Acquisition Completion

11 April 2022

SDCL Energy Efficiency Income Trust plc
("SEEIT" or the "Company")

Acquisition Completion

Further to its announcement on 7 February 2022, SEEIT confirms that it has completed the acquisition of an 80% equity interest in a high-efficiency and operational biomass cogeneration plant, Sociedade de Iniciativa e Aproveitamentos Florestais - Energia, S.A. ("SIAF" or the "Project"), in Mangualde, Portugal from Capwatt S.A ("Capwatt"), for approximately €22 million. Furthermore, SEEIT has delivered an additional €15 million to SIAF to part pay down its existing project finance green bond facility.

SIAF generates heat and power from sustainably sourced biomass. It supplies critical onsite heat to an industrial facility manufacturing medium-density fibreboard ("MDF") owned by Sonae Arauco PT ("SAPT") on a take-or-pay basis and it generates electricity which benefits from the Portuguese Feed-in-Tariff to the grid. The Project is expected to benefit from at least a further 23 years of stable, inflation linked, contracted cashflows with no demand risk, providing good visibility of returns for SEEIT.

The acquisition has been funded from existing cash reserves. The remaining balance of SIAF's project finance green bond facility will be equivalent to approximately €20 million.

In addition to the acquisition of the Project, SEEIT and Capwatt have signed a Heads of Terms to focus on the joint development and acquisition of energy efficiency projects across Iberia.

For Further Information

About SEEIT

SDCL Energy Efficiency Income Trust plc is a constituent of the FTSE 250 index. It was the first UK listed company of its kind to invest exclusively in the energy efficiency sector. Its projects are primarily located in the UK, Europe and North America and include, inter alia, a portfolio of cogeneration assets in Spain, a portfolio of commercial and industrial solar and storage projects in the United States, a regulated gas distribution network in Sweden and a district energy system providing essential and efficient utility services on one of the largest business parks in the United States.

The Company aims to deliver shareholders value through its investment in a diversified portfolio of energy efficiency projects which are driven by the opportunity to deliver lower cost, cleaner and more reliable energy solutions to end users of energy.

The Company is targeting an attractive total return for shareholders of 7-8 per cent. per annum (net of fees and expenses and by reference to the initial issue price of £1.00 per Ordinary Share), with a stable dividend income, capital preservation and the opportunity for capital growth. The Company is targeting a dividend of 5.62p per share in respect of the financial year to 31 March 2022. SEEIT's last published NAV was 104.5p per share as at 30 September 2021.

Past performance cannot be relied on as a guide to future performance.

Further information can be found on the Company's website at www.seeitplc.com.

Investment Manager

SEEIT's investment manager is Sustainable Development Capital LLP ("SDCL"), an investment firm established in 2007, with a proven track record of investment in energy efficiency and decentralised generation projects in the UK, Continental Europe, North America and Asia.

SDCL is headquartered in London and also operates worldwide from offices in New York, Dublin, Madrid, Hong Kong and Singapore. SDCL is authorised and regulated in the UK by the Financial Conduct Authority.

Further information can be found on at www.sdclgroup.com.