| Date | Source | Headline | |
|---|---|---|---|
| 23rd Mar 2009 | 7:00 am | RNS | Manufacturing facility secured |
| 23rd Mar 2009 | 7:00 am | RNS | Half Yearly Report |
| 3rd Mar 2009 | 4:00 pm | RNS | Notice of Interim Results |
| 16th Feb 2009 | 5:11 pm | RNS | Director Declaration |
| 16th Feb 2009 | 7:00 am | RNS | Board Appointments |
| 2nd Feb 2009 | 7:00 am | RNS | New CHP Contract Secured |
| 20th Jan 2009 | 7:00 am | RNS | Holding(s) in Company |
| 20th Jan 2009 | 7:00 am | RNS | Holding(s) in Company |
| 2nd Jan 2009 | 7:00 am | RNS | Total Voting Rights |
| 30th Dec 2008 | 7:00 am | RNS | Directorate Change |
| 24th Dec 2008 | 7:00 am | RNS | Blocklisting Interim Review |
| 24th Dec 2008 | 7:00 am | RNS | Director/PDMR Shareholding |
| 22nd Dec 2008 | 7:00 am | RNS | Director/PDMR Shareholding |
| 19th Dec 2008 | 4:42 pm | RNS | Second Price Monitoring Extn |
| 19th Dec 2008 | 4:36 pm | RNS | Price Monitoring Extension |
| 16th Dec 2008 | 7:00 am | RNS | Holding(s) in Company |
| 15th Dec 2008 | 8:30 am | RNS | Grant of Share Options |
| 5th Dec 2008 | 4:44 pm | RNS | Result of AGM |
| 27th Nov 2008 | 7:00 am | RNS | Alpha CHP product built on schedule |
| 19th Nov 2008 | 4:37 pm | RNS | Price Monitoring Extension |
| 17th Nov 2008 | 5:24 pm | RNS | Holding(s) in Company |
| 13th Nov 2008 | 7:00 am | RNS | Holding(s) in Company |
| 3rd Nov 2008 | 2:21 pm | RNS | Director/PDMR Shareholding |
| 30th Oct 2008 | 11:51 am | RNS | Notice of AGM |
| 27th Oct 2008 | 4:51 pm | RNS | Second Price Monitoring Extn |
| 27th Oct 2008 | 4:41 pm | RNS | Price Monitoring Extension |
| 24th Oct 2008 | 5:19 pm | RNS | Holding(s) in Company |
| 24th Oct 2008 | 12:18 pm | RNS | Holding(s) in Company |
| 20th Oct 2008 | 1:47 pm | RNS | Director/PDMR Shareholding - Amendment |
| 17th Oct 2008 | 5:55 pm | RNS | Director/PDMR Shareholding |
| 14th Oct 2008 | 3:18 pm | RNS | Holding(s) in Company |
| 14th Oct 2008 | 3:16 pm | RNS | Additional Listing |
| 13th Oct 2008 | 6:28 pm | RNS | Holding(s) in Company |
| 8th Oct 2008 | 3:05 pm | RNS | Holding(s) in Company |
| 7th Oct 2008 | 2:54 pm | RNS | Holding(s) in Company |
| 2nd Oct 2008 | 12:18 pm | RNS | Total Voting Rights |
| 30th Sep 2008 | 7:00 am | RNS | FUEL CELL MILESTONE ACHIEVED |
| 30th Sep 2008 | 7:00 am | RNS | Final Results |
| 15th Sep 2008 | 9:56 am | RNS | Holding(s) in Company |
| 11th Sep 2008 | 5:47 pm | RNS | Notice of Results |
| 11th Sep 2008 | 4:35 pm | RNS | Price Monitoring Extension |
| 4th Aug 2008 | 9:01 am | RNS | Total Voting Rights |
| 18th Jul 2008 | 5:24 pm | RNS | Holding(s) in Company |
| 11th Jul 2008 | 2:44 pm | RNS | Holding(s) in Company |
| 2nd Jul 2008 | 10:45 am | RNS | Director/PDMR Shareholding |
| 1st Jul 2008 | 1:44 pm | RNS | Total Voting Rights |
| 24th Jun 2008 | 9:00 am | RNS | British Gas CHP Update |
| 23rd Jun 2008 | 1:49 pm | RNS | Six monthly return |
| 17th Jun 2008 | 7:00 am | RNS | British Gas CHP Update |
| 2nd Jun 2008 | 5:45 pm | RNS | Holding(s) in Company |
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