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Accounts Receivable (Details) - USD ($) | Dec. 31, 2015 | Dec. 31, 2014
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Summary of accounts receivable |  |
Total gross receivables | $ 110,781 | $ 190,679
Less: allowance for doubtful accounts | (24,746) | (24,746)
Total net receivables | 86,035 | 165,933
Billed SG block sales [Member] |  |
Summary of accounts receivable |  |
Total gross receivables | 82,200 | 172,837
Billed Engineering services [Member] |  |
Summary of accounts receivable |  |
Total gross receivables | 14,181 | 2,000
Billed Project management [Member] |  |
Summary of accounts receivable |  |
Total gross receivables | $ 14,400 | $ 15,842

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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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