Energy generating roof system

A sewer gas heat recovery system comprising;

• a sewer gas exhaust pipe;
• a heat recovery conduit comprising an energy collection portion and a heat exchange portion, wherein the energy collection portion of the heat recovery conduit is located within the sewer gas exhaust pipe, wherein the heat recovery conduit is adapted to transport a first heat recovery fluid wherein the first heat recovery fluid is adapted to absorb thermal energy when passing through the energy collection portion of the heat recovery conduit;
• and
• a first heat exchanger adapted to exchange heat with the first heat recovery fluid passing through the heat exchange portion of the heat recovery conduit.

A combined sewer gas heat recovery and energy generating roof system comprising:

• an energy generating roof system (EGRS) comprising:
• a plurality of roof support members,
• a substantially planar vapor barrier located above the roof support members and operatively connected thereto,
• a plurality of spacing members located above the vapor barrier and secured to the roof support members,
• a roof covering operatively connected to the spacing members, wherein the roof covering and the vapor barrier define an air filled space therebetween, and
• a EGRS conduit comprising an energy collection portion, wherein the energy collection portion of the conduit is located within the air filled space, wherein the conduit is adapted to transport a first fluid, wherein the first fluid is adapted to absorb thermal energy when passing through the energy collection portion of the conduit;
• a sewer gas heat recovery system (SGHRS) comprising:
• a sewer gas exhaust pipe, and
• a SGHRS conduit comprising an energy collection portion, wherein the energy collection portion of the SGHRS conduit is located within the sewer gas exhaust pipe, wherein the SGHRS conduit is adapted to transport the first fluid wherein the first fluid is adapted to absorb thermal energy when passing through the energy collection portion of the SGHRS conduit;
• a first heat exchanger adapted to exchange heat with the first fluid;
• and
• a switching valve in fluid communication with the EGRS conduit and the SGHRS conduit, wherein the switching valve is operable between:
• a first position wherein the first fluid is directed through the energy collection portion of the SGHRS conduit but is prevented from passing through the energy collection portion of the EGRS conduit;
• a second position wherein the first fluid is directed through the energy collection portion of the SGHRS conduit and through the energy collection portion of the EGRS conduit;
• and
• a third position wherein the first fluid is directed through the energy collection portion of the EGRS conduit but is prevented from passing through the energy collection portion of the SGHRS conduit.

A ventilation duct heat recovery system comprising;

• a ventilation duct;
• a heat recovery conduit comprising an energy collection portion and a heat exchange portion, wherein the energy collection portion of the heat recovery conduit is located within the ventilation duct, wherein the heat recovery conduit is adapted to transport a first heat recovery fluid wherein the first heat recovery fluid is adapted to absorb thermal energy when passing through the energy collection portion of the heat recovery conduit;
• and
• a first heat exchanger adapted to exchange heat with the first heat recovery fluid passing through the heat exchange portion of the heat recovery conduit.