I do not believe you have a remedy. The legal theory upon which a lawsuit or legal right would be based is that the windows constitute a "private nuisance". In Maryland, in a case involving an alleged light related nuisance, a recent appellate court decision set forth the legal standard an reviewed its application in the case of a drive in theater:
A finding of private nuisance requires a two-part analysis: (1)
viewing the defendant's activity, was the interference unreasonable
and substantial? and (2) viewing the plaintiff's alleged harm, was the
inconvenience or harm caused by the interference objectively
reasonable?
First, the court found that Bengies failed to present
sufficient evidence to demonstrate that Royal Farms' use of its lights
at nighttime was unreasonable and substantial:
The Royal Farms' lighting is not aimed or directed or oriented towards
the drive-in.... There is simply no reasoned or rational basis to
conclude that these very typical and ordinary commercial lights,
employed lawfully by a business on the far side of the road from the
drive-in could conceivably have constituted the type of substantial
and unreasonable interference with the operation of the drive-in
required by Maryland Law before a fact-finder can conclude that there
is nuisance.
Blue Ink, Ltd. v. Two Farms, Inc., 96 A.3d 810, 821 (Md. Spec. App. 2014). Cf. Brozynski v. Kerney, 2006 WL 2160841, at *2 (Tex. App.--Waco Aug. 2, 2006) (glare from all night use of very bright Christmas lights did not, as a matter of law, constitute a private nuisance, but the suit was not so devoid of an argument for a change in the law that it was sanctionable as frivolous without evidence of an intent to harass by bringing the suit).
An energy efficient window would generally constitute the same kind of "typical and ordinary" building material "employed lawfully" (and, indeed, sometimes required by building codes).
Most jurisdictions would not recognize window glare as a "nuisance" and would consider the melting of your siding to be ordinary wear and tear that you must bear and replace from time to time.
