DER

distributed energy resources, such as PV photo voltaic solar and wind

DFI

development finance institution

DH

district heating

DHC

district heating and cooling

DME

dimethyl ether

DOE

Department of Energy (United States)

DOI

Department of the Interior (United States)

DOT

Department of Transportation (United States)

DRI

direct reduced iron

derivatives

generally used as an instrument to hedge risk, but can also be used for speculative purposes.

direct equity investment

the acquisition of equity (or shares) in a company.

dual fuel

a vehicle that has two fuel systems and can switch from one fuel to the other, such as gasoline/compressed natural gas (CNG).

dynamic targets

emission objectives that are adjusted according to a pre-agreed metric such as GDP for a country or production level for an industry.

decimal prefixes

10¹ deca (da) - 10^-1 deci (d)

10² hecto (h) - 10^-2 centi (c)

10³ kilo (k) - 10^-3 milli (m)

10⁶ mega (M) - 10^-6 micro (µ)

10⁹ giga (G) - 10^-9 nano (n)

10¹² tera (T) - 10^-12 pico (p)

10¹⁵ peta (P) - 10^-15 femto (f)

10¹⁸ exa (E) - 10^-18 atto (a)