Low Income Oversight
Board
2nd Generation Smart Power
Strip Overview
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The Issue - Growing Plug Load
“Plug loads for household electronics account for 15-19% of residential energy use and are
increasing as more households purchase more electronics” - California Energy Commission PIER
“Energy Star labeling of electronic products with lower standby power levels. But public
policies and programs have paid insufficient attention to active-mode energy use because
of a lack of detailed information about the quantity and types of devices and use patterns in
the home.” - California Energy Commission PIER
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Low Income, High TV Penetration
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Increasing Plug Load
As the CFL savings values drop and becoming harder to capture and LED in its infancy, plug
load is another cost effective efficiency area to help reach demanding kWh reduction
targets.
• Larger TVs that consume more energy are less expensive
• Creating demand with unique features encourages early
upgrade/replacement (Smart TV, 3D TV, thinner designs, LED, Ultra HD,
etc.)
• Ultra HD TV’s are 30% more energy intensive than Standard HD
• TV manufacturers are not alone, new PS4, Xbox One, Wii U, smart
BluRay players, media streamers, etc.
• This is creating “The Refrigerator Syndrome” where the existing units
will get handed down, added to additional rooms, creating more overall
plug load
• Adding more TVs and devices to more rooms means more peripherals
shuffled around further increasing household plug load
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Targeted Areas
As the Net to Gross value for CFLs continues to drop and LED is too becoming
challenging, addressing plug load is the next cost effective efficiency area to help reach
kWh reduction targets.
Consumer electronics waste power in
two distinct ways:
– Passive standby where power is
used by the product to keep it ready
to switch on (vampire/phantom)
– Active Power Wastage where the
product is on but not performing its
main function (e.g. TV is on but is
not being watched)
An ideal efficiency approach would
target both types of waste.
Active power wastage
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Overview - Tier 1 APS
• First Generation Advanced Power Strips (APS) are a master
control device that reduce standby power
• Benefits of Tier 1 APS
• Inexpensive
• Save only 26 kWh annually if installed and used correctly
• Good for proactive energy savers who don’t mind
inconvenience
• Issues with Tier 1 APS
• Only saves 4% of overall AV energy usage
• Only saves energy if someone takes action
• Not intuitive, many must be manually adjusted
by the user
• AV equipment usage now inconvenient
• High de-installation rate
• There are additional well known issues also
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Embertec Addressing Plug Load
• Have been working with the CA IOU’s for last 4 years to
evaluate Tier 2 Advanced Power Strips (APS)
• Participated in the idea 365 program to introduce Tier 2 APS to
CA market
• CEC funded CalPlug has undertaken an assessment on Tier 2
APS technologies
• Millions of Tier 2 APS have been deployed already – however
not yet in CA.
• Bonneville Power Authority has approved Tier 2 APS based on
trials conducted under the direction of CA IOU’s in CA homes..
• Canadian Utilities also installing Tier 2 APS in their energy
efficiency programs based on CA field trial data
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Overview – Tier 2 APS
2nd Generation Advanced Power Strips utilize advanced
controls-micro processor with greater automation
Benefits:
•
•
•
•
Address both Active and Passive Standby waste
Automated savings/Automatic adjustment
Saves up to 48-53% of total AV area energy usage
Real world CA field trials:
• CalPlug Assessed 346 kWh , 300 kWh BPA Deemed
• Real world proven savings (millions installed to date)
• Low cost per kWh saved - $0.20/kWh for Tier 2 compared
with $1.15/kWh for Tier 1 APS.
• Tier 2 APS 6 times more cost effective and over 11 times the energy
savings over Tier 1 APS.
• No workaround to operate AV equipment required
• Proven high retention rate
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Tier 1 & Tier 2 AV Energy Savings Comparison
Source: Northeast Energy Partners (NEEP)
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SDG&E Field Trial
• Residential and Commercial Tier 2 APS field trial
recently completed
• All CA IOU’s are aware of and awaiting the final
work-paper both from SDG&E and the CalTF
• Preliminary findings are directly in-line with
CalPlug work-paper.
• 50% energy reduction in AV environments
• Around 300kWh annual savings in Residential and
Commercial environments
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Low Income Applicability
• Easier to use than Tier 1 APS
• Current ESA Program Performance:
– 350 Annual kWh savings with Tier 1 APS
– $1,170 per home (including thermo savings)
• Inclusion of Tier 2 APS in ESA program will deliver:
– 625 Annual kWh savings with Tier 2 APS
– $1,198 per home (including thermo savings)
• An additional 2.3% expenditure per Low Income home will almost
double the current ESA program kWh savings.
• On average two Tier 2 APS devices per home are applicable:
– $1258 per home will deliver – 925 kWh savings annually
– To put simply the ESA program could move from $3.34/kWh saved to
$1.36/kWh saved.
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Low Income Inclusion Challenges
• Even with previously reported (CalPlug) metrics some IOU’s
are claiming Tier 2 APS is less cost effective than Tier 1 APS…
• Discussion with the CPUC and an assessment using the E3
calculators of all 3 IOU’s has demonstrated that Tier 2 APS are
clearly a much more cost effective measure than Tier 1 APS
• The longer it takes to migrate to more efficient APS
technology, the greater the ongoing disadvantage to Low
Income residents who are losing kWh reduction
opportunities through the adoption of Tier 1 APS.
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Further Value from Tier 2 APS
• Tier 2 APS can today also be offered with cost
effective communications capabilities which will
provide:
– Smartphone interface presenting greater value proposition
to householders
– Ability to verify Tier 2 APS installation automatically
– Ability to verify Tier 2 APS retention rates automatically
– Interface with the IOU to communicate grid constraints or
time of use tariff information to the householder
– A platform towards additional energy efficiency and
control capabilities that will assist in addressing the
energy/water nexus
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Proposed Next Steps
• Present the final findings from the SDG&E Field Trial
for residential Tier 2 APS application
• Further discussion with representatives of the LIOB
to discuss the steps towards inclusion of Tier 2 APS
within the ESA program
• To provide a detailed overview (by IOU) on the stated
barriers preventing the inclusion of Tier 2 APS
Tier 2 APS is an activity which is currently being deployed in
other parts of North America with millions deployed in
overseas energy efficiency programs since 2011.
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