.spaceincome
 
 
 class Reporting:
@@ -561,4 +562,10 @@ class Reporting:
                 result['child_space']['subtotals_array'].append(
                     child_space_data[energy_category_id]['subtotals'])
 
+                # export result to Excel file and then encode the file to base64 string
+                result['excel_bytes_base64'] = excelexporters.spaceincome.export(result,
+                                                                                 space['name'],
+                                                                                 reporting_start_datetime_local,
+                                                                                 reporting_end_datetime_local,
+                                                                                 period_type)
         resp.body = json.dumps(result)