2015 Triennial Review of
Nuclear Decommissioning Trusts and Costs
Every 3 years the CPUC reviews the investor owned utilities'
proposed costs required for decommissioning California’s nuclear power plants.
On March 1, 2016, PG&E filed its Application
for its Nuclear Decommissioning Cost Triennial proceeding, seeking CPUC approval for:
Diablo Canyon Trusts
million annual revenue requirement ($0 authorized in 2012 Triennial Review)
Diablo Canyon decommissioning cost estimate by $1.3 billion to an updated total of $3.78
Humboldt Bay Operating Costs & Trusts
million annual revenue requirement (reduced from $96.3 million approved in the 2012
operating costs of about $4.5 million
$531.3 million to complete the remaining decommissioning work (as of Dec 2014)
- PG&E estimates that the
total cost to complete Humboldt Bay decommissioning is now $1.055 billion, an
increase of $77.1 million over the 2012 authorized estimate of $977.9 Million
On July 15, 2016, the CPUC
issued a Ruling
setting the Scope of the proceeding to included, among other things, the
reasonableness of PG&E’s proposed costs. The CPUC subsequently issued a Ruling
with a revised proceeding schedule.
PG&E will issue Rebuttal Testimony to parties on September
Evidentiary Hearings are scheduled at the CPUC for September
19 - 23, 2016.
ORA made an in-depth review of PG&E’s application regarding Humboldt Bay #3 and Diablo Canyon power plants and finds that the most recent decommissioning trust fund balances should be used when calculating ratepayer contributions to the trust funds. ORA recommends $175.3 million in revenue requirements for Humboldt Bay and Diablo Canyon, as opposed the PG&E’s request of $184.7 million.
- Humboldt Bay #3: ORA does not oppose PG&E’s updated decommissioning cost estimate, 2017-2019 O&M forecasts, 2013-2015 O&M reasonableness or the reasonableness of completed decommissioning projects.
- Diablo Canyon: The estimated overall contingency for the decommissioning cost estimate should be reduced from 25% to 17.4%. Additional funding for breakwater disposition based on PG&E’s new assumptions should not be approved at this time.
ORA continues to be interested in the timing of the U.S.
Department of Energy’s spent nuclear fuel acceptance.
ORA asserts evidentiary hearings are necessary in
order for the CPUC to make a full review of PG&E’s proposal.
April 25, 2016 Testimony providing it detailed analysis of PG&E's Application.
April 4, 2016 Protest
to PG&E’s Application.
See the Proceeding
Here you can find a
full record of the case, as well as subscribe to proceeding updates.
Nuclear Decommissioning Webpage
Nuclear Regulatory Commission’s Diablo Canyon Unit 1 Webpage
U.S. Nuclear Regulatory Commission’s Diablo Canyon Unit 2 Webpage