LEGO 9668 Energy Display is a Education set currently valued at $136 for new and sealed sets. Annual appreciation has averaged 5.15% since release. Used copies are valued between $109 and $124 depending on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Energy Display since June 2016. Very high accuracy
LEGO 9668 Energy Display is an Education Mindstorms set released in 2010, containing 1 piece. It is an electronic display module that shows energy storage in joules and measures input and output in volts, watts, and amps. Designed for LEGO Education power and renewable energy experiments, it interfaces with compatible LEGO generators, solar panels, and power sources to monitor electrical performance. The set consists of a light bluish gray Electric Energy Display element.

A new and sealed Energy Display is currently valued at around $136, with annual growth of approximately 5%, which is higher than other Mindstorms sets. The average used price is $113 for those in good overall condition. Based on current trends, this set could be valued near $143 within the next year.

For Sale (New/Sealed)

(US) Energy Display 9668
BrickEconomy Choice
$133.95
(US) Amazon listing for Energy Display $142.82
+5.0%

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 9668 Energy Display.

Sets in Education / Mindstorms

45570 Space Challenge Set

Theme / Subtheme Education / Mindstorms
Year 2014
Pieces 1,417
Availability Retired
45570 LEGO Education Mindstorms Space Challenge Set
Retail $254.95
Value $467.67
Growth  +83.4%
Annual growth 5.4%

9594 Green City Challenge Set

Theme / Subtheme Education / Mindstorms
Year 2011
Pieces / Minifigs 1,365 / 1
Availability Retired
9594 LEGO Education Mindstorms Green City Challenge Set
Retail $245.99
Value $250.40
Growth  +1.8%
Annual growth 1.0%

45560 Education EV3 Expansion Set

Theme / Subtheme Education / Mindstorms
Year 2013
Pieces 853
Availability Retired
45560 LEGO Mindstorms Education EV3 Expansion Set
Retail $99.95
Value $180.00
Growth  +80.1%
Annual growth 3.6%

9793 Team Challenge Set with Serial Transmitter

Theme / Subtheme Education / Mindstorms
Year 2003
Pieces 833
Availability Retired
9793 LEGO Education Mindstorms Team Challenge Set with Serial Transmitter
Retail $199.99
Value $221.48
Growth  +10.7%

9794 Team Challenge Set with USB Transmitter

Theme / Subtheme Education / Mindstorms
Year 2003
Pieces 831
Availability Retired
9794 LEGO Education Mindstorms Team Challenge Set with USB Transmitter
Retail $199.99
Value $202.71
Growth  +1.4%

9695 LEGO Mindstorms Education Resource

Theme / Subtheme Education / Mindstorms
Year 2010
Pieces 821
Availability Retired
9695 LEGO Mindstorms Education Resource
Retail $99.95
Value $337.86
Growth  +238.0%
Annual growth 5.2%

9790 ROBOLAB Team Challenge Set

Theme / Subtheme Education / Mindstorms
Year 1999
Pieces 725
Availability Retired
9790 LEGO Education Mindstorms ROBOLAB Team Challenge Set
Retail $199.99
Value $215.85
Growth  +7.9%

45544 Education EV3 Core Set

Theme / Subtheme Education / Mindstorms
Year 2013
Pieces 541
Availability Retired
45544 LEGO Mindstorms Education EV3 Core Set
Retail $339.95
Value $529.96
Growth  +55.9%
Annual growth 4.3%

9785 Robo Technology Set with Serial Transmitter

Theme / Subtheme Education / Mindstorms
Year 2003
Pieces 219
Availability Retired
9785 LEGO Education Mindstorms Robo Technology Set with Serial Transmitter
Retail $149.99
Value $335.15
Growth  +123.4%
Annual growth 3.6%

9786 Robo Technology Set with USB Transmitter

Theme / Subtheme Education / Mindstorms
Year 2003
Pieces 217
Availability Retired
9786 LEGO Education Mindstorms Robo Technology Set with USB Transmitter
Retail $149.99
Value $265.86
Growth  +77.3%
Annual growth 2.5%

5003246 EV3 Track Rubber Elements

Theme / Subtheme Education / Mindstorms
Year 2015
Pieces 30
Availability Retired
5003246 LEGO Education Mindstorms EV3 Track Rubber Elements
Retail $19.99
Value $21.55
Growth  +7.8%

2000704 Mindstorms Education LME Replacement Pack 5

Theme / Subtheme Education / Mindstorms
Year 2015
Pieces 24
Availability Retired
2000704 LEGO Mindstorms Education LME Replacement Pack 5
Retail $12.95
Value $13.90
Growth  +7.3%
Annual growth 1.3%

45514 Cable Pack

Theme / Subtheme Education / Mindstorms
Year 2013
Pieces 7
Availability Retired
45514 LEGO Education Mindstorms Cable Pack
Retail $14.99
Value $21.23
Growth  +41.6%
Annual growth 2.7%

9581 LEGO USB Hub

Theme / Subtheme Education / Mindstorms
Year 2009
Pieces 1
Availability Retired
9581 Education Mindstorms LEGO USB Hub
Retail $44.99
Value $49.80
Growth  +10.7%
Annual growth 1.8%

9583 Motion Sensor

Theme / Subtheme Education / Mindstorms
Year 2009
Pieces 1
Availability Retired
9583 LEGO Education Mindstorms Motion Sensor
Retail $19.99
Value $22.83
Growth  +14.2%
Annual growth 4.0%

9584 Tilt Sensor

Theme / Subtheme Education / Mindstorms
Year 2009
Pieces 1
Availability Retired
9584 LEGO Education Mindstorms Tilt Sensor
Retail $19.99
Value $22.02
Growth  +10.2%
Annual growth 5.4%

9667 LEGO Solar Panel

Theme / Subtheme Education / Mindstorms
Year 2010
Pieces 1
Availability Retired
9667 Education Mindstorms LEGO Solar Panel
Retail $39.99
Value $54.87
Growth  +37.2%
Annual growth 6.0%

9669 Energy Storage

Theme / Subtheme Education / Mindstorms
Year 2010
Pieces 1
Availability Retired
9669 LEGO Education Mindstorms Energy Storage
Retail $29.99
Value $35.86
Growth  +19.6%
Annual growth 1.6%

9670 E-Motor

Theme / Subtheme Education / Mindstorms
Year 2010
Pieces 1
Availability Retired
9670 LEGO Education Mindstorms E-Motor
Retail $27.95
Value $39.34
Growth  +40.8%
Annual growth 2.5%

9917 DCP Sensor Connector Cable

Theme / Subtheme Education / Mindstorms
Year 2000
Pieces 1
Availability Retired
9917 LEGO Education Mindstorms DCP Sensor Connector Cable
Retail $59.00
Value $66.09
Growth  +12.0%

2005544 Education EV3 Design Engineering Projects

Theme / Subtheme Education / Mindstorms
Year 2016
Availability Retired
2005544 LEGO Mindstorms Education EV3 Design Engineering Projects
Retail $149.99
Value $270.01
Growth  +80.0%
Annual growth 6.1%

45501 DC Rechargeable Battery

Theme / Subtheme Education / Mindstorms
Year 2013
Availability Retired
45501 LEGO Education Mindstorms DC Rechargeable Battery
Retail $84.99
Value $133.99
Growth  +57.7%
Annual growth 3.5%

45515 Bluetooth Dongle

Theme / Subtheme Education / Mindstorms
Year 2013
Availability Retired
45515 LEGO Education Mindstorms Bluetooth Dongle
Retail $29.99
Value $30.00
Growth  +0.0%

45516 WiFi Dongle

Theme / Subtheme Education / Mindstorms
Year 2013
Availability Retired
45516 LEGO Education Mindstorms WiFi Dongle
Retail $29.99
Value $30.00
Growth  +0.0%
This element displays energy storage level in joules and input and output in volts, watts, and amps. Combine with Energy Storage (9669) to form the LEGO® Energy Meter.
Description provided by LEGO©