Illinois Compiled Statutes
Information maintained by the Legislative Reference Bureau
Updating the database of the Illinois Compiled Statutes (ILCS) is an ongoing process. Recent laws may not yet be included in the ILCS database, but they are found on this site as Public Acts
soon after they become law. For information concerning the relationship between statutes and Public Acts, refer to the Guide
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35 ILCS 200/10-5
(35 ILCS 200/10-5)
Solar energy systems; definitions.
It is the policy of this
State that the use of solar energy systems should be encouraged because they
conserve nonrenewable resources, reduce pollution and promote the health and
well-being of the people of this State, and should be valued in relation to
(a) "Solar energy" means radiant energy received from
the sun at wave lengths suitable for heat transfer, photosynthetic use,
or photovoltaic use.
(b) "Solar collector" means
(1) An assembly, structure, or design, including
passive elements, used for gathering, concentrating, or absorbing direct and indirect solar energy, specially designed for holding a substantial amount of useful thermal energy and to transfer that energy to a gas, solid, or liquid or to use that energy directly; or
(2) A mechanism that absorbs solar energy and
converts it into electricity; or
(3) A mechanism or process used for gathering solar
energy through wind or thermal gradients; or
(4) A component used to transfer thermal energy to a
gas, solid, or liquid, or to convert it into electricity.
(c) "Solar storage mechanism" means equipment or elements (such as
piping and transfer mechanisms, containers, heat exchangers, or controls
thereof, and gases, solids, liquids, or combinations thereof) that are
utilized for storing solar energy, gathered by a solar collector, for
(d) "Solar energy system" means
(1)(A) A complete assembly, structure, or design of
solar collector, or a solar storage mechanism, which uses solar energy for generating electricity that is primarily consumed on the property on which the solar energy system resides, or for heating or cooling gases, solids, liquids, or other materials for the primary benefit of the property on which the solar energy system resides;
(B) The design, materials, or elements of a system
and its maintenance, operation, and labor components, and the necessary components, if any, of supplemental conventional energy systems designed or constructed to interface with a solar energy system; and
(C) Any legal, financial, or institutional orders,
certificates, or mechanisms, including easements, leases, and agreements, required to ensure continued access to solar energy, its source, or its use in a solar energy system, and including monitoring and educational elements of a demonstration project.
(2) "Solar energy system" does not include
(A) Distribution equipment that is equally usable
in a conventional energy system except for those components of the equipment that are necessary for meeting the requirements of efficient solar energy utilization;
(B) Components of a solar energy system that
serve structural, insulating, protective, shading, aesthetic, or other non-solar energy utilization purposes, as defined in the regulations of the Department of Commerce and Economic Opportunity; and
(C) A commercial solar energy system, as defined
by this Code, in counties with fewer than 3,000,000 inhabitants.
(3) The solar energy system shall conform to the
standards for those systems established by regulation of the Department of Commerce and Economic Opportunity.
(Source: P.A. 100-781, eff. 8-10-18.)
35 ILCS 200/10-10
(35 ILCS 200/10-10)
Valuation of solar energy systems.
When a solar energy system
has been installed in improvements on any property, the owner of that property
is entitled to claim, by filing with the chief county assessment officer, an
alternate valuation of those improvements. When a claim for alternate
valuation is filed, the chief county assessment officer shall ascertain the
value of the improvements as if equipped with a conventional heating or cooling
system and the value of the improvements as equipped with the solar energy
system. So long as the solar energy system is used in total or part as the
means of utilizing solar energy improvements, the alternate valuation computed
as the lesser of the two values ascertained under this paragraph shall be
applied. When the solar energy system so valued ceases to be used as the means
of heating or cooling those improvements, the owner of that property shall
within 30 days notify the chief county assessment officer in writing
by certified mail.
(Source: P.A. 80-430; 88-455.)
35 ILCS 200/Art. 10 Div. 2
(35 ILCS 200/Art. 10 Div. 2 heading)
35 ILCS 200/10-15
(35 ILCS 200/10-15)
Condominiums and cooperatives.
In counties with 200,000 or more
inhabitants which classify property, condominiums occupied by the owner as a
residence for a minimum of 6 months during the year and created in accordance
with the provisions of the "Condominium Property Act", as well as land with
improvements owned and operated as a cooperative, shall be assessed on the same
basis of assessment as single family residences in such counties.
(Source: P.A. 78-709; 88-455.)
35 ILCS 200/10-20
(35 ILCS 200/10-20)
Repairs and maintenance of residential property.
Maintenance and repairs to residential property owned and used
exclusively for a residential purpose shall not increase the assessed
valuation of the property. For purposes of this Section, work
shall be deemed repair and maintenance when it (1) does not increase the
square footage of improvements and does not materially alter the
existing character and condition of the structure but is limited to work
performed to prolong the life of the existing improvements or to keep the
existing improvements in a well maintained condition; and (2) employs
materials, such as those used for roofing or siding, whose value is not greater
than the replacement value of the materials being replaced.
Maintenance and repairs, as
those terms are used in this Section, to property that enhance the overall
exterior and interior appearance and quality of a residence by restoring
it from a state of disrepair to a standard state of repair do not "materially
existing character and condition" of the residence.
(Source: P.A. 90-788, eff. 8-14-98.)