Abstract

Midland, Texas is one of the fastest-growing urban population centers in the country and has one of the lowest costs of electricity. This study aims to assess the potential of a grid-connected carbon-neutral community in an oil-rich city using energy efficiency measures and hybrid distributed generation (DG) systems. The community consists mostly of residential buildings including detached homes and apartment buildings. Moreover, a cost-optimization analysis of various DG technologies is carried out to meet both electrical and thermal loads of the community in Midland. The energy efficiency measures are selected for two main objectives: (i) reduce the total energy needs and (ii) electrify most of the buildings within the community. Improvement of heating, ventilating, and air conditioning systems and their controls are the main energy efficiency measures considered for all the buildings part of the community. DG systems are constrained by the renewable energy resources identified to be prevalent within the site of the community. It is found that photovoltaic (PV) systems are the most cost-effective, while wind and combined heat and power (CHP) would not be competitive compared to the current grid energy prices. Specifically, the optimization results indicate that PV, when implemented on a large scale, can provide adequate power to meet the energy needs of the community while also meeting carbon neutrality. A PV system size of 3400 kW is found to be required for the grid-connected community to be carbon neutral. While under this scenario a 100% reduction in carbon emissions is technically feasible, the cost of energy is estimated to be $0.194/kWh, almost double the current grid electricity price. However, if the capital cost of PV is decreased by 70% from its current level, the cost of energy due to the DG addition can be reduced significantly. In particular, a 1050-kW PV system was found to reduce the cost of energy below the grid electricity price of $0.10/kWh and achieves 31% reduction in carbon emissions for the community. Moreover, the 70% reduction in PV capital costs allows the carbon-neutral design for the community to be a cost-competitive solution with the grid.

References

1.
Enker
,
R. A.
, and
Morrison
,
G. M.
,
2019
, “
Behavioral Facilitation of a Transition to Energy Efficient and Low-Carbon Residential Buildings
,”
Buildings
,
9
(
11
), p.
226
. 10.3390/buildings9110226
2.
Blumberga
,
A.
,
Vanaga
,
R.
,
Freimanis
,
R.
,
Blumberga
,
D.
,
Antužs
,
J.
,
Krastiņš
,
A.
,
Jankovskis
,
I.
,
Bondars
,
E.
, and
Treija
,
S.
,
2020
, “
Transition From Traditional Historic Urban Block to Positive Energy Block
,”
Energy
,
202
, pp.
117485
. 10.1016/j.energy.2020.117485
3.
Laura
,
K.
Affordable Housing Crisis Spreads Throughout World—WSJ
.” https://www.wsj.com/articles/affordable-housing-crisis-spreads-throughout-world-11554210003, Accessed July 24, 2020.
4.
Pryce
,
G.
, and
Chen
,
Y.
, “
Flood Risk and the Consequences for Housing of a Changing Climate: An International Perspective
,”
Risk Management
,
13
(
4
), pp.
228
246
. 10.1057/rm.2011.13
5.
Number of People Living in Cities Will Double by 2050 TIME.com
.”, https://world.time.com/2013/12/09/un-number-city-double/, Accessed July 24, 2020.
6.
Peterson
,
K.
,
Torcellini
,
P.
, and
Grant
,
R.
,
2015
, “
A Common Definition for Zero Energy Buildings
,” https://www.energy.gov/sites/prod/files/2015/09/f26/A%20Common%20Definition%20for%20Zero%20Energy%20Buildings.pdf
7.
C40
.”. https://www.c40.org/, Accessed July 24, 2020.
8.
Defining Carbon Neutrality for Cities and Managing Residential Emissions: Cities’ Perspective and Guidance
”, https://www.c40knowledgehub.org/s/article/Defining-carbon-neutrality-for-cities-and-managing-residual-emissions-Cities-perspective-and-guidance?language=en_US
9.
Laine
,
J.
,
Heinonen
,
J.
, and
Junnila
,
S.
,
2020
, “
Pathways to Carbon-Neutral Cities Prior to a National Policy
,”
Sustainability
,
12
(
6
), p.
2445
. 10.3390/su12062445
10.
Vandevyvere
,
H.
, and
Stremke
,
S.
,
2012
, “
Urban Planning for a Renewable Energy Future: Methodological Challenges and Opportunities From a Design Perspective
,”
Sustainability
,
4
(
6
), pp.
1309
1328
. 10.3390/su4061309
11.
Salat
,
S.
,
2009
, “
Energy Loads, CO2 Emissions and Building Stocks: Morphologies, Typologies, Energy Systems and Behaviour
,”
Build. Res. Inf
,
37
(
5–6
), pp.
598
609
. 10.1080/09613210903162126
12.
Kellett
,
R.
,
Christen
,
A.
,
Coops
,
N. C.
,
van der Laan
,
M.
,
Crawford
,
B.
,
Tooke
,
T. R.
, and
Olchovski
,
I.
,
2013
, “
A Systems Approach to Carbon Cycling and Emissions Modeling at an Urban Neighborhood Scale
,”
Landsc. Urban Plan
,
110
(
1
), pp.
48
58
. 10.1016/j.landurbplan.2012.10.002
13.
A LiDAR Based Urban Metabolism Approach to Neighbourhood Scale Energy and Carbon Emissions Modelling Natural Resources Canada
.”. https://www.nrcan.gc.ca/science-and-data/non-destructive-testing/ndt-certification-body-key-contacts/publications/lidar-based-urban-metabolism-approach-neighbourhood-scale-energy-and-carbon-emissions-modelling/18350, Accessed July 24, 2020.
14.
Carlisle
,
N.
,
Otto
,
A.
,
Geet
,
V.
, and
Pless
,
S.
2009
, “
Definition of a ‘Zero Net Energy’ Community
,” http://www.osti.gov/bridge, Accessed July 24, 2020.
15.
Census Bureau: Midland Posts Largest Population Growth in Nation—Midland Reporter-Telegram
”, https://www.mrt.com/news/article/Census-Bureau-Midland-posts-largest-population-13779066.php, Accessed July 24, 2020.
16.
Garriga
,
S. M.
,
Dabbagh
,
M.
, and
Krarti
,
M.
,
2020
, “
Optimal Carbon-Neutral Retrofit of Residential Communities in Barcelona, Spain
,”
Energy Build.
,
208
, p.
109651
. 10.1016/j.enbuild.2019.109651
17.
Midland TX Real Estate Market Trends and Forecasts 2019
”, https://www.noradarealestate.com/blog/midland-tx-real-estate-market, Accessed July 24, 2020.
18.
Texas—State Energy Profile Overview—U.S. Energy Information Administration (EIA)
”, https://www.eia.gov/state/?sid=TX, Accessed July 24, 2020.
19.
Midland County, TX Oil & Gas Activity—MineralAnswers.com
”, https://www.mineralanswers.com/texas/midland-county, Accessed July 24, 2020.
20.
Chittum
,
A.
, and
Kaufman
,
N.
,
2011
, “
Challenges Facing Combined Heat and Power Today : A State-by-State Assessment
,”
Power
,
20045
(
September
), pp.
1
83
, https://www.energy.gov/sites/prod/files/2013/11/f4/ie111.pdf
21.
United States Department of Energy
. “
The State of CHP: Texas
,”
2016
. https://www.energy.gov/sites/prod/files/2017/11/f39/StateOfCHP-Texas.pdf
22.
State Mandates for Renewables Is Driving New Wind, Solar Power Projects—Houston Chronicle
.”. https://www.chron.com/business/energy/article/State-mandates-for-renewables-is-driving-new-13652699.php, Accessed July 24, 2020.
23.
Average Weather in Midland, Texas, United States, Year Round—Weather Spark
”, https://weatherspark.com/y/4333/Average-Weather-in-Midland-Texas-United-States-Year-Round, Accessed July 24, 2020.
24.
Hoen
,
B.
,
Diffendorfer
,
J.
,
Rand
,
J.
,
Kramer
,
L.
,
Garrity
,
C.
, and
Hunt
,
H.
United States Wind Turbine Database. U.S. Geological Survey, American Wind Energy Association, and Lawrence Berkeley National Laboratory Data Release: USWTDB V2.2
,”
2019
, https://eerscmap.usgs.gov/uswtdb/
25.
IECC2015
”, https://codes.iccsafe.org/content/IECC2015, Accessed July 24, 2020.
26.
Lechner
,
N.
,
2015
, “Heating, Cooling, Lighting : Sustainable Design Methods for Architects,”
Wiley
,
Hoboken, NJ
, pp.
1
720
.
27.
Tarroja
,
B.
,
Chiang
,
F.
,
AghaKouchak
,
A.
,
Samuelsen
,
S.
,
Raghavan
,
S. V.
,
Wei
,
M.
,
Sun
,
K.
, and
Hong
,
T.
,
2018
, “
Translating Climate Change and Heating System Electrification Impacts on Building Energy Use to Future Greenhouse Gas Emissions and Electric Grid Capacity Requirements in California
,”
Appl. Energy
,
225
, pp.
522
534
. 10.1016/j.apenergy.2018.05.003
28.
Raghavan
,
S. V.
,
Wei
,
M.
, and
Kammen
,
D. M.
,
2017
, “
Scenarios to Decarbonize Residential Water Heating in California
,”
Energy Policy
,
109
, pp.
441
451
. 10.1016/j.enpol.2017.07.002
29.
Fu
,
R.
, et al
,
2017
, “
U. S. Solar Photovoltaic System Cost Benchmark : Q1 2017 U. S. Solar Photovoltaic System Cost Benchmark : Q1 2017
,”
Natl. Renew. Energy Lab
, (
September
), pp.
1
59
.
30.
Distributed Generation Renewable Energy Estimate of Costs Energy Analysis NREL
”, https://www.nrel.gov/analysis/tech-lcoe-re-cost-est-2013.html, Accessed July 24, 2020.
31.
Trojan Battery 336 Amp Hour 6 Volt Deep Cycle Battery—SSIG 06 375 (J305P-AC)
”, https://www.ecodirect.com/Trojan-Battery-SSIG-06-375-336-AH-6V-Battery-p/trojan-battery-ssig-06-375.htm, Accessed July 24, 2020.
32.
Macadam
,
J.
, and
Cox
,
J.
,
2008
, “
Combined Heat and Power
,”
Chem. Eng.
,
807
, p.
32
. 10.1533/9781845694548.154
33.
Natural Gas Product Line 2G Energy, Inc
.”, http://www.2g-energy.com/products/natural-gas-product-line/#g-box-50, Accessed July 24, 2020.
34.
GSMA: Green Power for Mobile, & Areef Kassam—Field Implementation Manager
,
2010
, HOMER Software Training Guide for Renewable Energy Base Station Design, https://www.gsma.com/mobilefordevelopment/wp-content/uploads/2012/06/HOMER-Software-Training-Guide-June-2011.pdf
35.
National Renewable Energy Laboratory
,
2004,
HOMER, the Micro-power Optimization Model, Helps You Design Off-grid and Grid-Connected Systems, from https://www.nrel.gov/docs/fy04osti/35406.pdf
36.
Midland Texas Monthly Wind Averages
”. National Weather Service; NOAA, https://www.weather.gov/maf/cli_maf_winds, Accessed September 13, 2020.
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