CANTERO, J.
We review a decision of the Florida Public Service Commission settling a territorial dispute between two utilities competing to provide electric service to a natural gas company's compression station, located in a rural area of Washington County. We have jurisdiction. See art. V, § 3(b)( 2), Fla. Const. The issues are (1) whether, in awarding service to appellee Gulf Power Company, the commission failed to consider the appellant's historical presence in the area and gave undue weight to the customer's preference; and (2) whether the commission departed from the essential requirements of law in drawing the territorial boundary around the footprint of the motors of the new compression station, rather than around the entire rural area. We affirm.
I.
Appellant West Florida Electric Cooperative Association provides electric service in Washington County to homes and farms in a rural area within a four-mile radius of a location known as Hinson's Crossroads. It provides 120/240 volt electric service to Florida Gas Transmission (FGT), which owns and operates a natural gas-fired gas compression station in the area. The station is part of FGT's natural gas pipeline, which runs through Florida. Appellee Gulf Power also provides electric service in Washington County, although not in the Hinson's Crossroads area.
In the mid-1990s, FGT decided to build another compression station on its 35-acre site, which would use two 15,000-horsepower electric motors. FGT contracted with Enron Compression Services (ECS) to provide the compression, i.e., the mechanical energy from the motors. ECS in turn sought to contract with Gulf Power to provide electricity to drive the motors. When ECS and Gulf Power requested the commission's approval through a petition for declaratory statement, West Florida petitioned the commission for resolution of the territorial dispute.
Section 366.04, Florida Statutes (2000), grants the commission authority to resolve territorial disputes between utilities. The commission's overarching concern in settling such disputes is the avoidance of uneconomic duplication. Section 366.04(5) provides that the commission "shall further have jurisdiction over the planning, development, and maintenance of a coordinated electric power grid throughout Florida to assure . . . the avoidance of further uneconomic duplication of generation, transmission, and distribution facilities." See Gulf Coast Elec. Coop., Inc. v. Johnson, 727 So.2d 259, 264 (Fla. 1999) (stating that commission "is to be guided by this statutory mandate to avoid further uneconomic duplication of facilities in its decisions regarding territorial agreements and territorial disputes"). The statute also outlines certain factors that the commission "may consider, but not be limited to consideration of," in resolving a dispute. § 366.04(2)(e), Fla. Stat. (2000). These are "the ability of the utilities to expand services within their own capabilities and the nature of the area involved, including population, the degree of urbanization of the area, its proximity to other urban areas, and the present and reasonably foreseeable future requirements of the area for other utility services." Id.
The commission's regulations implementing section 366.04 are contained in the Florida Administrative Code. They list the following four nonexclusive factors that the commission may consider in resolving territorial disputes:
(a) the capability of each utility to provide reliable electric service within the disputed area with its existing facilities and the extent to which additional facilities are needed;
(b) the nature of the disputed area including population and the type of utilities seeking to serve it, and degree of urbanization of the area and its proximity to other urban areas, and the present and reasonably foreseeable future requirements of the area for other utility services;
(c) the cost of each utility to provide distribution and subtransmission facilities to the disputed area presently and in the future; and
(d) customer preference if all other factors are substantially equal.
Fla. Admin. Code R. 25-6.0441(2).
Pursuant to these authorities, the commission held a hearing to resolve the dispute and applied the factors listed in rule 25-6.0441(2). Regarding factors (a) and (c), West Florida and Gulf Power stipulated, and the commission found, that neither utility could adequately serve the new station, that the estimated cost to build the required six-mile transmission line would be the same for both utilities (about $5.5 million), and that both had equal access to Gulf Power's 230 kilovolt (kV) system, which was needed to power the new motors. The commission also found that both utilities could provide reliable service through the additional facilities. Regarding factor (b), the commission found that both utilities served rural areas in Washington County, such as the disputed area, but that the needs of the new compression station were unique because the new motors required 230 kV service. The commission accepted West Florida's claim that the dispute encompassed the entire Hinson's Crossroads area. It noted, however, that no territorial agreement existed between the utilities in the disputed area and concluded that it need not establish a territorial boundary around Hinson's Crossroads. Instead, it drew the boundary around the footprint of the two electric motors of the new compression station.
The commission thus determined that none of these factors substantially favored either utility. As a result, the commission found that factor (d) — ECS's undisputed preference for Gulf — was determinative. The commission further found that neither economic nor uneconomic duplication of services would result from an award of service to Gulf Power. Based on these findings, the commission awarded service to Gulf Power.
II.
Commission orders come to this Court clothed with the presumption that they are reasonable and just. Johnson, 727 So.2d at 262. The party challenging such an order thus must show a departure from the essential requirements of law. Ameristeel Corp. v. Clark, 691 So.2d 473, 477 (Fla. 1997). This Court will approve the commission's findings and conclusions if they are based upon competent, substantial evidence and are not clearly erroneous. Id.
West Florida first argues that the commission's order is not supported by competent, substantial evidence. It concedes that factors (b) and (c) are not at issue. It also does not contest the commission's findings as to factor (a) (service reliability) except to argue that the commission should have weighed the utility's testimony that awarding service to West Florida potentially would result in more reliable service to West Florida's other customers. As the commission found, however, West Florida already provided reliable service to the area and would continue to do so. Accordingly, we find that competent, substantial evidence supports the commission's finding of no additional reliability benefit.
As to factor (d) (customer preference), West Florida concedes that ECS prefers Gulf Power. It argues, however, that by considering ECS's preference for Gulf Power to be determinative, the commission permitted "customer choice" to determine selection of the service provider, in contravention of cases from this Court. We disagree. We previously have held that customer preference should be considered a significant factor where the other factors in rule 25-6.0441 are substantially equal. See Gulf Coast Elec. Coop., Inc. v. Clark, 674 So.2d 120, 123 (Fla. 1996). Although we also have warned that an "individual has no organic, economic or political right to service by a particular utility merely because he deems it advantageous to himself," Lee County Elec. Coop. v. Marks, 501 So.2d 585, 587 (Fla. 1987), the commission's order in no way violates this principle. The commission followed section 366.04, Florida Statutes, and rule 25-6.0441(2) by assessing a number of factors. Determining in this case that factors (a) through (c) of rule 25-6.0441(2) were "substantially equal," the commission then considered subsection (d), the customer's preference, and found that factor to be determinative. We hold that competent, substantial evidence supports the commission's findings and that the commission did not depart from the essential requirements of law by considering customer preference.
III.
West Florida also argues that all relevant factors were not substantially equal so as to allow the commission to consider customer preference. It contends that the commission failed to consider the utility's historical presence in the area. Neither the statute nor the rule, however, requires the commission to consider a utility's historical presence in an area. See § 366.04, Fla. Stat. (2000); Fla. Admin. Code R. 25-6.0441. Because the listed factors are not exclusive, however, the commission is free to consider other factors, including historical presence. See id.
The governing statute charges the commission to avoid "further uneconomic duplication of generation, transmission, and distribution facilities." § 366.04(5), Fla. Stat. (2000). The historical presence of one utility in an area thus may be relevant in determining whether uneconomic duplication would result from an award of service to another. Accordingly, the commission has accorded some weight to a utility's historical presence in resolving territorial disputes where it found that an award of service to the competing utility resulted in uneconomic duplication or greater costs of service. See, e.g., In re Territorial Dispute Between Suwannee Valley Elec. Coop. and Fla. Power Corp., 87 F.P.S.C. 11:213 (1987) (awarding service area to Florida Power Corporation where there was no uneconomic duplication but Florida Power provided historic service and was more economical); In re Petition of Gulf Coast Elec. Coop., 86 F.P.S.C. 5:138 (1986) (awarding service to Gulf Coast Electric Cooperative where Gulf Coast historically served area and Gulf Power's costs to serve were excessive and caused uneconomic duplication); In re Petition of Suwannee Valley Elec. Coop., 83 F.P.S.C. 90 (1983) (awarding service area, which Suwannee Valley Electric Cooperative historically served, to Suwannee Valley where award to other utility would result in greater costs to serve and uneconomic duplication).
Where no territorial agreement exists and no uneconomic duplication would result, however, utilities may serve adjacent areas. In this case, the utilities stipulated that construction of facilities needed to provide service to the motors at the new compression station would not cause uneconomic duplication of electrical facilities and that costs would be the same. Therefore, West Florida's historical presence had little or no relevance. The commission was well within its discretion in restricting its consideration to the factors listed in the rule.
Nevertheless, the commission did consider West Florida's historical presence, although it ultimately assigned it little weight. The commission acknowledged that West Florida had long served rural customers in the Hinson's Crossroads area with 120/240 volt service. It concluded, however, that the power needs of the electric motors were "quite unique" because, unlike anything in the disputed area, the motors required 230 kV service. West Florida does not contest this finding. The commission also acknowledged that Gulf Power owned the nearest source to serve this "unique load," although both utilities had access to this source and would build the same facilities to serve the motors reliably. Therefore, not only did the commission consider West Florida's historical presence, it found that the unique character of the service needed in this case rendered irrelevant West Florida's different type of service to the area.
At its heart, West Florida's claim is that the commission should have assigned dispositive weight to its historical presence in the area. It is not this Court's task, however, to reweigh the evidence and the factors considered. See Panda-Kathleen, L.P. v. Clark, 701 So.2d 322, 328 (Fla. 1997) (stating that review of commission orders is to determine whether they are supported by competent, substantial evidence or depart from the essential requirements of law, and this Court "will not reweigh or reevalutate the evidence presented to the commission"). We cannot say that the commission's determination in this regard departed from the essential requirements of law.
IV.
West Florida next contends that the commission erred by failing to draw a territorial boundary around the entire disputed area of Hinson's Crossroads. This Court has recognized, however, "that the [commission] is not required as a matter of law to establish territorial boundaries in order to resolve a territorial dispute that does not involve service to current or future identifiable customers." Johnson, 727 So.2d at 264. In Johnson, we affirmed the commission's refusal to draw territorial boundaries to establish exclusive service areas where no dispute existed over service to a current or future identifiable customer, either where the utilities were commingled or in the undeveloped areas. In this case, the parties stipulated that service to the electric motors was the only present and reasonably foreseeable future requirement of the area in dispute. Therefore, because this dispute concerns one identifiable facility/customer, we find no error in the commission's refusal to draw a boundary around the Hinson's Crossroads area. See id. (upholding commission's decision not to draw territorial boundary where "it is unclear where future growth will occur"). Cf. In re Petition to Resolve Territorial Dispute with Clay Elec. Coop., 98 F.P.S.C. 1:671 (1998) (declining to limit disputed area to single facility's property boundary because of potential for future conflict and uneconomic duplication upon development of entire industrial park). Moreover, in light of the utilities' stipulations, the unique character of the power requirements in this case, and the commission's finding that no uneconomic duplication will result if Gulf Power provides the service, the commission did not depart from the essential requirements of law in drawing a discrete boundary around the electric motors involved. We recognize that West Florida will supply the 120/240 volt requirements of the station in which the motors are housed, just as it already supplies this service to the existing station, but we cannot say that the commission's decision constitutes clear error.
Finally, West Florida claims that drawing the boundary around the motors contravenes the law because territorial disputes do not involve customers but geographic areas. A territorial dispute is a disagreement over which utility will serve a geographic area. Fla. Admin. Code R. 25-6.0439. Service to an area necessarily means service to customers. In Johnson, 727 So.2d at 264, we affirmed the commission's authority, as a matter of law, to refuse to draw a territorial boundary where there was no actual dispute over any customer. In addition, it is not unusual for the commission to resolve a territorial dispute by determining which utility will serve a single customer. In Gulf Coast Electric Cooperative, Inc. v. Clark, 674 So.2d at 121, 123, for example, the territorial dispute between two utilities arose over which would serve a prison to be built in Washington County, and only service to this customer was decided. Accordingly, the commission's drawing of the discrete territory does not constitute a departure from the essential requirements of law.
V.
For the foregoing reasons, we affirm the order of the commission awarding service to Gulf Power.
It is so ordered.
PARIENTE, C.J., and WELLS and ANSTEAD, JJ., concur.
LEWIS, J., dissents with an opinion, in which QUINCE, J., concurs.
QUINCE, J., dissents with an opinion, in which LEWIS, J., concurs.