*358 OPINION
¶ 1 Appellant Arizona Public Service Company (APS) challenges the trial court’s grant of summary judgment in favor of appellees Hohokam Irrigation and Drainage District, the Pinal County Intervenors, 1 and the Maricopa County Intervenors. 2 APS contends the trial court erred as a matter of law by declaring that Hohokam and the intervenor irrigation districts can furnish electricity to customers outside their district boundaries. Because we agree with APS’s position, we reverse the judgment.
Background
¶ 2 In Arizona, several entities are authorized by various constitutional provisions and statutes to provide electrical services to customers. Two such entities are public service corporations and irrigation districts. 3 The Arizona Constitution authorizes public service corporations, such as APS, to furnish electricity. Ariz. Const, art. XV, §§ 2 and 3. APS is regulated by the Corporation Commission, which defines APS’s area of service by issuing various certificates of public convenience and necessity. A.R.S. §§ 40-281, 40-282.
¶ 3 Hohokam and the intervenor irrigation districts and water conservation districts (collectively, irrigation districts) were created pursuant to statute. A.R.S. §§ 48-2901 through 48-3256. An irrigation district is created when a majority of landowners in an area “propose the organization of an irrigation district under the provisions of [A.R.S. Title 48, chapter 19]” in order to “provide for the irrigation of lands in the area.” § 48-2903(A). The boundaries of the district are determined by the county board of supervisors, § 48-2909, and a majority of the qualified electors in the proposed district must approve its creation. §§ 48-2913, 48-2917, and 48-2921. Irrigation districts expressly derive their authority to furnish electricity from § 48-2978, which permits an irrigation district’s board of directors to:
7. Provide for the construction, operation, leasing and control of plants for the generation, distribution, sale and lease of electrical energy, including sale to municipalities, corporations, public utility districts or individuals of electrical energy so generated.
15. Provide the district with water, electricity and other public conveniences and necessities, and engage in any and all activities, enterprises and occupations within the powers and privileges of municipalities generally.
Facts and Procedural History
1f4 In 1972, Hohokam was organized in Pinal County as an irrigation and drainage district to provide irrigation water to its farmer members at the lowest possible cost. In 1997, Hohokam entered the retail power business, planning to use the revenue from that business to reduce its members’ water costs. Hohokam buys electrical power in the wholesale market, and Electrical District No. 2(ED2) transmits that power over its grid to service drops and extension lines owned by Hohokam that serve Hohokam’s customers. Hohokam’s board of directors designated its electrical service area, an area that exceeds its defined irrigation district boundaries.
¶ 5 APS has provided electrical service in Pinal County continuously since 1930. The boundaries described in APS’s certificate of public convenience and necessity issued by the Corporation Commission cover much of the area now within Hohokam’s designated *359 electrical service area. Thus, APS and Hohokam directly compete for customers in the overlapping areas.
¶ 6 Hohokam filed this action in 1998 for declaratory and injunctive relief. Hohokam asked the trial court to declare that Hohokam has a right to own, operate, and maintain an electrical distribution and transmission system; that APS lacks legal authority to prevent Hohokam from selling electrical power within the boundaries of Hohokam’s designated service area; and that recently enacted legislation, A.R.S. § 30-801, did not limit Hohokam’s right to furnish electricity. Hohokam also sought to enjoin APS from interfering with Hohokam’s furnishing electricity within its electrical area. APS counterclaimed, requesting, inter aha, a declaration that Hohokam could furnish electricity only to Hohokam’s irrigation customers and only to those customers within the boundaries of the irrigation district.
¶ 7 The Pinal County Intervenors and the Maricopa County Intervenors, various electrical and irrigation districts, then moved to intervene as a matter of right, asserting an interest in the controversy. After the trial court granted them motions, the intervenors filed complaints for declaratory relief against APS, raising essentially the same claims as Hohokam had, as well as other claims.
¶ 8 All parties then moved for summary judgment. After oral argument, the trial court granted summary judgment without comment against APS and in favor of Hohokam, the Pinal County Intervenors, and the Maricopa County Intervenors. This appeal followed.
Discussion
¶ 9 Much of the debate in this controversy centers around the constitutional and statutory provisions that confer on irrigation districts the status of municipalities. We review issues of statutory interpretation and constitutional law de novo.
Ramirez v. Health Partners of S. Ariz.,
¶ 10 Article XIII, § 7, of the Arizona Constitution, adopted in 1940, provides:
Irrigation, power, electrical, agricultural improvement, drainage, and flood control districts, and tax levying public improvement districts, now or hereafter organized pursuant to law, shall be political subdivisions of the State, and vested with all the rights, privileges and benefits, and entitled to the immunities and exemptions granted municipalities and political subdivisions under this Constitution or any law of the State or of the United States____
Section 48-2901 provides that “[a]ll irrigation districts organized under the laws of this state are declared to be municipal corporations for all purposes” and that, “[ujnder the laws of this state affecting or relating to irrigation distriets[,] such irrigation districts shall be deemed municipal corporations in the construction and application • thereof.” And, as noted in paragraph three above, in order to accomplish the purposes of the district, an irrigation district’s board of directors may “[pjrovide the district with water, electricity and other public conveniences and necessities, and engage in any and all activities, enterprises and occupations within the powers and privileges of municipalities generally.” § 48-2978(15).
¶ 11 Hohokam and the intervenors reason that, because article II, § 34, of the Arizona Constitution authorizes a municipality to engage in industrial pursuits, including selling electricity outside its municipal boundaries,
see Crandall v. Town of Safford,
¶ 12 Despite the quoted language, the court noted that the powers of an irrigation district are less than those of municipalities. As Division One explained, “the legislature [did not] intend[] to grant special improvement districts unlimited use of municipal powers or place these districts on a par with other political subdivisions.”
Id.
An irrigation district’s “power to engage in the activities of a municipality generally is proper only when acting for a public purpose, and when the activity is incidental to the primary purpose of the district.”
Id.
(citation omitted).
See also City of Mesa v. Salt River Project Agric. Improvement & Power Dist.,
¶ 13 The “organization of an irrigation district in this state is governed by statute,” and “once organized[,] such districts have the status of political subdivisions of the state. Ariz. Const. Art. 13, Sec. 7.”
Enloe v. Baker,
Section 7 of Article XIII was added as an amendment to the Constitution of this State in 1940 after the decision of this Court in State v. Yuma Irrigation District,55 Ariz. 178 ,99 P.2d 704 (1940), which held that the property of irrigation districts and other types of districts was not exempt from taxation. The object of the amendment was to grant tax exemption status to such districts.
The amendment (Section 7, Article XIII) was not intended to limit the authority of the legislature to create political subdivisions; nor did the Yuma Irrigation District decision imply any limitation on the authority of the legislature to act in this field.
¶ 14 Thus, the legislature has acted to limit the ability of irrigation districts to provide electricity to customers only within the district. Section 48-2978(15) first states that an irrigation district may “[p]rovide the
district
with ... electricity” and then authorizes the district to “engage in any and ail activities, enterprises and occupations within the powers and privileges of municipalities generally.” (Emphasis added.)
See Mendelsohn v. Superior Court,
¶ 15 Division One’s decision in Maricopa County does not compel us to rule otherwise. The court there was required to determine whether an irrigation district was entitled to share fees collected at a regional park established by the county at a lake created by the district’s dams. In deciding the question, the court examined the powers granted to municipalities because the irrigation district statutes are silent on the matter. That is not the'case before us. Here, we are directly guided by the statute.
¶ 16 Moreover, had the legislature intended to authorize irrigation districts to supply electricity outside their boundaries, it could have expressly said so as it did in the statutes that govern power districts and electrical districts. Section 48-1545(E), A.R.S., permits the board of directors of a power district to “lease or rent the use of power on contract for the delivery thereof to the occupants of other land not included within the district at such prices and on such terms as the board deems best.” And A.R.S. § 48-1751(A), which governs electrical districts, states that “[p]ower for pumping for irrigation service shall not be extended outside the district unless there is a surplus of power over and above the needs for irrigation in the district.”
¶ 17 Hohokam and the intervenors nonetheless argue that § 48-2978(7) independently authorizes an irrigation district to sell electricity outside its boundaries. That provision permits an irrigation district’s board of directors to “[pjrovide for the construction, operation, leasing and control of plants for the generation, distribution, sale and lease of electrical energy, including sale to municipalities, corporations, public utility districts or individuals of electrical energy so generated.” § 48-2978(7). We disagree because, first, we doubt that Hohokam’s mere purchase of energy in the wholesale market brings it within the ambit of districts that construct, operate, lease, or control such plants for generating, distributing, selling, and leasing electrical energy. Second, this provision describes to whom such electrical energy can be sold, not where. That a district’s customers may be far-flung does not persuade us otherwise. Conceivably, all could be located within a single irrigation district.
¶ 18 The intervenors next contend that, because our irrigation district statutes are modeled on California’s statutes,
see In re Auxiliary Eastern Canal Irrigation District,
¶ 19 The intervenors also argue that APS should not be permitted to “attack the legal authority of irrigation districts” to serve customers outside their boundaries based on APS’s previous acknowledgment of, acquiescence in, and reliance on that authority. We fail to see, however, how APS’s actions can somehow confer statutory authority on the irrigation districts. Nor do we find relevant to the disposition of this ease the Maricopa *362 County Intervenors’ recitation of the “history and spirit of the statutes” and Hohokam’s discussion of the statutes permitting competition among various providers of electricity.
¶ 20 Accordingly, we reverse that portion of the summary judgment in favor of Hohokam and the irrigation districts regarding provision or electricity to customers outside the boundaries of their respective districts, and remand the case to the trial court with directions to enter summary judgment consistent with this decision in favor of APS. In light of our decision, we vacate the trial court’s order awarding attorney’s fees to the intervenors on the foregoing issue only. We also deny the intervenors’ request for attorney’s fees on appeal. .
Notes
. The Pinal County Intervenors are Central Arizona Irrigation and Drainage District, Electrical District No. One, Electrical District No. 3, Electrical District No. 4, Electrical District No. 5, and Maricopa-Stanfield Irrigation & Drainage District.
. The Maricopa County Intervenors are Harquahala Power District, Aguila Irrigation District, McMullen Valley Water Conservation and Drainage District, Buckeye Water Conservation and Drainage District, Roosevelt Irrigation District, Electrical District No. 7, and Electrical District No. 8.
. Other such entities include power districts, A.R.S. §§ 48-1501 through 48-1619; electrical districts, A.R.S. §§ 48-1701 through 48-1822; and agricultural improvement districts, A.R.S. §§ 48-2301 through 48-2475.
