On February 13, John Farrell participated in a debate on the value of small-scale distributed generation at the annual meeting of the National Association of Regulatory Utility Commissioners (NARUC) in Washington, D.C. with a utility-scale renewable energy booster named Brian Potts.
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February 2017 - NARUC Debate on Distributed Generation
1. IS BIGGER
BETTER?
Surprising findings on the economies of scale of solar energy
John Farrell, Director of Energy Democracy,
Institute for Local Self-Reliance
2. SO LA R ECO N O M IES O F SCA LE
Costofelectricity
0.0¢
2.0¢
4.0¢
6.0¢
8.0¢
10.0¢
12.0¢
14.0¢
Residential ≤10 10-20 20-50 50-100 100-250 250-500 500-1000 5-10 MW 10 to
20 MW
20 to
100 MW
100 to
1,000 MW
Estimated levelized cost of electricity based on reported 2015 costs*
kilowatts megawatts
Sources: Tracking the Sun IX and Utility-Scale Solar 2015
(SunShot, Berkeley Labs); SAM (NREL); ILSR
DOES NOT INCLUDE COST OF DELIVERY
3. Costofelectricity
0.0¢
2.0¢
4.0¢
6.0¢
8.0¢
10.0¢
12.0¢
14.0¢
Residential ≤10 10-20 20-50 50-100 100-250 250-500 500-1000 5-10 MW 10 to
20 MW
20 to
100 MW
100 to
1,000 MW
SO LA R CO M PETES AT M O ST SIZES
kilowatts megawatts
Sources: Tracking the Sun IX and Utility-Scale Solar 2015
(SunShot, Berkeley Labs); EIA (2014 data); CPUC (2011); NYMEX (2016); ILSR
DOES NOT INCLUDE COST OF DELIVERY
Residential
retail price
Commercial
retail price
Industrial
retail price Calif. Market Price Referent
Price of competition
Price advantage
Estimated levelized cost of electricity based on reported 2015 costs*
4. SO LA R ECO N O M IES O F SCA LE
InstalledCost
$0.00
$1.10
$2.20
$3.30
$4.40
Residential ≤10 10-20 20-50 50-100 100-250 250-500 500-1000 5-10 MW 10 to
20 MW
20 to
100 MW
100 to
1,000 MW
Median reported installed costs 2015*
kilowatts megawatts
Sources: Tracking the Sun IX and Utility-Scale Solar 2015
(SunShot, Berkeley Labs)
DOES NOT INCLUDE COST OF DELIVERY
*Utility-scale figures reported in $ per AC-watt and
are adjusted down 10%
SM A LL SO LA R
PRI CES I N
G ERM A N Y BEAT
A N Y SO LA R
PRI CE I N U. S.
5. Rooftop shading lowers peak electric load
Credit: Flickr user 64MM
Anthony Dominguez, et al. (UCSD) - http://bit.ly/2kzx69N
10. -20.0%
-15.0%
-10.0%
-5.0%
0.0%
Earnings impact Equity return impact
-8%-15% -3%-8%
Southwest Utility
Northeast Utility
BO TTO M LIN E of 10% customer-owned solar
Significant impact
for utility earnings
Source: Berkeley Labs, 2014
11.
12. “ There is one
great advantage
that must follow
regulation, and
that advantage is
protection"