NOVELTY - Bioreactor (303) comprises container for culturing photoautotrophic organism having at least one light absorption pigment; light source configured to emit wavelengths of light reaching container; the container containing light-receiving element configured to receive solar light, and a movable unit mounted in it; light conducting channel operably linked to light-receiving element; a harvest port extending from length of container to collect concentrated photoautotrophic organism; an energy converter for production of electrical energy from a renewable energy source.    USE - For the growth of photoautotrophic organism (claimed) for robust production of biomass and/or industrial chemicals.    ADVANTAGE - The bioreactor allows for production of biomass or biomass product by growth of a photoautotrophic organism in a bioreactor; utilizing renewable energy source for powering the bioreactors and other electrical components.    DETAILED DESCRIPTION - A bioreactor (303) comprises a container for culturing a photoautotrophic organism having at least one light absorption pigment, the light absorption pigment having at least one peak absorption wavelengths; a light source configured to emit at least one wavelengths of light reaching container, where the wavelengths are adjustable based on growth profile of photoautotrophic organism in absence of solar light; the container containing a light-receiving element configured to receive solar light, and a movable unit mounted in it, where movable unit is adapted to translate horizontally or vertically along a length of container, where translation concentrates photoautotrophic organism on one side of movable unit; light conducting channel operably linked to light-receiving element; a harvest port extending from length of container to collect concentrated photoautotrophic organism; an energy converter for production of electrical energy from a renewable energy source. The bioreactor further comprises components selected from a baffle, a mixer, a gas supply, a gas sparger, a pressure relief valve, a condenser, a heater, a cooling jacket, a viewing window, and an optical light distributor; light conducting channel or a cleaning element mounted on the movable unit; energy conditioning device or an energy storing device. INDEPENDENT CLAIMS are included for following:    (1) array of light sources comprising at least one light sources configured to emit at least one wavelengths of light, where light emission from array of light sources is configured to be adjustable to match at least one peak absorption wavelengths of a light absorption pigment that is contained in a photoautotrophic organism;    (2) manufacturing plant for production of biomass and electric energy involving a bioreactor for production of biomass comprising a photoautotrophic organism and a container; and a power plant operably linked to bioreactor, where power plant converts biomass to electricity and carbon dioxide, where carbon dioxide is supplied to bioreactor for production of biomass;    (3) producing biomass involving culturing a photoautotrophic organism in a medium contained in a bioreactor operably linked to light source that emits photons to support growth of photoautotrophic organism, where the light source is configured to yield a biomass of energy that is supplied to the light source;    (4) culturing a photoautotrophic organism involving introducing photoautotrophic organism to a bioreactor, where the bioreactor comprises a container operably linked to light source that is configured to emit at least one wavelengths of light reaching container, and where the at least one wavelengths of light are adjustable based on growth profile of photoautotrophic organism; and operating bioreactor to provide at least one wavelengths of light; determining a growth profile of phototrophic organism; adjusting the at least one wavelengths of light; measuring a biomass production by phototrophic organism; producing electrical energy from a renewable energy source; utilizing electrical energy to power a light source; maintaining growth in absence of solar light using an artificial light source;    (5) harvesting a photoautotrophic organism from a bioreactor involving activating a movable unit mounted in the bioreactor; concentrating photoautotrophic organism on one side of the movable unit; and harvesting photoautotrophic organism on one side of the movable unit through a harvest port extending from length of bioreactor to collect a solution of concentrated photoautotrophic organism;    (6) producing energy using a manufacturing plant involving growing a photoautotrophic organism in a bioreactor for producing a biomass; using a power plant for producing electricity and carbon dioxide from biomass; and supplying electricity and carbon dioxide to bioreactor for production of biomass.    DESCRIPTION OF DRAWING(S) - The figure shows view of bioreactor.    Bioreactor (303)    Pre-mixing vat (304)    Evaporator (306)    Electricity (310)    Heat engine (321)