Common use of Supplemental Benefit Clause in Contracts

Supplemental Benefit. (a) Subject to the following provisions of this Article III and Section 7.1, if the Officer has five or more years of Continuous SRP Employment, remains a full-time employee, remains an Eligible Officer until his or her Normal Retirement Date, and subsequently Retires, the Officer shall receive a Supplemental Benefit equal to 50% of the Officer’s Final Average Earnings, reduced by the sum of the monthly benefits payable to the Officer from all of the Pension Plans. (b) For the purposes of Section 3.1(a), the amount of the Officer’s monthly benefit from each applicable Pension Plan shall be determined as follows: (i) If the Officer receives a joint and survivor annuity from the Alliant Energy Cash Balance Pension Plan and the Officer’s Surviving Spouse is the joint annuitant, the Officer’s monthly benefit from that Pension Plan shall be the monthly amount payable to the Officer under such joint and survivor annuity. (ii) If the Officer receives a single life annuity from the Alliant Energy Cash Balance Pension Plan, the Officer’s monthly benefit from that Pension Plan shall be the monthly amount payable to the Officer under such single life annuity. (iii) If the Officer receives any other form of payment from a Pension Plan, such other form of payment shall be converted to an actuarially equivalent single life annuity, using the actuarial assumptions under the Alliant Energy Cash Balance Pension Plan that would apply as of the Officer’s Separation from Service if the payment were from that Pension Plan, and the Officer’s monthly benefit from the Pension Plan shall be the monthly amount that would be payable to the Officer under such single life annuity. (iv) If a portion of the Officer’s benefits under any Pension Plan has been awarded to an Alternate Payee pursuant to a qualified domestic relations order, as defined in Code Section 414(p), the Officer’s monthly benefit from that Pension Plan shall be deemed to be the amount that would have been payable to the Officer if no such order had been entered. (v) The Officer’s monthly benefit from each Pension Plan shall be determined as though it had commenced on the first day of the month following the Officer’s Separation from Service, regardless of when the Officer’s Pension Plan benefit actually commences. If the Officer has not selected a form of payment from the Alliant Energy Cash Balance Pension Plan by that time, the form of payment shall be assumed to be a single life annuity. (vi) For the portion of any Pension Plan that is a defined contribution account, the applicable value of the Pension Plan shall be determined as of the calendar month end which is one full month prior to the date of calculation hereunder. (c) The Supplemental Benefit shall be paid at the same time and in the same form as the benefits the Officer is entitled to receive from the Pension Plans that are nonqualified deferred compensation arrangements. The applicable rules are as follows: (i) The form of payment shall be one of the following: (A) 216 monthly installments in the amount of the Supplemental Benefit; (B) a single lump sum that is the actuarially equivalent amount to the 216 monthly installments of the Supplemental Benefit using the actuarial assumptions described in (iv) below; or (C) 5 annual installments, with the lump sum value in (B) above being deemed the initial account and 20% thereof being the first annual installment, with the remaining account balance being credited with deemed interest as if invested in the Interest Account of the Alliant Energy Deferred Compensation Plan and in each of the following four Januarys following the Officer’s Separation from Service additional payments being made of 25%, 33 1/3%, 50% and 100%, respectively, of the then-value of the remaining account. (ii) The commencement of payment shall be the first day of the month following the Officer’s Separation from Service, provided, however, that all such payments otherwise due during the first 6 months following the Separation from Service shall be delayed, without any interest for the delayed payment, until the first day of the 7th month following the month in which the Officer’s Separation from Service occurs. (iii) On or before December 31, 2008, the Officer shall have the opportunity to elect which form of payment in Section 3.1(c)(i) above shall apply to the Officer. In the event of failure to make such an election on or before December 31, 2008, the default shall be 5 annual installments. Such election (or default) shall generally be irrevocable, provided, however that an Officer may change such payment form once (but only once) as follows: (A) in order to be valid, a new election must be made at least 12 months prior to the Officer’s Separation from Service; and (B) if a valid election is made pursuant to (A) above, the date of commencement of the new benefits shall be deferred, without any interest or actuarial adjustment, for 5 years from the date that would otherwise have applied (after application of the 6-month delay in Section 3.1(c)(ii)) pursuant to Section 3.1(c)(ii), provided, however, if the Officer’s death occurs during the 5-year deferral period, the remaining portion of any 5-year deferral period shall be waived and payment commenced pursuant to the applicable election. (iv) The lump sum payment amount provided under (i)(B) shall be determined using as the discount rate the 12-month average of 10-year Treasury Yields (meaning Federal Reserve U.S. Treasury ten-year actively traded securities) in effect as of the beginning of the calendar year in which the lump sum benefit is paid. The mortality table shall be the same table as then in use for determining lump sums under the Alliant Energy Cash Balance Pension Plan.

Supplemental Benefit. (a) Subject to the following provisions of this Article III and Section 7.1III, if the Officer has five or more years of Continuous SRP Employment, remains a full-time employee, remains employee and an Eligible Officer eligible officer of the Company until his or her Normal Retirement Date, and subsequently Retires, the Officer shall receive a Supplemental Benefit equal to 5060% of the Officer’s 's Final Average Earnings, reduced by the sum of of: (i) the monthly benefits benefit payable to the Officer from all the Pension Plan; plus (ii) the monthly amount of the Pension PlansOfficer's Prior Employer Benefit. The Supplemental Benefit shall be paid in equal monthly installments, commencing on the first day of the month following the Officer's retirement from the Company as both an officer and an employee and ending when 216 monthly payments have been made to the Officer. (ba) For the purposes of Section 3.1(aSubparagraph (a), the amount of the Officer’s 's monthly benefit from each applicable the Pension Plan shall be determined as follows: (i) If the Officer receives a joint and survivor annuity from the Alliant Energy Cash Balance Pension Plan and the Officer’s 's Surviving Spouse is the joint annuitant, the Officer’s 's monthly benefit from that the Pension Plan shall be the monthly amount payable to the Officer under such joint and survivor annuity. (ii) If the Officer receives a single life annuity from the Alliant Energy Cash Balance Pension Plan, the Officer’s 's monthly benefit from that the Pension Plan shall be the monthly amount payable to the Officer under such single life annuity. (iii) If the Officer receives any other form of payment from a the Pension Plan, such other form of payment shall be converted to an actuarially equivalent single life annuity, using the actuarial assumptions then in use for such purpose under the Alliant Energy Cash Balance Pension Plan that would apply as of the Officer’s Separation from Service if the payment were from that Pension Plan, and the Officer’s 's monthly benefit from the Pension Plan shall be the monthly amount that would be payable to the Officer under such single life annuity. (iv) If a portion of the Officer’s 's benefits under any the Pension Plan has have been awarded to an Alternate Payee pursuant to a qualified domestic relations order, as defined in Code Section 414(p)) of the Internal Revenue Code, the Officer’s 's monthly benefit from that the Pension Plan shall be deemed to be the amount that would have been payable to the Officer if no such order had been entered. (v) The Officer’s 's monthly benefit from each the Pension Plan shall be determined as though it had commenced on the first day of the month following same date as the Officer’s Separation from Service's Supplemental Benefit, regardless of when the Officer’s 's Pension Plan benefit actually commences. If the Officer has not selected a form of payment from the Alliant Energy Cash Balance Pension Plan by that time, the form of payment shall be assumed to be a single life annuity. (vi) For Any increase in the portion monthly amount of any the Officer's Pension Plan that is a defined contribution account, benefit shall correspondingly reduce the applicable value monthly amount of the Pension Plan Officer's Supplemental Benefit unless the Board of Directors provides by resolution that the Supplemental Benefit shall not be determined as of the calendar month end which is one full month prior to the date of calculation hereunderso reduced. (cb) The Supplemental For the purposes of Subparagraph (a), the monthly amount of the Officer's Prior Employer Benefit shall be paid at the same time determined, and shall be included in the same form as the benefits the Officer is entitled to receive from the Pension Plans that are nonqualified deferred compensation arrangements. The applicable rules are as follows: (i) The form of payment shall be one of the following: (A) 216 monthly installments in the amount computation of the Supplemental Benefit; (B) a single lump sum that is , in the actuarially equivalent amount to the 216 monthly installments sole and absolute discretion of the Supplemental Benefit using the actuarial assumptions described in (iv) below; or (C) 5 annual installments, with the lump sum value in (B) above being deemed the initial account and 20% thereof being the first annual installment, with the remaining account balance being credited with deemed interest as if invested in the Interest Account Board of the Alliant Energy Deferred Compensation Plan and in each of the following four Januarys following the Officer’s Separation from Service additional payments being made of 25%, 33 1/3%, 50% and 100%, respectively, of the then-value of the remaining accountDirectors. (ii) The commencement of payment shall be the first day of the month following the Officer’s Separation from Service, provided, however, that all such payments otherwise due during the first 6 months following the Separation from Service shall be delayed, without any interest for the delayed payment, until the first day of the 7th month following the month in which the Officer’s Separation from Service occurs. (iii) On or before December 31, 2008, the Officer shall have the opportunity to elect which form of payment in Section 3.1(c)(i) above shall apply to the Officer. In the event of failure to make such an election on or before December 31, 2008, the default shall be 5 annual installments. Such election (or default) shall generally be irrevocable, provided, however that an Officer may change such payment form once (but only once) as follows: (A) in order to be valid, a new election must be made at least 12 months prior to the Officer’s Separation from Service; and (B) if a valid election is made pursuant to (A) above, the date of commencement of the new benefits shall be deferred, without any interest or actuarial adjustment, for 5 years from the date that would otherwise have applied (after application of the 6-month delay in Section 3.1(c)(ii)) pursuant to Section 3.1(c)(ii), provided, however, if the Officer’s death occurs during the 5-year deferral period, the remaining portion of any 5-year deferral period shall be waived and payment commenced pursuant to the applicable election. (iv) The lump sum payment amount provided under (i)(B) shall be determined using as the discount rate the 12-month average of 10-year Treasury Yields (meaning Federal Reserve U.S. Treasury ten-year actively traded securities) in effect as of the beginning of the calendar year in which the lump sum benefit is paid. The mortality table shall be the same table as then in use for determining lump sums under the Alliant Energy Cash Balance Pension Plan.

Supplemental Benefit. (a) Subject to the following provisions of this Article III and Section 7.1, if the Officer has five or more years of Continuous SRP Employment, remains a full-time employee, remains an Eligible Officer until his or her Normal Retirement Date, and subsequently Retires, the Officer shall receive a Supplemental Benefit equal to 5060% of the Officer’s Final Average Earnings, reduced by the sum of the monthly benefits payable to the Officer from all of the Pension Plans. (b) For the purposes of Section 3.1(a), the amount of the Officer’s monthly benefit from each applicable Pension Plan shall be determined as follows: (i) If the Officer receives a joint and survivor annuity from the Alliant Energy Cash Balance Pension Plan and the Officer’s Surviving Spouse is the joint annuitant, the Officer’s monthly benefit from that Pension Plan shall be the monthly amount payable to the Officer under such joint and survivor annuity. (ii) If the Officer receives a single life annuity from the Alliant Energy Cash Balance Pension Plan, the Officer’s monthly benefit from that Pension Plan shall be the monthly amount payable to the Officer under such single life annuity. (iii) If the Officer receives any other form of payment from a Pension Plan, such other form of payment shall be converted to an actuarially equivalent single life annuity, using the actuarial assumptions under the Alliant Energy Cash Balance Pension Plan that would apply as of the Officer’s Separation from Service if the payment were from that Pension Plan, and the Officer’s monthly benefit from the Pension Plan shall be the monthly amount that would be payable to the Officer under such single life annuity. (iv) If a portion of the Officer’s benefits under any Pension Plan has been awarded to an Alternate Payee pursuant to a qualified domestic relations order, as defined in Code Section 414(p), the Officer’s monthly benefit from that Pension Plan shall be deemed to be the amount that would have been payable to the Officer if no such order had been entered. (v) The Officer’s monthly benefit from each Pension Plan shall be determined as though it had commenced on the first day of the month following the Officer’s Separation from Service, regardless of when the Officer’s Pension Plan benefit actually commences. If the Officer has not selected a form of payment from the Alliant Energy Cash Balance Pension Plan by that time, the form of payment shall be assumed to be a single life annuity. (vi) For the portion of any Pension Plan that is a defined contribution account, the applicable value of the Pension Plan shall be determined as of the calendar month end which is one full month prior to the date of calculation hereunder. (c) The Supplemental Benefit shall be paid at the same time and in the same form as the benefits the Officer is entitled to receive from the Pension Plans that are nonqualified deferred compensation arrangements. The applicable rules are as follows: (i) The form of payment shall be one of the following: (A) 216 monthly installments for the lifetime of the Officer in the amount of the Supplemental Benefit; (B) a single lump sum that is the actuarially equivalent amount to the 216 monthly installments single life annuity of the Supplemental Benefit using the actuarial assumptions described in (iv) below; or (C) 5 annual installments, with the lump sum value in (B) above being deemed the initial account and 20% thereof being the first annual installment, with the remaining account balance being credited with deemed interest as if invested in the Interest Account of the Alliant Energy Deferred Compensation Plan and in each of the following four Januarys following the Officer’s Separation from Service additional payments being made of 25%, 33 1/3%, 50% and 100%, respectively, of the then-value of the remaining account. (ii) The commencement of payment shall be the first day of the month following the Officer’s Separation from Service, provided, however, that all such payments otherwise due during the first 6 months following the Separation from Service shall be delayed, without any interest for the delayed payment, until the first day of the 7th month following the month in which the Officer’s Separation from Service occurs. (iii) On or before December 31, 2008, the Officer shall have the opportunity to elect which form of payment in Section 3.1(c)(i) above shall apply to the Officer. In the event of failure to make such an election on or before December 31, 2008, the default shall be 5 annual installments. Such election (or default) shall generally be irrevocable, provided, however that an Officer may change such payment form once (but only once) as follows: (A) in order to be valid, a new election must be made at least 12 months prior to the Officer’s Separation from Service; and (B) if a valid election is made pursuant to (A) above, the date of commencement of the new benefits shall be deferred, without any interest or actuarial adjustment, for 5 years from the date that would otherwise have applied (after application of the 6-month delay in Section 3.1(c)(ii)) pursuant to Section 3.1(c)(ii), provided, however, if the Officer’s death occurs during the 5-year deferral period, the remaining portion of any 5-year deferral period shall be waived and payment commenced pursuant to the applicable election. (iv) The lump sum payment amount provided under (i)(B) shall be determined using as the discount rate the 12-month average of 10-year Treasury Yields (meaning Federal Reserve U.S. Treasury ten-year actively traded securities) in effect as of the beginning of the calendar year in which the lump sum benefit is paid. The mortality table shall be the same table as then in use for determining lump sums under the Alliant Energy Cash Balance Pension Plan.

Supplemental Benefit. (a) Subject to the following provisions of this Article III and Section 7.1, if the Officer has five or more years of Continuous SRP Employment, remains a full-time employee, remains an Eligible Officer until his or her Normal Retirement Date, and subsequently Retires, the Officer shall receive a Supplemental Benefit equal to 5060% of the Officer’s Final Average Earnings, reduced by the sum of the monthly benefits payable to the Officer from all of the Pension Plans. (b) For the purposes of Section 3.1(a), the amount of the Officer’s monthly benefit from each applicable Pension Plan shall be determined as follows: (i) If the Officer receives a joint and survivor annuity from the Alliant Energy Cash Balance Pension Plan and the Officer’s Surviving Spouse is the joint annuitant, the Officer’s monthly benefit from that Pension Plan shall be the monthly amount payable to the Officer under such joint and survivor annuity. (ii) If the Officer receives a single life annuity from the Alliant Energy Cash Balance Pension Plan, the Officer’s monthly benefit from that Pension Plan shall be the monthly amount payable to the Officer under such single life annuity. (iii) If the Officer receives any other form of payment from a Pension Plan, such other form of payment shall be converted to an actuarially equivalent single life annuity, using the actuarial assumptions under the Alliant Energy Cash Balance Pension Plan that would apply as of the Officer’s Separation from Service if the payment were from that Pension Plan, and the Officer’s monthly benefit from the Pension Plan shall be the monthly amount that would be payable to the Officer under such single life annuity. (iv) If a portion of the Officer’s benefits under any Pension Plan has been awarded to an Alternate Payee pursuant to a qualified domestic relations order, as defined in Code Section 414(p), the Officer’s monthly benefit from that Pension Plan shall be deemed to be the amount that would have been payable to the Officer if no such order had been entered. (v) The Officer’s monthly benefit from each Pension Plan shall be determined as though it had commenced on the first day of the month following the Officer’s Separation from Service, regardless of when the Officer’s Pension Plan benefit actually commences. If the Officer has not selected a form of payment from the Alliant Energy Cash Balance Pension Plan by that time, the form of payment shall be assumed to be a single life annuity. (vi) For the portion of any Pension Plan that is a defined contribution account, the applicable value of the Pension Plan shall be determined as of the calendar month end which is one full month prior to the date of calculation hereunder. (c) The Supplemental Benefit shall be paid at the same time and in the same form as the benefits the Officer is entitled to receive from the Pension Plans that are nonqualified deferred compensation arrangements. The applicable rules are as follows: (i) The form of payment shall be one of the following: (A) 216 monthly installments in the amount of the Supplemental Benefit; (B) a single lump sum that is the actuarially equivalent amount to the 216 monthly installments of the Supplemental Benefit using the actuarial assumptions described in (iv) below; or (C) 5 annual installments, with the lump sum value in (B) above being deemed the initial account and 20% thereof being the first annual installment, with the remaining account balance being credited with deemed interest as if invested in the Interest Account of the Alliant Energy Deferred Compensation Plan and in each of the following four Januarys following the Officer’s Separation from Service additional payments being made of 25%, 33 1/3%, 50% and 100%, respectively, of the then-value of the remaining account. (ii) The commencement of payment shall be the first day of the month following the Officer’s Separation from Service, provided, however, that all such payments otherwise due during the first 6 months following the Separation from Service shall be delayed, without any interest for the delayed payment, until the first day of the 7th month following the month in which the Officer’s Separation from Service occurs. (iii) On or before December 31, 2008, the Officer shall have the opportunity to elect which form of payment in Section 3.1(c)(i) above shall apply to the Officer. In the event of failure to make such an election on or before December 31, 2008, the default shall be 5 annual installments. Such election (or default) shall generally be irrevocable, provided, however that an Officer may change such payment form once (but only once) as follows: (A) in order to be valid, a new election must be made at least 12 months prior to the Officer’s Separation from Service; and (B) if a valid election is made pursuant to (A) above, the date of commencement of the new benefits shall be deferred, without any interest or actuarial adjustment, for 5 years from the date that would otherwise have applied (after application of the 6-month delay in Section 3.1(c)(ii)) pursuant to Section 3.1(c)(ii), provided, however, if the Officer’s death occurs during the 5-year deferral period, the remaining portion of any 5-year deferral period shall be waived and payment commenced pursuant to the applicable election. (iv) The lump sum payment amount provided under (i)(B) shall be determined using as the discount rate the 12-month average of 10-year Treasury Yields (meaning Federal Reserve U.S. Treasury ten-year actively traded securities) in effect as of the beginning of the calendar year in which the lump sum benefit is paid. The mortality table shall be the same table as then in use for determining lump sums under the Alliant Energy Cash Balance Pension Plan.

Supplemental Benefit. (a) Subject to the following provisions of this Article III and Section 7.1III, if the Officer has five or more years of Continuous SRP Employment, remains a full-time employee, remains employee and an Eligible Officer of the Company until his or her Normal Retirement Date, and subsequently Retires, the Officer shall receive a Supplemental Benefit equal to 5060% of the Officer’s 's Final Average Earnings, reduced by the sum of of: (i) the monthly benefits benefit payable to the Officer from all the Pension Plan; (ii) the monthly benefit payable to the Officer from the nonqualified Excess Retirement Plan; plus (iii) the monthly amount of the Pension PlansOfficer's Prior Employer Benefit. See Appendix B for Prior Employer Offset. The Supplemental Benefit shall be paid in equal monthly installments, commencing on the first day of the month following the Officer's retirement from the Company as both an Officer and an employee and continuing for the lifetime of the Officer, except as otherwise provided in Paragraph 3.3. (ba) For the purposes of Section 3.1(aSubparagraph (a), the amount of the Officer’s 's monthly benefit from each applicable the Pension Plan shall be determined as follows: (i) If the Officer receives a joint and survivor annuity from the Alliant Energy Cash Balance Pension Plan and the Officer’s 's Surviving Spouse is the joint annuitant, the Officer’s 's monthly benefit from that the Pension Plan shall be the monthly amount payable to the Officer under such joint and survivor annuity. (ii) If the Officer receives a single life annuity from the Alliant Energy Cash Balance Pension Plan, the Officer’s 's monthly benefit from that the Pension Plan shall be the monthly amount payable to the Officer under such single life annuity. (iii) If the Officer receives any other form of payment from a the Pension Plan, such other form of payment shall be converted to an actuarially equivalent single life annuity, using the actuarial assumptions then in use for such purpose under the Alliant Energy Cash Balance Pension Plan that would apply as of the Officer’s Separation from Service if the payment were from that Pension Plan, and the Officer’s 's monthly benefit from the Pension Plan shall be the monthly amount that would be payable to the Officer under such single life annuity. (iv) If a portion of the Officer’s 's benefits under any the Pension Plan has have been awarded to an Alternate Payee pursuant to a qualified domestic relations order, as defined in Code Section 414(p)) of the Internal Revenue Code, the Officer’s 's monthly benefit from that the Pension Plan shall be deemed to be the amount that would have been payable to the Officer if no such order had been entered. (v) The Officer’s 's monthly benefit from each the Pension Plan shall be determined as though it had commenced on the first day of the month following same date as the Officer’s Separation from Service's Supplemental Benefit, regardless of when the Officer’s 's Pension Plan benefit actually commences. If the Officer has not selected a form of payment from the Alliant Energy Cash Balance Pension Plan by that time, the form of payment shall be assumed to be a single life annuity. (vi) For Any increase in the portion monthly amount of any the Officer's Pension Plan that is a defined contribution account, benefit shall correspondingly reduce the applicable value monthly amount of the Pension Plan Officer's Supplemental Benefit unless the Board of Directors provides by resolution that the Supplemental Benefit shall not be determined as of the calendar month end which is one full month prior to the date of calculation hereunderso reduced. (cb) The Supplemental For the purposes of Subparagraph (a), the monthly amount of the Officer's Prior Employer Benefit shall be paid at the same time determined, and shall be included in the same form as the benefits the Officer is entitled to receive from the Pension Plans that are nonqualified deferred compensation arrangements. The applicable rules are as follows: (i) The form of payment shall be one of the following: (A) 216 monthly installments in the amount computation of the Supplemental Benefit; (B) a single lump sum that is , in the actuarially equivalent amount to the 216 monthly installments sole and absolute discretion of the Supplemental Benefit using the actuarial assumptions described in (iv) below; or (C) 5 annual installments, with the lump sum value in (B) above being deemed the initial account and 20% thereof being the first annual installment, with the remaining account balance being credited with deemed interest as if invested in the Interest Account Board of the Alliant Energy Deferred Compensation Plan and in each of the following four Januarys following the Officer’s Separation from Service additional payments being made of 25%, 33 1/3%, 50% and 100%, respectively, of the then-value of the remaining accountDirectors. (ii) The commencement of payment shall be the first day of the month following the Officer’s Separation from Service, provided, however, that all such payments otherwise due during the first 6 months following the Separation from Service shall be delayed, without any interest for the delayed payment, until the first day of the 7th month following the month in which the Officer’s Separation from Service occurs. (iii) On or before December 31, 2008, the Officer shall have the opportunity to elect which form of payment in Section 3.1(c)(i) above shall apply to the Officer. In the event of failure to make such an election on or before December 31, 2008, the default shall be 5 annual installments. Such election (or default) shall generally be irrevocable, provided, however that an Officer may change such payment form once (but only once) as follows: (A) in order to be valid, a new election must be made at least 12 months prior to the Officer’s Separation from Service; and (B) if a valid election is made pursuant to (A) above, the date of commencement of the new benefits shall be deferred, without any interest or actuarial adjustment, for 5 years from the date that would otherwise have applied (after application of the 6-month delay in Section 3.1(c)(ii)) pursuant to Section 3.1(c)(ii), provided, however, if the Officer’s death occurs during the 5-year deferral period, the remaining portion of any 5-year deferral period shall be waived and payment commenced pursuant to the applicable election. (iv) The lump sum payment amount provided under (i)(B) shall be determined using as the discount rate the 12-month average of 10-year Treasury Yields (meaning Federal Reserve U.S. Treasury ten-year actively traded securities) in effect as of the beginning of the calendar year in which the lump sum benefit is paid. The mortality table shall be the same table as then in use for determining lump sums under the Alliant Energy Cash Balance Pension Plan.

Supplemental Benefit. (a) Subject to the following provisions of this Article III and Section 7.1III, if the Officer remains a full-time employee, has five or more years of Continuous SRP EmploymentEmployement as an Officer, remains a full-time employee, and remains an Eligible Officer of the Company until his or her Normal Retirement Date, and subsequently Retires, the Officer shall receive a Supplemental Benefit equal to 50% of the Officer’s 's Final Average Earnings, reduced by the sum of of: (i) the monthly benefits benefit payable to the Officer from all the Pension Plan; (ii) the monthly benefit payable to the Officer from the nonqualified Excess Retirement Plan; plus (iii) the monthly amount of the Pension PlansOfficer's Prior Employer Benefit. The Supplemental Benefit shall be paid in (i) equal monthly installments, commencing on the first day of the month following the Officer's retirement from the Company as both an Officer and an employee and ending when 216 monthly payments have been made to the Officer -, (ii) an immediate single lump sum, or (iii) a single lump sum deferred in accordance with the provisions of the Alliant Energy Key Employee Deferred Compensation Plan ("KEDCP"). The Officer must indicate the desired form of payment by submitting a distribution election form to [insert contact for completed election forms] at least 12 months before his or her expected benefit commencement date. If no election is on file, the default election is the monthly installment option described in (i) above. If the Officer elects to defer his or her benefit as described in (iii) above, the benefit will be considered eligible compensation for participant deferrals (according to Article 4.1 of the KEDCP) and the provisions and procedures set forth in the KEDCP will apply regarding participant elections, investment options, and election for payment of benefits [currently requires 24 months for election change to be valid]. (ba) For the purposes of Section 3.1(aSubparagraph (a), the amount of the Officer’s 's monthly benefit from each applicable the Pension Plan shall be determined as follows: (i) If the Officer receives a joint and survivor annuity from the Alliant Energy Cash Balance Pension Plan and the Officer’s 's Surviving Spouse is the joint annuitant, the Officer’s 's monthly benefit from that the Pension Plan shall be the monthly amount payable to the Officer under such joint and survivor annuity. (ii) If the Officer receives a single life annuity from the Alliant Energy Cash Balance Pension Plan, the Officer’s 's monthly benefit from that the Pension Plan shall be the monthly amount payable to the Officer under such single life annuity. (iii) If the Officer receives any other form of payment from a the Pension Plan, such other form of payment shall be converted to an actuarially equivalent single life annuity, using the actuarial assumptions then in use for such purpose under the Alliant Energy Cash Balance Pension Plan that would apply as of the Officer’s Separation from Service if the payment were from that Pension Plan, and the Officer’s 's monthly benefit from the Pension Plan shall be the monthly amount that would be payable to the Officer under such single life annuity. (iv) If a portion of the Officer’s 's benefits under any the Pension Plan has have been awarded to an Alternate Payee pursuant to a qualified domestic relations order, as defined in Code Section 414(p)) of the Internal Revenue Code, the Officer’s 's monthly benefit from that the Pension Plan shall be deemed to be the amount that would have been payable to the Officer if no such order had been entered. (v) The Officer’s 's monthly benefit from each the Pension Plan shall be determined as though it had commenced on the first day of the month following same date as the Officer’s Separation from Service's Supplemental Benefit, regardless of when the Officer’s 's Pension Plan benefit actually commences. If the Officer has not selected a form of payment from the Alliant Energy Cash Balance Pension Plan by that time, the form of payment shall be assumed to be a single life annuity. (vi) Any increase in the monthly amount of the Officer's Pension Plan benefit shall correspondingly reduce the monthly amount of the Officer's Supplemental Benefit unless the Board of Directors provides by resolution that the Supplemental Benefit shall not be so reduced. (b) For the portion purposes of any Pension Plan that is a defined contribution accountSubparagraph (a), the applicable value monthly amount of the Pension Plan Officer's Prior Employer Benefit shall be determined as determined, and shall be included in the computation of the calendar month end which is one full month prior to Supplemental Benefit, in the date sole and absolute discretion of calculation hereunderthe Board of Directors. (c) The Supplemental Benefit shall be paid at the same time and in the same form as the benefits the Officer is entitled to receive from the Pension Plans that are nonqualified deferred compensation arrangements. The applicable rules are as follows: (i) The form of payment shall be one of the following: (A) 216 monthly installments in the amount of the Supplemental Benefit; (B) a single lump sum that is the actuarially equivalent amount to the 216 monthly installments of the Supplemental Benefit using the actuarial assumptions described in (iv) below; or (C) 5 annual installments, with the lump sum value in (B) above being deemed the initial account and 20% thereof being the first annual installment, with the remaining account balance being credited with deemed interest as if invested in the Interest Account of the Alliant Energy Deferred Compensation Plan and in each of the following four Januarys following the Officer’s Separation from Service additional payments being made of 25%, 33 1/3%, 50% and 100%, respectively, of the then-value of the remaining account. (ii) The commencement of payment shall be the first day of the month following the Officer’s Separation from Service, provided, however, that all such payments otherwise due during the first 6 months following the Separation from Service shall be delayed, without any interest for the delayed payment, until the first day of the 7th month following the month in which the Officer’s Separation from Service occurs. (iii) On or before December 31, 2008, the Officer shall have the opportunity to elect which form of payment in Section 3.1(c)(i) above shall apply to the Officer. In the event of failure to make such an election on or before December 31, 2008, the default shall be 5 annual installments. Such election (or default) shall generally be irrevocable, provided, however that an Officer may change such payment form once (but only once) as follows: (A) in order to be valid, a new election must be made at least 12 months prior to the Officer’s Separation from Service; and (B) if a valid election is made pursuant to (A) above, the date of commencement of the new benefits shall be deferred, without any interest or actuarial adjustment, for 5 years from the date that would otherwise have applied (after application of the 6-month delay in Section 3.1(c)(ii)) pursuant to Section 3.1(c)(ii), provided, however, if the Officer’s death occurs during the 5-year deferral period, the remaining portion of any 5-year deferral period shall be waived and payment commenced pursuant to the applicable election. (iv) The lump sum payment amount provided under (i)(B) this Section shall be determined by converting the monthly installment benefit described in this Section into an actuarially equivalent lump-sum value, using as the SRP lump-sum discount rate rate, which will be based on the lessor of (i) the 12-month average of 10-year Treasury Yields (meaning Federal Reserve U.S. Treasury ten-year actively traded securities) in effect as of the beginning of the calendar fiscal year in which the lump sum benefit is paidcommences or (ii) the FAS interest rate in effect as of the beginning of the fiscal year in which the lump sum benefit commences. The mortality table shall be the same table as then in use for determining lump sums under the Alliant Energy Cash Balance Pension Plan. The Board of Directors, however, reserve the right to modify this rate for eligible executives at its discretion, provided that the Board shall give 12 months' notice before increasing the discount rate (thereby giving Officers the opportunity to make new distribution elections should they so choose).