# LEGO 9681-1 — eLAB Renewable Energy Set (1999)

Source: https://www.brickmissing.com/sets/9681-1-elab-renewable-energy-set
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

The LEGO eLAB Renewable Energy Set (9681-1) invites builders to investigate renewable energy sources, building upon themes from the Energy Work Power Starter Set. Explore the capabilities of solar, wind, and water power through construction and experimentation. A central component is the LEGO Solar Cell, which harnesses sun energy to drive models such as a Ferris wheel or a car. Alternatively, construct a windmill or a watermill to observe wind or water power in action. The set includes a motor and two sorting trays, facilitating organized assembly. With instructions for seven distinct models, this eLAB set provides multiple avenues for understanding sustainable energy applications.

## Set facts

- Set number: 9681-1
- Name: eLAB Renewable Energy Set
- Theme: Technic
- Released: 1999
- Pieces: 713
- Distinct part + colour lots: 98
- Build difficulty: intermediate
- Repairability: 1.0% of this set's lots are hard to replace (1 of 98 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (98 lots, 713 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 1 | String Cord Medium Thickness 100cm | Black | 14728c100 | 4500573 | — |
| 1 | Solar Cell / Panel | Light Bluish Gray | 22578c01 | 4125481 | — |
| 4 | Tyre 30 x 10.5 Offset Tread | Black | 2346 | 234626 | — |
| 4 | Tile 1 x 4 with Groove | Light Bluish Gray | 2431 | 243128 | €0,12 |
| 8 | Brick Special 1 x 2 with Pin | Dark Gray | 2458 | 245827 | — |
| 4 | Brick Special 1 x 4 with Groove | Black | 2653 | 265326 | €0,19 |
| 44 | Technic Pin with Friction Ridges Lengthwise and Center Slots | Black | 2780 | 278026 | — |
| 2 | Technic Wedge Belt Wheel Tire | Black | 2815 | 6028041 | €0,38 |
| 2 | Technic Beam 1 x 4 Thin with Stud Connector | Light Gray | 2825 | 282502 | — |
| 2 | Technic Engine Crankshaft Center | Light Gray | 2854 | 285402 | — |
| 4 | Tyre 81.6 x 15 Motorcycle | Black | 2902 | 290226 | — |
| 4 | Wheel 61.6 x 13.6 Motorcycle | White | 2903 | 290301 | — |
| 4 | Technic Beam Triangle Thin [Type I] | Light Gray | 2905 | 290502 | — |
| 2 | Brick Special 2 x 2 with 2 Pins and Axle Hole | Dark Gray | 30000 | 3000027 | — |
| 2 | Brick 2 x 4 | Light Bluish Gray | 3001 | 4106356 | €0,22 |
| 4 | Brick 2 x 4 | Red | 3001 | 300121 | €0,22 |
| 4 | Plate 2 x 2 | Black | 3022 | 302226 | €0,10 |
| 20 | Plate 1 x 2 | Black | 3023 | 302326 | €0,08 |
| 2 | Plate 4 x 4 | Black | 3031 | 4243819 | €0,21 |
| 5 | Tile 1 x 2 with Groove | Red | 3069b | 306921 | €0,07 |
| 5 | Tile 1 x 2 with Groove | Black | 3069b | 306926 | €0,07 |
| 1 | Hook, Plate 1 x 2 with Crane Hook Left | Light Gray | 3127 | 312702 | — |
| 1 | Plate Special 3 x 2 with Rounded End, Hole | Black | 3176 | 317626 | €0,12 |
| 6 | Technic Plate 2 x 6 [5 Holes] | Black | 32001 | 3200126 | €0,24 |
| 26 | Technic Pin 3/4 | Dark Gray | 32002 | 4109854 | — |
| 1 | Technic Reel 3 x 2 | Black | 32012 | 4107179 | — |
| 6 | Technic Axle and Pin Connector Angled #1 | Black | 32013 | 6332570 | €0,08 |
| 5 | Technic Axle and Pin Connector Angled #6 - 90° | Black | 32014 | 4112205 | — |
| 4 | Technic Axle and Pin Connector Angled #5 - 112.5° | Light Gray | 32015 | 4106378 | — |
| 4 | Technic Axle and Pin Connector Angled #3 - 157.5? | Black | 32016 | 6261397 | €0,13 |
| 5 | Technic Beam 1 x 5 Thin | Light Gray | 32017 | 4106885 | — |
| 4 | Plate Special 1 x 2 with Door Rail | Light Gray | 32028 | 4109642 | — |
| 4 | Technic Axle and Pin Connector Angled #2 - 180° | Light Gray | 32034 | 4107830 | — |
| 6 | Technic Axle Connector with Axle Hole | Light Gray | 32039 | 4106469 | — |
| 12 | Technic Axle 2 Notched | Black | 32062 | 4109810 | €0,07 |
| 6 | Technic Axle 5 | Black | 32073 | 4114740 | — |
| 24 | Technic Bush 1/2 Smooth with Axle Hole Reduced | Tan | 32123a | 4206210 | — |
| 4 | Technic Pin Double with Axle Hole | Black | 32138 | 4119589 | — |
| 10 | Wheel with Split Axle hole | Yellow | 3482 | 348224 | — |
| 2 | Tyre Offset Tread 24 x 8 | Black | 3483 | 348326 | — |
| 2 | Tyre 43 x 17 | Black | 3634 | 363426 | — |
| 2 | Technic Gear 8 Tooth | Light Gray | 3647 | 364702 | — |
| 6 | Technic Gear 24 Tooth [New Style with Single Axle Hole] | Light Gray | 3648b | 364802 | — |
| 3 | Technic Gear 40 Tooth | Light Gray | 3649 | 364902 | — |
| 1 | Technic Gear 24 Tooth Crown with Reinforcements [New Style] | Light Gray | 3650c | 365002 | — |
| 6 | Plate 1 x 6 | Black | 3666 | 366626 | €0,17 |
| 36 | Technic Pin without Friction Ridges Lengthwise | Light Gray | 3673 | 367302 | — |
| 4 | Technic Brick 1 x 2 [1 Pin Hole] | Yellow | 3700 | 370024 | €0,12 |
| 16 | Technic Brick 1 x 2 [1 Pin Hole] | Red | 3700 | 370021 | €0,12 |
| 4 | Technic Brick 1 x 4 [3 Pin Holes] | Red | 3701 | 370121 | €0,17 |
| 4 | Technic Brick 1 x 4 [3 Pin Holes] | Yellow | 3701 | 370124 | €0,17 |
| 2 | Technic Brick 1 x 8 [7 Pin Holes] | Yellow | 3702 | 370224 | €0,36 |
| 14 | Technic Brick 1 x 8 [7 Pin Holes] | Red | 3702 | 370221 | €0,36 |
| 14 | Technic Brick 1 x 16 [15 Pin Holes] | Red | 3703 | 370321 | €0,82 |
| 2 | Technic Brick 1 x 16 [15 Pin Holes] | Yellow | 3703 | 370324 | — |
| 6 | Technic Axle 4 | Black | 3705 | 370526 | €0,08 |
| 6 | Technic Axle 6 | Black | 3706 | 370626 | €0,12 |
| 7 | Technic Axle 8 | Black | 3707 | 370726 | €0,22 |
| 6 | Technic Axle 12 | Black | 3708 | 370826 | €0,27 |
| 10 | Technic Plate 2 x 4 [3 Holes] | Black | 3709 | 370926 | €0,13 |
| 16 | Plate 1 x 4 | Black | 3710 | 371026 | €0,12 |
| 2 | Plate 1 x 4 | Light Bluish Gray | 3710 | 371028 | €0,12 |
| 72 | Technic Link | Black | 3711a | 371126 | — |
| 60 | Technic Bush | Light Gray | 3713 | 371302 | — |
| 1 | Technic Steering Pulley Large | Light Gray | 3736 | 373602 | — |
| 6 | Technic Axle 10 | Black | 3737 | 373726 | €0,25 |
| 4 | Technic Plate 2 x 8 [7 Holes] | Black | 3738 | 373826 | €0,29 |
| 32 | Technic Axle Pin without Friction Ridges Lengthwise | Light Gray | 3749 | 374902 | — |
| 2 | Plate 2 x 10 | Black | 3832 | 383226 | €0,29 |
| 1 | Baseplate 16 x 32 | Light Gray | 3857 | 274802 | — |
| 2 | Technic Brick 1 x 6 [5 Pin Holes] | Yellow | 3894 | 389424 | €0,29 |
| 4 | Technic Brick 1 x 6 [5 Pin Holes] | Red | 3894 | 389421 | €0,29 |
| 4 | Technic Brick 1 x 12 [11 Pin Holes] | Red | 3895 | 389521 | €0,54 |
| 4 | Technic Brick 1 x 12 [11 Pin Holes] | Yellow | 3895 | 389524 | — |
| 4 | Seat / Chair 2 x 2 | Tan | 4079 | 6219785 | €0,19 |
| 4 | Tipper Bed 4 x 6, Open Studs | Yellow | 4080 | 408024 | — |
| 4 | Tile 1 x 8 with Groove | Black | 4162 | 416226 | €0,15 |
| 2 | Technic Wedge Belt Wheel [aka Pulley] | Light Gray | 4185 | 4100502 | — |
| 12 | Technic Pin 1/2 | Light Gray | 4274 | 427402 | — |
| 6 | Technic Axle 3 | Black | 4519 | 451926 | — |
| 1 | Wire with Brick 2 x 2 x 2/3 Pair, 20L | Black | 5306bc020 | 4100355 | — |
| 1 | Wire with Brick 2 x 2 x 2/3 Pair, 36L | Black | 5306bc036 | 75652 | — |
| 2 | Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole | Dark Gray | 6222 | 4114075 | — |
| 6 | Technic Axle and Pin Connector Perpendicular | Light Gray | 6536 | 4173667 | — |
| 6 | Technic Axle Connector Ridged [with x Hole x Orientation] | Light Gray | 6538b | 4100408 | — |
| 6 | Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) | Light Gray | 6553 | 655302 | — |
| 10 | Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots | Black | 6558 | 655826 | — |
| 2 | Technic Cam | Light Gray | 6575 | 657502 | — |
| 6 | Technic Axle 3 with Stud | Dark Gray | 6587 | 4113884 | — |
| 6 | Technic Beam 1 x 3 Thin | Light Gray | 6632 | 4107825 | — |
| 5 | Rubber Band Medium (Square Cross Section) Thin Cut | Black | 70012 | 70012 | — |
| 4 | Sail, Triangular, 15 x 22 with Blue Thin Stripes Print | White | 71308pr0001 | 4100347 | — |
| 1 | Motor, 9V Mini [Old Style] | Light Gray | 71427c01 | 4107786 | — |
| 1 | Brick Special 2 x 6 x 2 Weight with Sealed Bottom and Dimples on Ends | Black | 73090b | 6094053 | — |
| 1 | Hair, Smooth | Black | 3901 | 390126 | €0,29 |
| 1 | Torso Jacket with Zipper and 3 Pockets Print, Blue Arms, Yellow Hands | Black | 973c28h01pr1245 | 4288269 | — |
| 1 | Hips and White Legs | White | 970c27 | 9327 | €0,63 |
| 1 | Minifig Head, Black Sunglasses and Standard Grin Print [Blocked Open Stud] | Yellow | 3626bpr0006 | — | — |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/9681-1-elab-renewable-energy-set
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/9681-1-elab-renewable-energy-set