Community price on backpack.tf: 34.0–35.0 keys, last changed 2017-10-04 (8.9y ago). The live quote above, 49.3 keys, is 45% higher and last moved 11h ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Steam Market asking price: $160.89 — the lowest of one listing for the Green Energy effect when we looked on 2026-09-01 01:40 UTC (5d ago). This is what a seller is asking, not what anything sold for. Steam pays out in Steam wallet funds, not cash, and Valve takes roughly 15% at the till — so asking prices there run well above the 49 keys, 17.22 ref shown above, which comes from the keys-and-metal market on backpack.tf. The two are different markets and are never blended. Steam lists the item as “Unusual Barnstormer”, with no effect in the name — the effect comes from the individual listing.
Price history
62 observations
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
Green Energy Barnstormer sell price, 2025-09-25 to 2026-09-05: 62 observations, from 36.1 keys to 49.3 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
36.1 keys
28.7 keys
9 OCT 2025 · 08:24 UTC
35.5 keys
30.1 keys
19 OCT 2025 · 20:11 UTC
33.7 keys
28.7 keys
10 NOV 2025 · 00:32 UTC
34.0 keys
28.9 keys
19 NOV 2025 · 14:40 UTC
57.9 keys
48.0 keys
1 DEC 2025 · 00:52 UTC
62.0 keys
52.6 keys
6 JAN 2026 · 09:36 UTC
59.5 keys
42.6 keys
22 JAN 2026 · 01:43 UTC
52.2 keys
39.6 keys
15 FEB 2026 · 16:39 UTC
54.2 keys
45.5 keys
23 FEB 2026 · 14:40 UTC
51.0 keys
43.1 keys
8 MAR 2026 · 22:41 UTC
50.1 keys
42.4 keys
16 MAR 2026 · 16:07 UTC
49.4 keys
41.8 keys
30 MAR 2026 · 02:07 UTC
54.3 keys
19.2 keys
5 APR 2026 · 16:29 UTC
54.3 keys
19.2 keys
19 APR 2026 · 22:30 UTC
53.6 keys
31.3 keys
29 APR 2026 · 00:30 UTC
50.0 keys
34.3 keys
17 MAY 2026 · 22:31 UTC
52.9 keys
40.0 keys
1 JUN 2026 · 00:29 UTC
53.4 keys
40.7 keys
8 JUN 2026 · 00:30 UTC
52.7 keys
40.4 keys
22 JUN 2026 · 00:10 UTC
53.6 keys
42.0 keys
29 JUN 2026 · 01:14 UTC
50.3 keys
43.7 keys
12 JUL 2026 · 20:45 UTC
48.2 keys
41.9 keys
19 JUL 2026 · 22:44 UTC
50.8 keys
44.1 keys
3 AUG 2026 · 06:24 UTC
56.2 keys
48.8 keys
15 AUG 2026 · 11:12 UTC
56.6 keys
49.2 keys
24 AUG 2026 · 10:08 UTC
25.0 keys
21.7 keys
25 AUG 2026 · 10:09 UTC
25.4 keys
22.1 keys
25 AUG 2026 · 22:09 UTC
25.5 keys
22.2 keys
26 AUG 2026 · 22:09 UTC
25.8 keys
22.5 keys
27 AUG 2026 · 10:08 UTC
25.9 keys
22.5 keys
28 AUG 2026 · 11:22 UTC
26.2 keys
22.8 keys
28 AUG 2026 · 22:09 UTC
26.6 keys
23.1 keys
29 AUG 2026 · 22:09 UTC
26.9 keys
23.4 keys
30 AUG 2026 · 22:09 UTC
27.1 keys
23.6 keys
31 AUG 2026 · 10:09 UTC
27.1 keys
23.6 keys
2 SEP 2026 · 08:08 UTC
47.1 keys
41.0 keys
2 SEP 2026 · 20:08 UTC
47.9 keys
41.6 keys
3 SEP 2026 · 20:08 UTC
49.5 keys
43.0 keys
4 SEP 2026 · 08:08 UTC
50.6 keys
44.0 keys
5 SEP 2026 · 08:08 UTC
49.3 keys
42.9 keys
Price history in numbers
62 readings since 25 Sep 2025
Over the last 30 days the Green Energy Barnstormer's sell price ranged from 25.0 keys to 56.8 keys and is down 13.2% after 24 moves. Over a year it ranged from 25.0 keys to 62.1 keys (up 36.5%). Today's 49.3 keys sits in the middle of its range: the lowest we have recorded is 25.0 keys (24 Aug 2026) and the highest 62.1 keys (25 Nov 2025). The price has moved 60 times since we began recording it — about once every 6 days.