-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathabout.html
executable file
·127 lines (112 loc) · 4.86 KB
/
about.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
<html>
<head>
<link href='main.css' rel='stylesheet' type='text/css' />
<title>
About: Estimated Total Annual Building Energy Consumption for New York City at the Block and Lot Level for NYC
</title>
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
</head>
<body>
<div id="content-wrap">
<h1>Estimated Total Annual Building Energy Consumption at the Block and Lot Level for NYC</h1>
<div class="nav"> About |
<a href="index.html">Map</a>
</div>
<a class="about_img" href="http://sel.columbia.edu/nycenergy"></a>
<basefont face="Trebuchet MS">
<p>
Thank you for visiting the <b>New York City Building Energy Map!</b> The
map provides an estimate of the building energy consumption ("delivered"
energy as opposed to "primary" energy) throughout New York City. The
estimate is specific to the weather of New York, specific to the particular
function of the building and specific to the built-up area of the building.
This page describes how energy usage was estimated. This site was developed
as part of a NSF IGERT funded research project in the School of Engineering
and Applied Science at Columbia University
</p>
<p>
The annual building energy consumption was estimated using ZIP code-level
energy usage, on electricity, natural gas, fuel oil and steam consumption
for the year 2009 as well as building information obtained from MapPLUTO
(a NYC Department of City Planning geographic database). With these two
data sources through statistical regression we were able to estimate annual
energy usage intensities (see the link to the study below the map for more
detailed methodology). Energy usage intensity (EUI), is annual energy
consumption divided by the total building floor area. These are "delivered"
energy intensities and not "primary" energy intensities. This distinction
is critical since "primary" energy utilized to produce electricity can vary
with the type of power plant.
</p>
<p>These intensities were specific to the following building functions:</p>
<p>
<ul>
<li>Residential, 1-4 family</li>
<li>Residential, multi-family </li>
<li>Education</li>
<li>Health</li>
<li>Warehouse</li>
<li>Office</li>
<li>Store</li>
</ul>
</p>
<p>
In addition, Residential multi-family estimates for Manhattan and Bronx are
specific to those boroughs. Office estimates for Manhattan are specific
only to Manhattan.
</p>
<p>
Energy intensities were first estimated for electricity and for all fuels
(including steam supply). We used the data from the residential energy
consumption survey (RECS) and the commercial building energy consumption
survey (CBECS) to break the energy use down into specific end uses:
<ul>
<li>Space heating</li>
<li>Space cooling</li>
<li>Water heating</li>
<li>Base electric applications (lighting and plug loads).</li>
</ul>
</p>
<p>
Note: It was assumed that cooling is provided from electricity and all
heating is provided from fuels or steam.
The "tax lot" level estimates were for each of these end uses and for each
building function listed above.
The map displays no data for building areas not classified in the referenced
databases.
The figure below shows the EUI estimates by building type:<br/>
<img src="Slide09.gif" height="400px"></img>
</p>
<p>
Finally, for visualization purposes only, the energy use was normalized by
the tax lot land area.
The tax lot level caption also provides the built-up area of the buildings
on the tax lot.
So one can also easily compute the energy use based on the built-up area if
one needs that estimate.
</p>
<h4>What Is The Map?</h4>
<p>
The map provides an estimate of building energy consumption. Take a typical
building on an avenue in Manhattan. Often, the first floor is used for a
store and theremaining floor area is office or residential. Our map shows
that, if this building has 10,000 square meters of floor area, the first
floor is used for stores and the rest is used for residential. On average,
this building consumes 3.2 million kWh.
</p>
<h4>Does The Map Show the Actual Energy Usage of My Building?</h4>
<p>
The map is not based on building-specific data. The map does not represent
buildings that may be more or less efficient than others. An efficient
building may use less than portrayed on the map and a less efficient
building may use more. We encourage users to compare their buildings, but
keep in mind that many factors affect a building's energy usage.
</p>
<p id="credits">
<i>
Map created by the <a href="http://sel.columbia.edu">Sustainable
Engineering Lab (formerly Modi Research Group)</a> using
<a href="http://mapbox.com">MapBox</a>
</i>
</p>
</body>
</html>