REG-BlackRock New Engy: Net Asset Value(s)

NET ASSET VALUE

BLACKROCK NEW ENERGY INVESTMENT TRUST PLC

The unaudited net asset value for BlackRock New Energy Investment Trust plc at
close of business on 1 April 2010 was:

50.88p Capital & including income (Pre Performance Fee) - undiluted for subscription shares
50.88p Capital & including income (Post Performance Fee) - undiluted for subscription shares
50.11p Including income (Pre Performance Fee) - diluted for subscription shares
50.11p Including income (Post Performance Fee) - diluted for subscription shares

Notes:

1. Under the investment management agreement dated 14 December 2006, a
performance fee is payable based on outperformance of the Company's benchmark index if the Company's
NAV reaches a high watermark of 55.58p. In accordance with the AIC statement of Recommended Practice,
the above NAV includes any relevant performance fee provisions to the extent that the high
watermark has been attained. The NAV prior to the calculation of any performance fee accruals, for the
purposes of calculating the highwatermark, amounted to: 50.88p (Capital including income); 50.11p (Capital
incl. income diluted).

2. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.

3. Following the conversion of 1,809,190 subscription shares into ordinary
shares on 8 February 2010, the number of ordinary shares now in issue totals
246,565,844. The number of subscription shares now in issue totals 45,933,967.

4. For the latest daily net asset value, previous month end performance
statistics, asset allocation and ten largest holdings of the BlackRock managed
Investment Trusts; see BLRKINDEX on Reuters or page 8800 on ICB (Topic 3).