First, pepper plants are not houseplants and they will never do as well indoors as they would if grown outside or in a well ventilated green house. 4-5 hours of sunlight through plexiglass is not the same as the 6+ hours of unobstructed sunlight they require.

Pollination of the flowers - what will ultimately create fruit - is also less reliable indoors. Absent any wind or breeze or flying pollinating insects, you will have to do so by hand. I suspect this is the root cause of your lack of pepper development.

Uhhh, well, Thank you for the reply I guess? I do appreciate your ... attempt... to help.

First, not everyone is so privileged to have land to grow on or a big fancy green house. OBVIOUSLY those would be better places to grow plants. Second, OBVIOULSY the sun coming through my plexiglass sun room isn't as good as the ACTUAL SUN. DUH. However, I'm looking for help for MY situation. I know dang gone well that you can grow peppers indoors and get results because lots of people do it according to what I've read online. So what I'm looking for is assistance on what I can do to increase the chances of peppers growing INDOORS, IN MY SITUATION. All the things I've been reading (alongside posting this request for assistance) say different things, such as warmer room, adding fertilizer after flower, and a few other tips but guess what none of them say, that pollination is required. Maybe it is required (and I can do it myself indoors, however no post ever even mentioned it), I don't know, but rather than trying to make me feel dumb, PERHAPS you could help me with your knowledge. If you don't have any, just say that, its OK to not know. I mean, do you think in winter time people are just like "whelp, no more peppers for 8 months" nope, they don't do that. they continue to grow them indoors, SUCCESSFULLY and that is what I'm asking for help in achieving.

Maybe someone else out there is willing to share some knowledge and not just try to belittle me online? that would be great!!

Thanks!

Did you even bother to read the entire comment?

"Pollination of the flowers - what will ultimately create fruit - is also less reliable indoors. Absent any wind or breeze or flying pollinating insects, you will have to do so by hand. I suspect this is the root cause of your lack of pepper development."

In addition to lack of sunlight - or an efficient substitute - lack of effective pollination is 95% likely to be the cause of your lack of fruit. Folks who grow peppers and tomatoes or other solanaceae indoors or in greenhouses also encounter this issue and either employ fans or hand pollinate to generate successful fruiting.

btw, no one was trying to "belittle" you - geesh!! Just pointing out that attempting to grow temperate climate plants indoors is difficult for even very experienced gardeners unless they have created the right conditions for success. You have not. You cannot treat them like an ordinary houseplant and expect them to produce as they would under normal outdoor growing conditions.

You also do not need a large expanse of land, a greenhouse or even a garden to grow outside. Just an apartment balcony or fire escape could work. Or a front porch or patio or any other outdoor space that could accommodate a container